insulgard installation and operation manual - eatonpub/@electrical/documents/content/... · 10.1...

InsulGard® Continuously Online Partial Discharge Monitoring Installation and Operation Manual IB02713002E Rev. E1 Effective Feb. 2017

InsulGard Installation and Operation Manual

InsulGard Installation and Operation Manual IB02713002E Rev. E1 Effective Feb. 2017

EATON CORPORATION www.eaton.com/pd 2

Class A EMC Statements

FCC Part 15

NOTE: This equipment has been tested and found to comply with the limits for a Class A digital device, pursuant to Part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful interference when the equipment is operated in a commercial environment. This equipment generates, uses, and can radiate radio frequency energy and, if not installed and used in accordance with the instruction manual, may cause harmful interference to radio communications. Operation of this equipment in a residential area is likely to cause harmful interference in which case the user will be required to correct the interference at own expense.

Requesting a Declaration of Conformity

The EC Declaration of Conformity is available upon request for products with a CE mark. For copies of the EC Declaration of Conformity, contact:

Eaton Predictive Diagnostics 5421 FELTL RD Suite 190 Minnetonka MN 55343 USA

Phone: (952) 912-1331 or (828) 687-3086

Fax: (952) 912-1355



Table of Contents Foreword ................................................................................................................................................................... 7 1 Description ....................................................................................................................................................... 8

1.1 General ..................................................................................................................................................... 8

1.2 Principles of Operation.......................................................................................................................... 10

1.3 Specification ........................................................................................................................................... 12

1.4 Important Features and Options ........................................................................................................... 13

1.4.1 Data Structure and storage. ................................................................................................................................ 13

1.4.2 Trend .................................................................................................................................................................. 14

1.4.3 Alarms ............................................................................................................................................................... 14

1.4.4 Continuous Watch Feature ................................................................................................................................. 15

1.4.5 Phase Resolved Data and Phase Reference ........................................................................................................ 15

1.4.6 Schedule ............................................................................................................................................................. 15

1.4.7 Self-test and Self-calibration.............................................................................................................................. 16

1.4.8 PD Intensity and PD pulse repetition rate calculation low level cut-off ............................................................ 16

1.4.9 Auxiliary Inputs ................................................................................................................................................. 16

1.4.10 Measurement Suspend .................................................................................................................................. 16

1.4.11 Communication Options and Device Address .............................................................................................. 17

1.4.12 Software ........................................................................................................................................................ 17

1.4.13 InsulGard configuration (settings) ................................................................................................................ 17

1.5 InsulGard mounting options and sensor connection ........................................................................... 19

1.5.1 Panel mount InsulGard ...................................................................................................................................... 20

1.5.2 Door mount InsulGard ....................................................................................................................................... 26

1.6 Sensors for InsulGard ........................................................................................................................... 27 2 Applications ................................................................................................................................................... 28

2.1 General ................................................................................................................................................... 28

2.2 Motor and Small Generator Applications ............................................................................................. 28

2.2.1 PD sensors at line terminals: .............................................................................................................................. 28

2.2.2 RTD sensors in winding depth ........................................................................................................................... 29

2.2.3 Auxiliary sensors ............................................................................................................................................... 29

2.3 Large Generator Applications ............................................................................................................... 29

2.3.1 PD sensors at line terminals: .............................................................................................................................. 29

2.3.2 RTD sensors in winding depth ........................................................................................................................... 29

2.4 MV Switchgear Applications ................................................................................................................. 30

2.4.1 PD sensors ......................................................................................................................................................... 30

2.4.2 Auxiliary sensors ............................................................................................................................................... 30



2.5 Configuration of Alarm Thresholds ..................................................................................................... 31

2.6 Noise Aspects ......................................................................................................................................... 31

2.7 Device Location and Environmental Issues ......................................................................................... 32

2.8 Additional Parameters to Measure ....................................................................................................... 32

2.9 Networking and Communicating with InsulGard ................................................................................ 32 3 On-Site Installation ....................................................................................................................................... 34

3.1 InsulGard system content ...................................................................................................................... 34

3.2 InsulGard system packages ................................................................................................................... 35

3.3 Important Note on Sensor Installation ................................................................................................. 35

3.4 Step 1 - Hardware Installation .............................................................................................................. 35

3.5 Step 2 - Sensors and Power connections .............................................................................................. 37

3.6 Step 3 - Monitor Installation and Final Connections .......................................................................... 37 4 Startup ............................................................................................................................................................ 38

4.1 General ................................................................................................................................................... 38

4.2 Quick setting via the monitor keypad .................................................................................................... 38

4.3 Communications Board Setup .............................................................................................................. 41

4.3.1 USB ................................................................................................................................................................... 41

4.3.2 Ethernet .............................................................................................................................................................. 41

4.3.3 Tips for Communications Setup ........................................................................................................................ 44 5 Troubleshooting ............................................................................................................................................. 46

5.1 Troubleshooting Tips ............................................................................................................................. 46

5.2 InsulGard replacement procedure ........................................................................................................ 48

5.3 Error Messages ...................................................................................................................................... 49

5.4 Fuse Replacement .................................................................................................................................. 49 6 Appendix I InsulGard Front Panel Keypad Operation ............................................................................. 51

6.1 Entering Setup ....................................................................................................................................... 51

6.2 Setup via Keypad .................................................................................................................................... 51

6.2.1 Date .................................................................................................................................................................... 51

6.2.2 Time ................................................................................................................................................................... 52

6.2.3 Activate PD Channels ........................................................................................................................................ 52

6.2.4 Parameters to Display ........................................................................................................................................ 53

6.2.5 Set a Sensor Sensitivity ...................................................................................................................................... 55

6.2.6 Set Measurement Schedule ................................................................................................................................ 55

6.2.7 Data Saving Mode ............................................................................................................................................. 56

6.2.8 Pulse Width and Interval .................................................................................................................................... 57

6.2.9 Alarm Thresholds .............................................................................................................................................. 58

6.2.10 Rated Voltage ................................................................................................................................................ 60



6.2.11 Rated Current ................................................................................................................................................ 60

6.2.12 Number of Power Cycles for Data Acquisition ............................................................................................. 60

6.2.13 Alarm Relay Mode ........................................................................................................................................ 61

6.2.14 Minimum Noise Channel Magnitude Level .................................................................................................. 61

6.2.15 Display Scroll Time ...................................................................................................................................... 62

6.2.16 ModBus Address ........................................................................................................................................... 62

6.2.17 Continuous Watch Options ........................................................................................................................... 62

6.2.18 Baud Rate ...................................................................................................................................................... 63

6.2.19 Select PDI or Qmax Output .......................................................................................................................... 63

6.2.20 Start/Stop InsulGard ...................................................................................................................................... 64

6.2.21 Phase Shift .................................................................................................................................................... 64

6.2.22 Channel Phase ............................................................................................................................................... 65

6.2.23 Frequency Range .......................................................................................................................................... 66

6.2.24 Suspend for Temperature .............................................................................................................................. 66

6.2.25 Suspend for Voltage ...................................................................................................................................... 66

6.2.26 Suspend for Current ...................................................................................................................................... 67

6.2.27 Trend Window Length .................................................................................................................................. 68

6.2.28 Calibrate Temperature ................................................................................................................................... 68

6.2.29 Calibrate Voltage .......................................................................................................................................... 69

6.2.30 Calibrate Current ........................................................................................................................................... 70

6.2.31 Calibrate 4-20mA Loop ................................................................................................................................ 71

6.2.32 Calibrate Humidity Sensor ............................................................................................................................ 72

6.2.33 Noise Filter Offsets ....................................................................................................................................... 73

6.2.34 Channel Low Magnitude Limit ..................................................................................................................... 73

6.2.35 Software Filters ............................................................................................................................................. 75

6.2.36 ModBus Protocol .......................................................................................................................................... 75

6.2.37 Start a Single Measurement .......................................................................................................................... 76

6.2.38 IP Address ..................................................................................................................................................... 76

6.3 Accessing Memory via Keypad .............................................................................................................. 76

6.3.1 Clear Data Memory ........................................................................................................................................... 76

6.3.2 Check Data Saved in Memory ........................................................................................................................... 76 7 Appendix II Synchronization and Phase Reference Shift.......................................................................... 78

7.1 Synchronization ..................................................................................................................................... 78

7.2 Typical Phase Reference Shift for External Synchronization ............................................................. 79

7.3 Determining Phase Reference Shift ...................................................................................................... 79

7.4 InsulGard with Automatically Synchronization Switching....................................................................... 81 8 Appendix III Communications Board Interface ........................................................................................ 84



8.1 General ................................................................................................................................................... 84

8.2 Network Configuration .......................................................................................................................... 84

8.3 Change Passwords ................................................................................................................................. 88

8.4 Modbus RTU Configuration ................................................................................................................. 89

8.5 Date/Time Configuration ...................................................................................................................... 89

8.6 FTP Client Configuration ..................................................................................................................... 91

8.7 Email Configuration .............................................................................................................................. 92

8.8 Identification Page ................................................................................................................................ 95

8.9 InsulGard Summary Page ..................................................................................................................... 96

8.10 InsulGard Channels Page ..................................................................................................................... 97

8.11 Alarms .................................................................................................................................................... 98

8.12 Logs ........................................................................................................................................................ 99

8.13 Documentation ....................................................................................................................................... 99

8.14 Ethernet Virtual Communications Port .............................................................................................. 100

8.15 Communications Firmware and Upgrade .......................................................................................... 100

8.15.1 Steps for Updating the Communication Firmware via the Web User Interface .......................................... 100 9 Appendix IV USB Device Driver Installation ........................................................................................... 103 10 Appendix V. Ethernet Virtual Communications Port Driver Installation and Configuration ............ 107

10.1 ComPortConfigurator User Manual ................................................................................................... 107



Foreword The purpose of this manual is to describe the functionality of the new generation of InsulGard. New features include a graphic dot matrix display and more communication options embedded, such as USB port, Ethernet port over network, webpage and FTP server. It serves as primary guideline for qualified personnel involved in the onsite installation, start-up, commissioning and continuous monitoring.

The whole document is organized in the following way:

Section 1 Description introduces the basic functions and operations of InsulGard

Section 2 Application presents the general considerations for InsulGard applications, especially configuration of different sensors for different applications.

Section 3 On-Site Installation shows the procedures for onsite installation of InsulGard systems.

Section 4 Startup presents the procedures for initial setup using the front panel keypad without a computer upon completion of InsulGard installation.

Section 5 Troubleshooting provides troubleshooting suggestions in different scenarios.

Section 6 Appendix I InsulGard Front Panel Keypad Operation gives details about how to operate using the front panel keypad and display on the InsulGard.

Section 7 Appendix II Synchronization and Phase Reference Shift shows the procedures to make proper synchronization and measure phase shift between InsulGard and monitored object.

The following three sections should be ignored if InsulGard does not include the optional communi cation board.

Section 8 Appendix III Communications Board Interface presents the features available through the optional communications board.

Section 9 Appendix IV USB Device Driver Installation gives exact steps to install the driver for communication between a computer and InsulGard with a USB cable through the USB port on the communication board.

Section 10 Appendix V. Ethernet Virtual Communications Port Driver Installation gives exact steps to install the driver and configure the interface to use the Ethernet port on the communications board as a serial port to communicate between a computer and InsulGard online.



1 Description

1.1 General InsulGard by Eaton Corporation is a standalone microprocessor-controlled continuous partial discharges monitoring device for use with a wide range of medium voltage power equipment. It works with 50/60 Hz frequency powered equipment as well as with variable frequency applications. There are monitor’s options for low frequency measurements down to 5 Hz and high frequency up to 400 Hz measurements .

Partial discharges (PD) are the small sparks that commonly occur within or on surface of insulation in various types of medium and high voltage equipment. Over time, PD destroys the insulation, eventually causing insulation breakdown (full discharge). In general, it takes months or even years before PD will cause a failure of insulation. Therefore, PD is an important indicator of insulation degradation for prompt maintenance or repair.

InsulGard is designed to provide an alarm based on PD characteristics at an early stage of insulation degradation. It measures PD from up to 15 high frequency PD sensors, stores the information in internal memory and provides various alarm interfaces to the users if any set points are exceeded. Depending on the application various PD sensors can be used.

InsulGard has three auxiliary inputs for measuring auxiliary parameters of the monitoring equipment: temperature, load and humidity or voltage, depending on the application. Those parameters will be correlated with Partial Discharge values for advanced data analysis. Corresponding sensors are supplied by Eaton.

InsulGard includes a main unit and a Sensor Interface Board connected by flat ribbon cable (Figure 1-1). All sensors have to be connected to the Sensor Interface Board.

Five LEDs on the front panel of the main unit indicate Alarm status: green LED for Normal, yellow LED for Warning (Alarm 1) and red LED for Alarm (Alarm 2), Setup and Memory operation modes.

A graphic LCD display shows measurement data, setup or memory content and error messages. During normal operation the display continuously scrolls through the last measured data, auxiliary parameters and other information.

With the front panel keypad and display, users can operate InsulGard directly without a computer. The membrane keypad has four navigation ARROW keys (), four function keys: Esc, d Enter,Set and Memory.

InsulGard has several interfaces (Figure 1-1) to be easily implemented into any alarm and SCADA system. These options include three C-form relays for Warning (Alarm 1), Alarm (Alarm 2) and Device Status indication, 4-20mA output, RS485 and two USB interfaces and an Ethernet interface which enable convenient online communication, webpage display and FTP server for data downloading.



a

b

Figure 1-1 a - Top: InsulGard main unit (right) and Sensor Interface Board (left). Bottom: b - Side view of the InsulGard.

15 channels for PD sensorsconnection and one channelfor noise signal.

Connector for flatribbon cable frommain unit

Inputs for auxiliary sensors

connection



1.2 Principles of Operation InsulGard has 16 signal channels. Channels 1 to 15 are designated for partial discharge sensors while channel 16 designated for noise suppression. All sixteen input channels have identical conditioning circuits (CC) that provide signal isolation, transient suppression, and high-pass filtering of the input signals. The frequency band of the PD signals for InsulGard is from 1 MHz to 20 MHz.

For each channel InsulGard acquires PD data in the form of three dimensional Phase-Resolved Pulse Height Distribution (PRPHD) - PD pulse count as a function of pulse magnitude and phase angle of monitored device voltage (60/50 Hz or voltage phase angle of a Variable Frequency Drive). Data are sorted into 24 phase windows (150 each) and 21 magnitude windows with magnitude dynamic range of ~70dB.

After data acquisition InsulGard firmware calculates integral PD parameters: Partial Discharge Intensity (PDI), Maximum Pulse magnitude (Qmax), Pulse Repetition Rate, and rate of upward trends of PDI and Qmax.

Partial Discharge Intensity (or Apparent PD power) is the value proportional to the power dissipated by partial discharges and represent “damaging power” of Partial Discharge. PDI measured in watts and defined as:

r

ni

ii VUS

TPDI ***

1

1

Qmax – defined as maximum repetitive magnitude of PD pulses. Above that magnitude pulse repetition rate must be at least 0.2 pulses per power cycle. Such approach will not take high magnitude random pulses as maximum PD magnitude.

Integral parameters are stored in internal data memory for each measurement, while PRPHD matrixes are stored only time to time to avoid data memory overfilling. This comprising two saving modes: Brief and Full or “Normal” and “Test” (in software settings). Each record is accompanied by time/date stamp and three auxiliary operating parameters: temperature, humidity, load current or voltage.

Before each measurement, InsulGard performs a self-test. If a problem detected, Status relay dry contacts open and an appropriate message appears on InsulGard display. Loss of power causes opening of status relay contacts too.

InsulGard acquires signals from the measurement channels sequentially multiplexing them to a single signal channel. Each pulse from each sensor is validated by the allowed pulse width. Noncompliant pulses will be discarded.

After each measurement, PDI, Qmax and Trend levels will be compared to preset Warning and Alarm thresholds for each active channel. If a warning threshold exceeded warning relay will operate and yellow LED will lit. If an alarm level is exceeded, InsulGard will trigger an additional measurement. If alarm condition will be confirmed, a red alarm LED will be turned on and the alarm relay will operate. Also phase resolved data will be stored in the memory and alarm event will be stored in log file in device memory.

Where:

T – measurement time

S - sensitivity of the PD sensor (C/V)

n – number of acquired PD pulses

Ui – magnitude of a PD pulse

Vr – rated voltage in the monitored equipment



PD measurements can be performed on a time schedule (up to 50 different times per day) or in specified time interval (from 1 minute to 23 hours 59 minutes) as long as the time interval is longer than a measurement time. Four scheduled measurements per day are recommended.

Between scheduled measurements, the “Continuous Watch” feature is enabled. All signal sensors are connected to a summation unit and then to a separate “Continuous Watch” channel. InsulGard continuously searches for an appearance of high magnitude pulses and pulse series. Magnitude threshold and repetition rate in series are configurable. If five events of pulse series are detected between the scheduled measurements, InsulGard will trigger PD measurement and display an alarm, if confirmed.

To provide correct measurements InsulGard must be synchronized with voltage frequency of the monitored equipment (see Section 7 Appendix II Synchronization and Phase Reference Shift) and must have correct settings for the type of equipment, rated voltage, and PD sensors used. All settings can be made using Setup mode from front panel keypad and display (see Section 6 Appendix I InsulGard Front Panel Keypad Operation ) or more easiliy using InsulGard PC software supplied with InsulGard (see InsulGard Software Manual). Eaton supplies monitors preconfigured based on ordering information.



1.3 Specification

General:

Applications HV and MV equipment (motors, including VFD, switchgear, generators, bus ducts, cable terminations, transformers, etc.)

Mounting options (1) In NEMA 4X enclosure. (2) Panel Mount. (3) Door (Flush) mount.

Installation category II

Pollution Degree 2

Temperature Range -400C - +850C (+700C for enclosure mount). UL Certified for 00C - +700C ambient

Relative humidity 0%RH – 90%RH

Maximum Altitude (m) 2000

Power Source 115V / 230V AC +/-10% 60 / 50 Hz

Power Consumption of device (VA max) 15 VA

Display Graphic Dot Matrix Display, 2 lines

Keypad 4 arrows and 4 function keys

LEDs InsulGard Status: Normal Warning (Alarm 1) Alarm (Alarm 2) Memory mode Setting mode

Approximate Size (Length x Width x Height) and Weight:

Main Unit 9.2”x 7” x 2.5” (23.4cm x 17.8 cm x 6.4 cm) 4.2 lb (1.9 kg)

Door Mounted option (Main Unit with Sensor Interface Board)

9.2”x 7” x 4” (23.4cm x 17.8 cm x 10.2 cm) 4.6 lb (2.1 kg)

Panel Mounted option 14.8” x 12.9” x 4” (37.6 cm x 32.8 cm x 10.2 cm) 10.3 lb (4.7 kg)

Enclosure (NEMA 4X) Mounted option 17.2” x 15.4” x 8.8”, (43.7 cm x 39.0 cm x 22.3 cm) 21.6 lb ( 9.8 kg)

PD Measurement:

Number of PD Channels 15

PD Channel Magnitude Dynamic Range 68dB

Frequency Bandwidth 1-20MHz

Phase-Resolved Pulse Height Distribution (PRPHD): Number of Magnitude Windows (3.23 dB each) Number of Phase Windows (150 each)

21 24

Power Frequency at a Monitored Equipment (including VFD)

3-20Hz, 20-400Hz

Synchronization type Internal and External



Maximum Measured Pulse Repetition Rate 367,300 pulses/second

Integral PD Parameters Partial Discharge Intensity (PDI) Maximum Pulse Magnitude (Qmax) Pulse Repetition Rate, Trends of PDI and Qmax

Warning by PDI or Qmax

Alarm by PDI or Qmax and by Trends of PDI or Qmax

Number of Noise Channels 1

Continuous Watch (High PD activity) Function Active between measurements

Data Record Types Full/Brief (Test/Normal)

Internal Data Memory 2 MB. Provides up to 1000 days of data storage at 4 measurements per day

Self-test and Self-calibration At powering up and before every measurement

Setup Configurable from keypad and PC

Allowed RG-58 Coaxial Cable Length to PD Sensors Up to 150ft (50m)

Auxiliary Inputs:

Input specified for temperature measurement calibrated for 100 Ω Platinum RTD sensor.

1

Analog Inputs specified for Current, Voltage or Humidity measurement

2

Interfaces:

C-form Dry Type Relays for: Device Status Warning (Alarm 1) and Alarm (Alarm 2) PD levels (fully configurable).

3 120VAC/ 5 Amps 28VDC/ 5 Amps For other ratings refer to the relay specification

4–20 mA isolated interface represents Highest PDI or Max. Magnitude as % of the Alarm Threshold

Slope is 1mA per 10%

RS-485 interface optically-isolated (231 addresses). Communication Protocol: ModBus RTU, Binary,

Additional Communication Options USB for communication with PC Ethernet, Webpage and FTP

Regulatory and Standards Compliance UL 61010-1: Second Edition Standard for Electrical Equipment for Laboratory Use, with revisions dated 2008-10-28

FCC Part 15, Subpart B, Class A

CAN/CSA C22.2 No. 61010-1-04, Second Edition, with revisions through 2008-10-01

IEC61010-1:2001 and EN61010-1:2001

EN61326-1, EN61000-3-2, EN61000-3-3

IEC61000-4-2, IEC61000-4-3, IEC61000-4-4, IEC61000-4-5, IEC61000-4-6, IEC61000-4-8, IEC61000-4-11

1.4 Important Features and Options

1.4.1 Data Structure and storage.

A Partial Discharge measurement results in Phase Resolved Partial Discharge Distribution (PRPDD)



for every active channel. After each measurement for every active channel, InsulGard calculates integral PD parameters: Partial Discharge Intensity (PDI), maximum PD magnitude Qmax, Pulse Repetition rate (pulses per second) and Trend of PD activity (rate of PDI and Qmax change). The calculated parameters are compared to preset levels for Warning and Alarm operations.

All parameters with date/time stamp are stored in the internal memory for each measurement. Three auxiliary parameters (temperature, humidity, percentage of full load current or operating voltage) are added to each record.

Depending on what data will be stored in the internal memory, there are two modes of the Insulgard operation: Test mode and Normal mode.

Test Mode – during this mode (PRPDD and calculated integral parameters for each channel are stored in the memory for every measurement. This is very memory-consuming mode, can overfill memory too soon, so stored data should be downloaded more often. Test mode saving initiated twice a month by default schedule. Schedule can be changed from keypad or software if necessary. The mode should be enabled for special testing.

Normal Mode –during most of the measurements InsulGard will store the “Brief” version of PD data - only integral parameters without PRPDD (except scheduled “Full’ saving mode measurements). This is a default mode for continuous monitoring.

InsulGard has 2 MB of internal flash memory for data storage. When the memory is filled, the device starts replacing the oldest data with the latest data. The rate of the memory consumption depends upon number of active channels, frequency of measurements, and frequency of PRPDD storage. AIf all 15 channels are active, measurements performed four times a day and PRPDD are stored twice a month, the device holds 17 months of the latest PD data in its internal memory. All stored data and settings can be accessed from the keypad or remotely from a PC.

1.4.2 Trend

InsulGard calculates trend of the parameter – PDI or Qmax. Trend is calculated as a linear approximation of data over a specified time interval (default is 90 days). This specified time interval window is sliding over time while the device is monitoring PD. Trend is normalized to the value of the parameter change in times per year. Like PDI or Qmax levels, trend also has, Warning and Alarm thresholds . When the Warning or Alarm level exceeded, the corresponding LEDs on the front panel and relays will respond in the same manner as when PDI or Qmax levels are exceeded.

1.4.3 Alarms

InsulGard has two configurable alarm levels, Warning (Alarm 1) and Alarm (Alarm 2). There are two groups of parameters that can generate an alarm. One is the preset levels of PDI or Qmax for Warning and Alarm. The other is the preset trend levels for PDI or Qmax. Only one of two, PDI or Qmax, can be configured for alarming at any time.

The same parameter, PDI or Qmax is automatically configured for the 4-20 mA interface output. The 4-20 mA interface always represent the channel with the highest PD activity in terms of percentage of the channel alarm level with the slope 1mA/10%. An output of 4mA corresponds to 0% and 14mA corresponds to 100% of the alarm level.

The alarm level for PDI is represented in terms of mW while the magnitude Qmax is represented in terms of mV.

Trend is set in terms of times per year for both PDI and Magnitude. Alarm on trend is enabled after a training period of 1/3 of the trend-sliding window.



A warning-level condition activates the corresponding relay and turns On yellow Warning LED immediately when warning condition is detected. When Alarm level exceeded, InsulGard will initiate an additional measurement, and only if alarm condition is confirmed alarm relay will operate and alarm LED will lit. If the Alarm conditions are not confirmed, the LED and Relay status will be set per the last measurement. If at any measurement the alarming status will be reduced, InsulGard will indicate the reduced alarming status with both LED and relay.

Alarm and Warning relays can operate in two modes (configurable). Relays lock in the status received at the last measurements, until the next measurement. Or a relay can operate for a limited configurable time and then release the contacts. At the next measurement, if an alarm/warning status is detected, the relay will hold the contacts closed for the same time. There is “never operate” option too (Off).

1.4.4 Continuous Watch Feature

Between the scheduled measurements Continuous Watch feature (High Alarm) is active. All sensors signals are summarized and connected to the separate High Alarm channel. InsulGard is continuously counting high magnitude pulses and series of such pulses with predefined number of pulses in series. If five series of high magnitude pulses detected, InsulGard starts regular PD measurement.

1.4.5 Phase Resolved Data and Phase Reference

In order to provide valid phase-resolved data, InsulGard must be synchronized with a signal that is synchronous with the voltage on the object being monitored. Phase shift between the voltage on monitored object and InsulGard power voltage should be obtained for that purpose.

There are two options for synchronization:

In most of cases the power source (115/230 VAC) powering up InsulGard is used as a synchronization signal. The device has an internal connection of the power circuit voltage to its synchronization circuitry. This option (default) always works on monitored objects powered from a regular power system (60/50Hz) in the area. Phase shift between monitor’s power voltage and the object high voltage should be determined during InsulGard startup and remains valid while the same object is monitored and the same power circuit is used. InsulGard allows for automated detection of a phase shift between its power circuit and an external phase reference signal. For detailed information on synchronization and phase reference shift detection refer to Section 7 Appendix II Synchronization and Phase Reference Shift.

Be cautious of an UPS power – use it only if the UPS has constant phase shift to the voltage in the monitored object in Standby mode. If not, InsulGard will be in an “asynchronous” state and can’t provide accurate phase-resolved measurements..

External synchronization should be continuously used if the InsulGard power supply voltage is not synchronous with the voltage on the test object. An example of an asynchronous test object is a variable frequency drive. An external synchronization signal should be continuously provided to the special synchronization input and appropriate jumpers in the device should be configured. Power frequency component of a signal applied to the channel #1 can be used for external synchronization if coupling capacitor is connected to that channel. For more information on synchronization and device configuration refer to Section 7 Appendix II Synchronization and Phase Reference Shift.

1.4.6 Schedule

PD measurements can be performed at specified times during a day or in specified time intervals. Typically monitors are shipped with “time basis” schedule enabled and set to make measurements four times per day. This is sufficient for most of applications. If necessary, InsulGard can be set to measure up to 50 times per day at scheduled times or in specific time intervals varying from 1 minute to 23 hours



59 minutes as long as the time interval is shorter than the time of the measurement.

The time T required for a measurement is T≈ 21*NCh*NC / F, where NCh – number of active channels, NC

– number of cycles per acquisition, F – synchronization frequency. Thus an InsulGard with all 15 channels active set for 60 cycles per acquisition and synchronized by 60 Hz would require 21*15*60/60=315 seconds, or 5 minutes and 15 seconds to complete a measurement.

1.4.7 Self-test and Self-calibration

InsulGard performs a self-test and calibration of PD signal and noise channels when powering up as well as before every PD measurement. If self-test fails the status relay contacts will open and a corresponding message will appear on the display.

1.4.8 PD Intensity and PD pulse repetition rate calculation low level cut-off

PDI and pulse count (PPS - pulse per second) are calculated for each channel at every measurement starting from some preset magnitude level (zone) and up. This feature allows for rejecting background noise from affecting PDI and pulse count calculations. Low magnitude calculation cutoff threshold can be set for each channel independently, based on its own background noise level, if any. There are options to set these values manually or automatically. Automatic low magnitude threshold detection can be launched only from the keypad (commonly during device start up or during the initial period of operation).

1.4.9 Auxiliary Inputs

It is well known that operating conditions of monitored equipment can significantly affect PD activity. Dependence of PD magnitude, repetition rate and PD intensity on temperature, humidity, system voltage and load current (in rotating machines) can provide valuable information for deeper analysis and increase diagnostic capabilities of PD monitoring. Calculation of correlations between PD parameters and operating conditions is a part of InsulGard software.

InsulGard has three auxiliary inputs. One of the inputs is solely designated for temperature measurement. A 100 Ω platinum RTD can be used as a sensor. See the temperature sensor manual for details.

Two other inputs can accept any AC or DC signals within a specified voltage range. As factory default, they are configured for auxiliary sensors for load current and humidity measurement supplied by Eaton with an InsulGard.

1.4.10 Measurement Suspend

Measurements can be suspended in three different ways:

Monitoring can be stopped. The “STOPPED” message will be blinking on InsulGard display and Red Alarm LED will be ON. Monitoring must be resumed through keypad operation or software “Resume” command by an operator.

Monitoring can be paused by software “Pause” command. In this case, monitoring will resume automatically in three hours.

Auto-suspend mode - can be controlled by any of three auxiliary parameters. The device allows an user for setting low and high thresholds for these three auxiliary parameters and enable the auto-suspend mode via keypad or via PC software. InsulGard will stop monitoring when any enabled auxiliary parameter is outside low - high boundaries range. The auto-suspend mode mostly used to suspend measurements in rotating machines by load current measurements when the machine is out of operation. For example, if low threshold for load current is set to 5% of the nominal current,



InsulGard will stop making measurement when load current is 0 – means that the monitored equipment is out of service. This keeps InsulGard from collecting meaningless data which can lead to incorrect trend calculations.

1.4.11 Communication Options and Device Address

InsulGard has various interfaces that allow for easy implementation into any alarm or SCADA system as well as for remote communications:

Three C-form relays dry contacts for Warning (Alarm 1), Alarm (Alarm 2) and Device Status indication.

4-20 mA isolated interface can be configured to represent PD Intensity (PDI) or Maximum PD magnitude (Qmax) to any SCADA system.

RS-485 optically isolated interface based on ModBus RTU protocol allows remote device configuration and data downloading. InsulGard can be networked with an existing ModBus network, allowing for up to 231 addressable devices.

InsulGard is shipped with the device address #1, otherwise different address was specified. The address can be changed only from the keypad and set to 1 - 231. In any case, the address must be unique in a particular local device network.

InsulGard is supplied with database software that allows automated communication with a device for data acquisition and analysis. The software allows either direct networking using a USB/Ethernet to RS485 converter or dial up connection to a device by a regular telephone landline or a cellular connection using appropriate modems with RS485 interface.

USB ports (only available with communications board): one USB port (Device) is for a direct link to a computer for communications with the InsulGard software or for communication board firmware upgrading, second USB port (Host) is reserved for future use.

Ethernet port (only available with communications board): It enables direct communication between computer and InsulGard and implementation into Ethernet network. Convenient online webpage and FTP server for data downloading or FTP client for data uploading are under construction.

Telephone landline or cellular modems with RS485 interface are optional.

Refer to section 4.3.3 for detailed information regarding connections between the InsulGard and external equipment.

1.4.12 Software

InsulGard software allows for communicating with InsulGard through a PC on a local RS-485 network or a modem. It also provides automated or manual data downloading and storage for multiple devices, device setting, data analysis, and presentation (See InsulGard Software Manual).

1.4.13 InsulGard configuration (settings)

To get most of PD monitoring InsulGard have to be properly configured in accordance with the type of equipment to be monitored, system voltage, sensors used and preferable mode of monitoring. InsulGard is typically supplied preconfigured for particular equipment in accordance with available information received during ordering process.

Monitor configuration can be adjusted by changing firmware settings:



From InsulGard keypad (see Section 6 Appendix I InsulGard Front Panel Keypad Operation ),

From computer with help of software supplied with InsulGard monitor. The software has templates to help with configuration for typical applications (see InsulGard Software Manual).

There are few settings that can be configured only through the keypad. Refer to Section 4.1 for details.



1.5 InsulGard mounting options and sensor connection InsulGard is can be shipped in one of the following configurations:

In NEMA-4X enclosure with or without transparent windows for outdoor installation(Figure 1-2 a).

On the panel (Figure 1-2 b) for installation in a cabinet. This option is identical to the first one, except that the panel is not mounted into an enclosure. Can be mounted into any custom cabinet including explosion-proof enclosure.

Door mount option. This option is used for indoor installation on a cabinet door (Figure 1-2 c, d, e). For door mount InsulGard Sensor Interface Board is mounted on the InsulGard back cover with temperature and humidity sensors typically installed inside Sensor Interface Board.

a

b

c

d

e

Figure 1-2 a, b – IG installed on the panel and in NEMA 4 enclosure with window; c – Door mount InsulGard, Sensor Interface Board is installed on the back of the InsulGard case, d, e - Door mount IG installed on a switchgear cabinet door (d - front and e - rear views)



1.5.1 Panel mount InsulGard

An example of a panel mounted InsulGard and its wiring diagram for 115 VAC power voltage is shown in Figure 1-3 a, b, c and Figure 1-4.

The InsulGard panel must be grounded at the place of its installation.

a - Front view.

Wire for panel grounding



b - Left side view.

c - Right side view

Figure 1-3 Panel mounted InsulGard



There is no outlet for 230VAC application.Fuse inside InsulGard for 115VAC application:Time-Lag 200mA, 250VAC, 5X20mm type 5ST by BEL Fuse Inc.,Catalog # 5ST 200.Fuse inside InsulGard for 230VAC application:Time-Lag 100mA, 250VAC, 5X20mm type 5ST by BEL Fuse Inc.,Catalog # 5ST 100.Fuse on the panel: Fast Acting 3.0A, 250VAC, 5x20mm type 5MF by Bel Fuse Inc. Catalog # 5MF 3-R (or equivalent).

3

InsulGard Panel Wiring Diagram Connection to:

Co

nn

ecto

r fo

r F

lat

Cab

le f

rom

Ins

ulG

ard

Co

ax c

ab

les

fro

m P

D S

enso

rs

Ch1

Ch 2

Ch 4

Ch 3

Ch 5

Ch 6

Ch 8

Ch 7

Ch 9

Ch 10

Ch 12

Ch 11

Ch 13

Ch 14

Ch 16(Noise)

Ch 15

Sen

sor

Inte

rfac

e B

oar

d

RTD

CT

H%

S

+5

S

Ref

5

S1

S2

6

7

89

1011

12

43

2

1

Signal

Shield

H% RefSw

Ground Screwon the panel

Ground screw on enclosuremust be connected to local

ground

red

white

white

white

red

black

black

black

Humidity sensor

CT - Load sensor

Temperature sensor

Auxiliary sensorconnection:

green

Power 115VACN

eutr

al

Gro

un

d

Ph

ase

1

InsulGard'sconnectors

Fla

t C

able

to

Sen

sor

Inte

rfac

e B

oar

d

Ala

rmW

arn

ing

+

4-2

0m

AA

larm

2G

LN

Po

wer

-+

5G

BA

RS

- 4

85S

tatu

sA

larm

1

DIN-Rail Terminals

Eth

ern

etD

evic

eH

ost

US

BU

SB

4-20 mA interface

RS485 interface

Alarm relay

Warning relay

Status relay

greenG

reen

redwhite

Screw onback cover 2

Leftside

Rightside

NL

Gn

d

Gn

d

Fu

se

Outlet

Figure 1-4 A typical wiring diagram of the panel mounted InsulGard.

Note: For actual installation use the wiring diagram supplied with each InsulGard.

InsulGard must be grounded at the place of installation.

Power line should be connected to the terminals installed on Din Rail as shown on Figure 1-4.



Connection to Status, Warning and Alarm relays, to RS485 and 4-20mA interfaces should be made directly to InsulGard in accordance with the labels on its right side by using plug-in connectors supplied with an InsulGard (Figure 1-3 c). Right connections to these plugs shown below:

PD and Auxiliary sensors must be connected directly to the Sensor Interface Board. To access Sensor Interface Board it is necessary temporally remove the InsulGard monitor.

Coaxial cables from PD sensors should be connected to Ch1-Ch15 inputs (Figure 1-5 a). Central wire should be connected to an upper terminal and coax cable shield to a corresponding lower terminal labeled on 1st channel (Figure 1-5 b.). Ch16 is designated only for noise signal and usually isn’t used.

a

b

c

~1"

~0.3"



d - IDEAL part#45264 STRIP MASTER

e

Figure 1-5. a, b - termination of PD sensors coax cables to the Sensor Interface Board, c – cable preparation, d – recommended stripper for RG58 cable, e – Humidity/Phase Reference Switch.

Use blade crimp terminals on cable shield to avoid “hairs” and possible short circuit to the central wire. Distribute cables evenly and secure them in place with cable ties.

Auxiliary sensors (Temperature, Humidity and Load sensors) should be connected to the 12 contacts terminal on the left side of the Sensor Interface Board as shown in Figure 1- 6 and table below.

Figure 1-6. Auxiliary sensors connection to the Sensor Interface Board.

Cables from:

Temperature sensor

Load (CT) sensor

(for motors)

Humidity sensor



Auxiliary sensors connection:

Contact

# Sensor

connected Sensors wire Note

1 Temperature sensor 100 Ohm Platinum RTD

RTD common wire (white wire) Board common

2 RTD signal wire (black wire) Output dc current ≈ 2mA

3 RTD signal wire (red wire) Output dc current ≈ 2mA

4 Cable shield (optional) Board common

5 Load (CT) sensor

Signal wire (red wire) Input impedance 100 Ohm,

6 Common wire (black wire) Board common

7 External Reference

Usually not used Input impedance > 27kOhm. Input voltage should not exceed 1VAC. Disconnect jumper 1 if external reference signal is used (Figure 1-7).

8 n/a test point

9 n/a Board common

10 Humidity sensor

Sensor common (white wire) Board common

11 + 5VDC for the sensor (red wire) Output current is limited by 100 Ohm resistor.

12 Output signal (black wire) Input impedance > 27kOhm. Input voltage should not exceed +5V.

H% / Ref switch (Figure 1-5 e and Figure 1-7) must be in the H% position during normal operation. Ref switch position is used only during phase shift measurement – phase difference between external reference signal and internal IG synchronization (Section 7 Appendix II Synchronization and Phase Reference Shift). After that measurement switch must be switched back to the H% position.



1.5.2 Door mount InsulGard

In door mount InsulGard version Sensor Interface Board is mounted on the InsulGard back cover (Figure 1-7)

Figure 1-7. Door (Flush) mount InsulGard (back view)

InsulGard must be grounded at the place of installation.

All PD and auxiliary sensors should be connected directly to the Sensor Interface Board as for panel mount InsulGard (see section 1.5.1). All other connections also are same with panel mount InsulGard except power line connection. It should be connected directly to InsulGard power input in accordance with its side label using green plug connector. Power line should have a disconnect device (switch/breaker) near the unit.

Also for door mount InsulGard the temperature and humidity sensors are usually installed inside Sensor Interface Board. Jumpers J7 & J8 must be installed in that case.

Notes:

Wire to local ground

Jumper J1

Jumpers J7 & J8

H% / Ref Switch



Jumper 1 (Figure 1-7) must be removed if external reference signal (e.g. from potential transformer) applied to contact #7 on Sensor Interface Board (Section 7 Appendix II Synchronization and Phase Reference Shift).

1.6 Sensors for InsulGard Wide variety of sensors for InsulGard monitor is manufactured by Eaton Corp.

Basic sensors are:

IPDS - Integrated Partial Discharge Sensors with voltage ratings 5-38kV - 80pF coupling capacitors with special protection circuitry built in.

RFCT - Radio Frequency Current Transformer.

RTD-6 - PD sensor. Resistive Temperature Detectors installed in a rotating machine stator work as a local RF antenna for PD pulses. This sensor connects up to 6 RTDs to capture PD signals originated in a stator winding. It designed as a single board replacing an existing RTD terminal board and does not affect temperature measurements.

IPDS RTD-6-PD RFCT

Figure 1-8 PD sensors

The auxiliary sensors:

TS - Temperature sensor - 3-wire 100 Ohm platinum RTD in protecting shell. For rotating machines using spare 100 Ohm platinum RTD in stator winding is preferable.

HS - Humidity sensor.

CT - Load (CT) sensor. 5 Amps primary current, ratio1000:1. Mostly used for rotating machines. It should be installed over secondary wire of an existent metering current transformer.

CTF - Split-core Primary Current Transformer (FlexCore) with CT sensor preinstalled on shortening jumper of Primary CT secondary winding. CTF used if there is no metering CT in feeder termination compartment and corresponding metering CT is too far from InsulGard. Install CTF around a feeder cable of any phase in a motor feeder termination enclosure. It must be installed over the shielded part of the feeder cable with cable shield grounding wire coming through the CT. In case of several feeders per phase install CTF only around one of the feeders.

All above sensors have default cable length of 65’ (20m). Specify other lengths if necessary. See the sensor manual for detailed information.



2 Applications

2.1 General InsulGard is a versatile device that can be applied to most of medium and high voltage equipment. Specifics of a particular application (optional components and planning installation) should be taken into account to achieve high performance of PD monitoring.

Issues that should be considered are:

Type and specifics of equipment to monitor

Configuration of PD sensors

Noise aspects

Device location and environmental issues

Additional parameters to measure

Networking and Communicating to the device

Equipment with voltage ratings of 3kV and higher are considered reliable for PD diagnostic applications. Marginally, 2300V equipment can be considered, but the technology is inconclusive. It may or may not detect a significant problem at 2300V. In general, higher voltage provides greater destructive power for partial discharges and problems can be more reliably detected and predicted.

InsulGard was designed to monitor partial discharges in any MV equipment. Most frequent applications are in rotating machines, medium voltage switchgears, MV transformers and associated auxiliary equipment and connections. The connections may include cable terminations and portions of a cable or a bus feeding a device. InsulGard can also be used on other types of medium voltage and high voltage equipment. Particular applications of the technology may require special pre-engineering and adaptation. Consideration should be given while attempting to use InsulGard on high voltage equipment above 120kV. Noise in the form of aerial corona discharges should be addressed in such cases.

PD sensors configurations are application oriented, although there are some general guidelines can be applicable. Request Install Consideration and Sensor manuals documentation or/and discuss sensor installation with an Eaton Electrical application engineer.

2.2 Motor and Small Generator Applications PD sensors for small generators and medium voltage motors typically include three sensors located at the line terminals and one or two RTD-PD sensors servicing six to twelve winding RTDs. Because of significant attenuation of high frequency signals in a motor winding, sensors located at the line terminals will not detect partial discharge in a winding depth; likewise, the sensors located in winding far from HV terminals will not sense discharges at the line terminal.

2.2.1 PD sensors at line terminals:

Coupling Capacitors. Typically Integrated Partial Discharge Sensors (IPDS) by Eaton with 80pF capacitance, but can use any kind of coupling capacitors. IPDS have sufficient insulation and connected directly to a motor line terminals. Those sensors exhibit the most noise-immune characteristics due to their low capacitance and, therefore, can suppress most low frequency noise by themselves. Using IPDS is a highly recommended option for line terminals.

Note: Installation of line terminal sensors always requires an outage.



Radio Frequency Current Transformers (RFCT) placed on incoming feeders’ shield grounding conductor (one per phase) or on single-phase surge capacitor grounding conductor (one per phase). Using a single three-phase surge capacitor is possible, but not recommended because of low sensitivity to phase-to-phase partial discharge. The later is also valid for RFCT sensors on three phase feeder shield ground single wire. An advantage of RFCT sensors is that they are non-invasive (no connection to HV conductors is required). But RFCT sensors are less noise immune compare to IPDS sensors and more vulnerable to ground network noise. RFCT absolutely should not be used in Variable Frequency Drives environment with high magnitude and repetition rate pulse noise.

2.2.2 RTD sensors in winding depth

Besides line terminal area sensors, additional sensors are required to service larger area of a stator winding. RTD sensors embedded into a stator windings can be used for this purpose. An RTD supplies a DC temperature signal to a metering device. An RTD and RTD wires also operate as a RF antenna for high frequency signals generated by partial discharge. High frequency signals can be extracted and used to for detection of pulses originated by partial discharge in proximity of an RTD.

Eaton developed the RTD-6 PD sensor board with embedded filters to suppress external noise coming from temperature metering system or induced in control wiring by other equipment. This sensor is designed as a single board to replace an existing RTD terminal board in the closest to a motor/generator RTD terminal box. It does not affect temperature measurements, and extracts PD signals to be detected by InsulGard. Each board can handle up to six RTDs. If there are more than 6 RTDs, additional RTD -6 PD sensor board should be used. An RTD-6 board can be installed online which requires temporarily disabling temperature alarm or relay system.

2.2.3 Auxiliary sensors

Partial Discharge activity significantly varies with operating parameters. Winding temperature, load current, and humidity are the three most important parameters to correlate with a detected PD activity. Correlation of the detected PD activity with those parameters can provide invaluable information for enhanced diagnostics of insulation condition in a monitored equipment. Preferably use one of the winding RTDs for temperature measurement.

Note: One InsulGard device is required for a monitored object.

2.3 Large Generator Applications Large generator application is, in general, similar to a motor or small generator application.

2.3.1 PD sensors at line terminals:

Coupling capacitors (IPDS) are commonly used as line terminal sensors. A generator equipped with iso-phase bus duct might have sparking in bus supporting insulators. A digital filter has been built into InsulGard firmware to distinguish that specific external PD activity from PD activity coming from a generator. Another option is using two sets of IPDS located at the terminals and at some distance along iso-phase bus for noise suppression.

2.3.2 RTD sensors in winding depth

Large machines can have several dozens RTDs embedded in the winding. Use 12 RTDs located in most electrically stressed parts of the stator winding, and evenly distributed along the stator winding to obtain maximum coverage of the stator. Making that choice can be a challenge even when winding diagram and RTD locations are available.



Large generators may have very long signal wires from an RTD to the first RTD termination. Also different kinds of RTD wires can have different signal propagation qualities. These factors can significantly affect high frequency signal propagation, attenuating a PD pulse. In order to minimize signal attenuation; RTD-6 board can be installed at the generator gland, where the RTD wires come out of the generator frame.

Certain generators do not have RTDs embedded into a stator winding. For example, large Westinghouse hydrogen cooled machines have RTDs only in cooling gas pipelines. These RTDs cannot be used as PD sensors. Verify that RTDs are located in a winding.

Auxiliary parameters are monitored in large generators same way as in motors. In hydrogen cooled generator hydrogen pressure might be monitored instead of humidity.

2.4 MV Switchgear Applications Door mount InsulGard option commonly used in indoor switchgear lines.

2.4.1 PD sensors

Three major types of PD sensors are used for switchgear lines:

Three IPDS sensors (one per phase) are installed, as a rule of thumb, in every third cubicle. Therefore, each set of three IPDSs assess the cubicle where it is installed, and the cubicles on each sides. Increasing a distance between IPDS sets might cause some distant PD activity to be missed. Keep in mind that PD signals attenuate approximately twice from cubicle to cubicle. IPDS can be installed on a bus side or load side of a breaker. In the case of a load side, the sensor will not measure PD while the breaker is open, but can be installed without taking the whole bus out of operation. Installation on main bus requires full outage, but fewer sensors to service switchgear line. In general, one InsulGard can handle a switchgear line with up to 15 cubicles.

RFCT sensor(s) installed on the incoming and outgoing feeder shield grounding conductors; commonly, one per cubicle on all three phase feeder shield ground cable. Phase to phase signals can be missed in such a configuration. Installing three RFCT sensors (one per phase) can be considered for most critical feeders. RFCT sensors on cable shields are susceptible to ground noise and not applicable in high noise environment, particularly with FVD drives.

Combination of RFCT and IPDS sensors can make most effective sensor configuration. Consider more sensors in proximity of most critical parts of a line-up.

Eaton Corporation came up an idea and has implemented usage of stress shields in MV bushings in switchgear as coupling capacitors. Eaton manufactured switchgear can come equipped with PD monitoring system as an option. Consult Eaton application engineers on this opportunity.

2.4.2 Auxiliary sensors

Temperature and Humidity should be monitored in switchgear application. By default for door mount InsulGard in indoor applications temperature and humidity sensors are incorporated into sensors Interface Board. External sensors will be shipped if requested. If high voltage in the system can vary more than +/-5%, one can consider monitoring of that voltage too. That option requires reconfiguration of the jumpers on the Sensor Interface Board and changes in InsulGard and software settings.



2.5 Configuration of Alarm Thresholds The Warning and Alarm thresholds for each PD channel of InsulGard are configurable. Thresholds depend on the type of PD sensor used (sensor sensitivity), system voltage, type of equipment, sensor location and adjacent connections. There are no universal standard values for Warning or Alarm thresholds. The following table shows typical values of the thresholds used as default settings in several applications:

Application

Sensor type PDI, mW Q MAX , mV

Object type U line, kV Warning Alarm Warning Alarm Switchgear < 5 kV Coupling capacitor,

RFCT 3 5 50 100

5 -17 kV 3 10 50 200 >17 to 38 kV

5 20 50 200

Motor/ Small Generator

3 - 7 kV Coupling capacitor, RTD-6 PD sensor

3 5 50 100 7-15 kV 20 50 200 1000

Generator >15 kV 20 100 200 1000

Since PD measurements in high frequency range are relative in nature, warning and alarm threshold should be corrected in every given case after initial period of monitoring and subsequent data analysis.

Simple rule of thumb can be used: - in case of significant PD activity set warning threshold close to average level of PD activity, set alarm threshold a little below peak values of the detected PD activity, so that threshold will be exceeded infrequently and phase resolved data will be saved during such events;

- if PD activity is low, set warning level higher then peak readings and set alarm threshold twice higher then warning threshold.

2.6 Noise Aspects Noise is a major issue in partial discharge measurement in industrial environment. Noise is site-related. There is no universal solution for noise suppression in modern state of technology, however most noise issues can be overcome. InsulGard has been designed with several noise suppressing algorithms and, along with recommended sensors, is able to suppress most of industrial noise. While planning InsulGard installation, keep in mind most common noise sources:

Pulse signals coming from incoming lines and feeders

PWM power sources for VFD drives (RFCT sensors can’t be used on feeders in such environment)

Power thyristor firing

Switching power supplies in modern metering and protective electronics

Arcing and sparking somewhere at the facility

Aerial corona on overhead lines on high voltage substations

Partial discharges in the adjacent equipment



Ground network noise

High frequency noise from TV, Radio and communication transmission.

In some cases the source of noise can be identified and additional noise sensor(s) can be connected to the Noise channel to reject that noise from PD measurements.

2.7 Device Location and Environmental Issues InsulGard can be shipped with or without an environmental enclosure. Without an enclosure, it can be used indoors in a relatively clean environment.

In most applications, indoor or outdoor, InsulGard comes in NEMA-4 plastic enclosure protecting the device from direct rain, sun, and dust. Use stainless steel enclosure in chemically aggressive environment. Explosion proof enclosure might be required in special cases.

In an indoor switchgear lineup InsulGard can be door mount without an enclosure.

When planning installing InsulGard, consider a non-vibrating location, conveniently located in a centralized position close to all sensors, control power line and communication lines (phone jack, conduits/tray to control room for alarms, etc.). It is recommended to keep the length of PD signal coaxial cables (50 Ohm RG58 or similar) as short as possible to decrease signal attenuation along the cable. Recommended maximum length is 150’, but it is not a solid limitation.

2.8 Additional Parameters to Measure Several factors can affect PD activity: temperature, humidity, voltage, mechanical vibration, etc. In North America system voltage commonly is not an issue. It is stable and does not affect PD significantly. If more than +/-5% voltage variation is expected, the voltage should be monitored and correlated to PD activity. Temperature is very important parameter for PD diagnostics of an insulation condition. Temperature variations change size of voids in solid insulation and surface conductivity which subsequently cause changes in PD activity. Humidity is also a factor affecting partial discharge, mostly through changes in surface conductivity, especially if combined with surface contamination. In hydrogen cooled machines monitoring of hydrogen pressure may be more beneficial than monitoring humidity. Changes in Load current affect vibration of coils in rotating machines and cause changes in slot and end-winding discharges. Correlation of PD activity changes to operating parameters can help distinguishing different types of partial discharge improve diagnostics capabilities and direct corrective measures.

Also zero load current (or voltage) could be used to suspend monitoring during equipment outage.

2.9 Networking and Communicating with InsulGard InsulGard equipped with several interfaces allowing for implementation of a monitor into a control system or into instrumental network:

Dry contact C-form relays can provide warning, alarm and monitor status signals to an annunciator or to SCADA system. Always wire at least Alarm (Alarm 2) and Status relays to an annunciation system. If necessary, all relays can be wired in series or in parallel to the same annunciator.

4-20 mA interface provides output current proportional to PD activity in PD channel with the highest PD activity in percentage to that channel alarm level. That signal can be wired to a SCADA for trending.



RS485 interface – allowing an InsulGard to be implemented into instrumental network with up to 251 devices on network. With the interface a device can be implemented into a SCADA system. Device settings, measurement control and data downloading can be done through that interface. RS485 to USB and RS485 to Ethernet converters can be used for communication with local PC or on Ethernet network. Optional communications board has incorporated USB and Ethernet interfaces eliminating needs for converters.

Through the Ethernet port of the optional communications board one can access internal Web page and data can be downloaded through the FTP server (both are under construction). It also can be configured as a virtual serial port to be accessed by the InsulGard software.

Using Landline or cellular modems (optional) provides opportunity for full scale remote communication to an InsulGard or to InsulGards’ network.



3 On-Site Installation USE Startup manual step-by-step procedures as guidelines in actual installations and checking and commissioning.

3.1 InsulGard system content

InsulGard monitor Item Description Comments

InsulGard monitor in enclosure, or panel mount or door mount

Specify mounting option and power voltage 115 VAC or 230 VAC. Preconfigured for internal synchronization (by default) or for external synchronization (Variable Frequency Drive applications)

Sensors Interface Board Preconfigured for internal synchronization (by default) or for VFD application (by request). Temperature and Humidity sensors may be installed inside the board (by default for door mount version)

Communications Board Assembled inside InsulGard

115VAC, 10 A receptacle Included for 115VAC power. Not included for 230VAC power and in door mount version

Blade Terminals For termination of the coaxial cable shields

Wiring diagram Monitor connections and fuses specific to the monitor

Software CD with software and manuals for the InsulGard and sensors

Manuals Hardcopy

Partial Discharge sensors IPDS-XX 80 pF XX kV class (5-38 kV) three coupling capacitor set with

mounting kit, 15kV class jumpers and miscellaneous hardware

RFCT-075 Solid core Radio Frequency Current Transformer with 0.75” opening. Supplied with solidly connected 65’ coax cable

RTD-6 RTD PD sensor board for rotating machine applications

Auxiliary sensors TS - 3-wire 100 Ohm RTD External Temperature sensor with 65’ cable

HS External Humidity Sensor with 65’ cable

CT Load Current Sensor with 65’ cable (5 Amps primary, ratio 1000:1)

CTF Split-core Primary Current Transformer (FlexCore) with Load Current Sensor and 65’ cable. Convenient to install in a motor termination box. Specify current ratio when ordering.

Communication means Land Line or Cellular Modem with power supply

Optional

RS485/USB converter or RS485/Ethernet converter with power supply module

Optional

Coax cable RG58 coax cable In 500’ or 1000’ reels considering default coax cable length 65’ per

PD sensor

Additional not included cables maybe required:



AC power cable 3-wire (11 Amps)

Twisted pair cables (AWG16-20) for communication

For communication and auxiliary sensors we recommend tray cables from Allied Electronics:

Twisted pair:

Stock # 216-2722 (22AWG) by BELDEN Mfr’s #9322

Stock # 216-2724 (20AWG), by BELDEN Mfr’s #9320 (Preferable for communications over 1000ft)

Stock # 216-2660 (20AWG), by BELDEN Mfr’s #1033A

Shielded 3-wire cable (if T<800C),

Stock # 216-2738 (22AWG), by BELDEN Mfr’s #9363

Stock # 216-2740 (20AWG), by BELDEN Mfr’s #9364

Stock # 216-2666 (18AWG), by BELDEN Mfr’s #1036A

One may order these cables through EE PD. Additional RG-58 coaxial cables can be ordered through EE PD in 500’ or 1000’ reels.

3.2 InsulGard system packages For ordering convenience a PD monitoring system can come in standard packages for a particular application:

Package for switchgear

Package for motors

Package for generators<15kV

Package for turbo-generator 16-27 kV

Package for hydro-generator <15 kV

Consult to Eaton sales and application engineers for details

3.3 Important Note on Sensor Installation InsulGard monitor comes preconfigured to our best knowledge. If not configured properly use templates in software for typical configurations to configure most of parameters with few necessary corrections after. These templates assume that all coupling capacitors are connected to the first PD channels in ABC order. In rotating machines RTD sensors come after coupling capacitors in incremental RTD number order. Following this rule while connecting sensors to a monitor will simplify configuration later on. For switchgear application first connect all coupling capacitors to the first PD channels in ABC sequence, then connect RFCT sensors. Refer to Install Consideration documents for typical applications.

3.4 Step 1 - Hardware Installation This section provides general guidelines. Each installation may have its own specifics. Refer to



sensors manuals for installation.

Select a convenient location for the InsulGard enclosure. It should be as close as possible to the equipment being monitored. Avoid locations with excessive vibrations, heat and direct sun light. Cable length from PD sensors, generally, should not exceed 150ft (50m). It is usually convenient to install the device in the center of PD sensors locations, keeping PD signal cable lengths approximately the same. It is not necessary to have cable lengths exactly the same.

Take monitor from the panel: gently disconnect InsulGard green plug-in connectors from right side and flat ribbon cable connector from the sensor interface board, unscrew 4 mounting screw from faceplate and remove the monitor.

Install InsulGard enclosure.

Door mount monitor can be installed into the cut in a cabinet door.

Run conduits (if necessary) for the cables for PD sensors, communications, alarm relays, 4-20 mA interface and for the InsulGard power.

Install Partial Discharge sensors. Follow corresponding installation manual for the sensors.

Install Current Sensor on the secondary wire of a metering current transformer. Phase A is preferred, but is not necessary. In absence of a metering CT in feeder termination box use an easy-to-install primary Core CT over feeder cable. Refer to CT, HS &TS sensors manual.

Install temperature sensor (if ordered separately) inside the switchgear at a suitable location closely representing the inside temperature. A rear compartment at the middle of a lineup usually works well for that. In the case of a motor or generator, preferably use one of the spare winding RTDs (Platinum 100 Ohm). Run three wire shielded cable from that RTD to InsulGard monitor. Otherwise locate the temperature sensor at a suitable location closely representing the stator winding temperature.

Install humidity sensor (if ordered separately) inside a switchgear at a suitable location closely representing inside humidity (next to the temperature sensor). In the case of a motor or generator, humidity sensor typically installed inside feeder/bus terminal enclosure to represent humidity in line terminals area.

Install communication equipment: RS485 converters, modems, Ethernet, power supplies (ordered separately). Run communication cables. Several InsulGards can be networked together via RS-485 network, using one modem or Ethernet converter for all of them.

When networking several InsulGards together via RS-485, use a daisy-chain configuration. The chain can be terminated with a 120 Ohm resistor at the end if necessary.

Run all cables into the InsulGard enclosure. Leave at least 2’ of excess cabling in the enclosure for easy terminating.

Note: Label all cables on both ends!!!



3.5 Step 2 - Sensors and Power connections

Connect coax cables to all PD sensors according PD sensor installation manual.

Important note

Connect coax cables to IPDS sensors properly: central wire to Signal terminal and shield to Shield terminal using supplied ring connectors. Swapped central and shield can’t be corrected after equipment will be energized, there will be no output signal. As a temporary measure one can swap central wire and shield at the sensor interface board, but it will give more noise. Sensor cable connections are not user accessible after installation.

Connect PD sensors coax cables to InsulGard sensor interface board in proper sequence. Refer to software settings and related information in the Questionnaire filled in ordering process.

Connect temperature, humidity and load sensors to the monitor in accordance with the supplied wiring diagram.

Run and terminate InsulGard power cable to a designated breaker or fuse block. Verify that there is no voltage at the source for safe work. Provide a disconnect device near the unit during installation.

3.6 Step 3 - Monitor Installation and Final Connections

Check proper sensors connections with a multi-meter. Use the detailed check-list from the Startup manual.

Install InsulGard and fasten it to the standoffs with the screws (enclosure/panel mount option).

Connect flat ribbon cable from InsulGard to the Sensor Interface Board. Make sure that two connector latches are locked.

Replace green plug-in connectors and connect communication lines.

Switch InsulGard power On. “Loading” and firmware version should appear on the device display. Device is now ready for setup and operation.

Verify that signal wires and power are connected to the modem or/and converter. They typically have LEDs indicating power ON.



4 Startup Use Startup Guideline document for PD system installation/verification and practical Startup procedure.

4.1 General InsulGard setting can be done from the front panel keypad or from a PC using InsulGard software via the RS485 port or USB port on the optional communications board. For software settings please refer to the Software manual.

Setting the device from a PC is easier, but few settings can be changed ONLY from keypad. These are parameters or procedures that must be set at the factory or during installation/startup:

Device address on a network (preconfigured)

Baud Rate (preconfigured)

Phase Shift detection (startup procedure)

Current / Voltage channel calibration (startup procedure)

Low Noise detection/setting (startup procedure, rare used)

Communication protocol - ModBus RTU(default) or Modbus TCP (rare used)

Frequency Range (default range 20-400Hz, change only for 3-20Hz application)

Temperature channel calibration (calibrated at the factory)

4.2 Quick setting via the monitor keypad InsulGard is pre-configured at the factory for a particular application in accordance with the information received during ordering process. In most case only phase shift measurements and load current channel calibration should be performed in field. Setup procedure below describes steps that can be done during typical installation/commissioning. Specific applications might require some additional procedures.

The table below lists steps for device settings from monitor’s keypad with reference to more detailed description of the keypad operation. Parameter or Procedure

Function and Reference to Appendix Action

Enter Setup Mode

Password protected access to the monitor settings (Set). Your password is 5421 (6.1)

Press Set key. Enter 5421 password by using and to move to different digits and and to change the value. Press Enter. Wait about 20 seconds until dashed lines will disappear and Set Date displayed.

Set Date Set date. Note: setting date/time earlier than the date/time of the last saved measurement data causes Clock Error Alarm. (6.2.1)

Press Enter. Use and to move to different digits and and to change the value, then press Enter.

Set Time Set time (6.2.2) Press to move to Set Time, press Enter. Use and to move to different digits and and to change the value, then press Enter.

Device Address

Set unique Modbus address. Stand alone device has default address 1. (6.2.16)

Use and to scroll to Set Device Address. Press Enter. Use and to move to different digits and and to change the value and then press Enter.

Rated Voltage

Voltage is used in PDI calculations. Must be set before voltage channel calibration. Set voltage, Escape from Set Mode, then enter Set Mode again for calibration if necessary. (6.2.10)

Use and to scroll to Set Rated Voltage. Press Enter. Use and to move to different digits and and to change the value and then press Enter.



Rated Current

Enter rated current – must for Load Current monitoring. Should be set before current channel calibration. Escape from Set Mode, enter Set Mode again for calibration if necessary. (6.2.11)

Use and to scroll to Set Rated Current. Press Enter. Use and to move to different digits, use and to change the value and then press Enter.

Activate Channels

Activate PD channel that will be used for monitoring. It is preferable to activate only the necessary channels and leave all the rest inactive. If none of channels is active, the device will not start a measurement. The Noise filter normally should be On.(6.2.3)

Use and to scroll to Set Active Channels. Press Enter. Use and to choose a channel, use and to switch between On and Off. Press Enter. Noise Filter will be displayed. Use and to switch between On and Off. Press Enter.

Channel Sensitivity

Rarely used. Use default setting 3 nC/V for IPDS sensors; 10 nC/V for RTD (3nC/V for new RTD sensor) and 5 nC/V for RFCT sensors. (6.2.5)

Skip. Otherwise use and to scroll to Set Channel Sensitivity. Press Enter. Use and to choose a channel, press Enter, use and to switch between digits, use and to change the value, press Enter. Press Esc to get to other channels, or press Esc again to leave Sensitivity menu.

Channel Phase

Set associated phase for all active channels or leave phase A. The setting will not affect measurement – only data presentation in software. Can be changed in software. (6.2.22)

Use and to scroll to Set Channel Phase. Press Enter. Use and to choose a channel, use and to switch between A, B, C AB, AC and BC, press Enter.

Parameters to Display

Set parameters to be displayed on screen. (6.2.4)

Use and to scroll to Set Parameters To Display. Press Enter. Use and to choose a parameter, use and to chose On/Off. Press Enter when finished.

Set Channel Low Magnitude Limit

Rare used procedure. Will determine Low Magnitude Limits for PDI calculation for each channel. May be useful in high repetition low magnitude noise environment. Limits can be set manually or detected automatically. (6.2.34)

Skip it.

Calibrate Current

Procedure allows for conversion of load current signal readings into percentage compare to rated load current. Coefficients for conversion can be entered manually or calculated by InsulGard firmware. (6.2.30)

Use and to scroll to Calibrate Current. Press Enter. Use and to switch between Manually Input Coefficient and Auto Calculate Coefficient. Press Enter to type-in coefficient manually or percentage of running load current in Auto mode. Press Enter..

Calibrate Voltage

Similar to current calibration. Rare used. (6.2.29)

Activate Auxiliary Parameters to Suspend Measurements

Commonly used to suspend measurements when load current or voltage (rare) readings are zero – equipment out of service. Suspends measurements if chosen parameter is out of the preset range. Default settings are 5 to 150% of the rated current/voltage. Leave Set mode and check reasonable reading of current/voltage before enabling that feature otherwise could have no measurements at all. (6.2.25), (6.2.26)

Use and to scroll to Set Suspend for Temperature/Voltage/Current. Press Enter. Use and to chose On/Off. Press Enter. If On have been chosen, set Low Limit, press Enter, then set High Limit and press Enter.

Number of Power Cycles per acquisition

Determines measurement time in terms of number of cycles of power frequency. 60 cycles 60 Hz power means 1sec time exposure for every magnitude window. 60 cycles is the default value. Commonly decreased to 5 for calibration to save time. Measurement time estimate: N of active channels * 21 magnitude windows * N of cycles / power frequency. With 15 active channels, N=60 and 60Hz power, measurement time = 15*21*60/60=315sec ≈ 5 minutes. (6.2.12)

Use and to scroll to Set # Of Cycles for Data Meas.. Press Enter, use and to switch between digits, use and to change the value, press Enter.

Select PDI or Qmax

Choose PDI or Qmax as the parameter to represent PD activity and activate Warning/Alarm operations. Chosen parameter will be on display and brought to 4-20mA output. (6.2.19)

Use and to scroll to Set PDI or Qmax Output, Press Enter. Use and to switch between PDI and Qmax, Press Enter.



Detection and setting of Phase Reference Shift

The phase reference shift is the phase angle between the InsuGard synchronization signal and a reference signal from the phase A voltage in the monitored object. InsulGard uses this value for correct phase-resolved data representation in InsulGard software and for subsequent data analysis. If this phase shift is known or determined by any tool (UPDA, oscilloscope or any phase meter) it could be manually entered in InsulGard settings (in hardware and software). If it is unknown it can be measured by InsulGard using a reference signal from phase A of the monitored object or any other reference signal with known phase shift relative to phase A. For this measurement InsulGard works as simple phase meter. (6.2.21)

Use and to scroll to Set Phase Shift, press Enter. Use any arrow to switch between Manually Input Phase Shift and Auto Detect Phase Shift. Press Enter. In Manual Input type phase shift in and press Enter. In Auto detect mode press Enter and watch changing data for few minutes. Press Enter to stop measurements. Calculate average value. Press Enter to go to Manually Input Phase Shift and type the calculated average value. Press Enter. Deviation more then +- 5 degrees or not changing values are symptoms of a problem - see Section 7 Appendix II Synchronization and Phase Reference Shift for complete details.

Measurement Schedule

Default setting is four measurements a day by schedule. Up to 50 measurements can be scheduled. Measurement by time interval is another option - the interval must be greater than the time of a single measurement ~ 6 minutes! (6.2.6)

Use and to scroll to Set Measurement Schedule, Press Enter. Use and to switch between Schedule Per Time of Day and Schedule Per Time Interval, press Enter. Use and to scroll between up to 50 scheduled measurements, press Enter and type-in the measurement time, press Enter. Zero time means no measurement. Press Esc to go to upper level menu. In Time interval menu type Time Interval using and to move between different digits and and to change the value and then press Enter.

Set Data Save Mode

Default mode of data saving is Normal (Brief). During InsulGard commissioning and special tests Test mode (Full) saving mode is preferable. Remember: Return back to Normal mode for regular monitoring! (6.2.7)

Use and to scroll to Set Data Saving Mode, press Enter. Use and to switch between Full (Test) and Brief (Normal) mode. Press Enter to set Full mode. When Brief has been chosen, press Enter and type-in XX days interval (valid numbers are every 01-15 days) to save data in Full mode. Press Enter. Type-in On Reading # - the number of the scheduled measurement from the Measurement Schedule list. Second measurement in a day is the default setting. Press Enter

Alarm Relay Mode

The Alarm and Warning Relays modes: - Disabled (OFF) – a relay will not operate - Enabled (On) – a relay will keep alarm/warning contacts closed continuously until alarm/warning conditions will not detected anymore - Enabled for Time (t) –alarm/warning relay contacts will be closed for specified time (in sec.) after alarm/warning condition detected. (6.2.13)

Use and to scroll to Set Alarm Relay Mode, press Enter. Use and to switch to between Enabled, Disabled and Time Enabled. Press Enter. If Time Enabled have been chosen, type value in Relay On Time XXXX Seconds, press Enter.

Exit Setup Press ESC. Clear Data Memory

Clears device data memory. This is necessary at the beginning of a PD monitoring to clear memory from non related and calibration data. (6.3.1)

Press simultaneously three arrow keys “”. Use and to switch to Yes, press Enter. Watch Erasing Records message on display changed to Records Erased. Press any key.

Enter setup Enter Setup mode again as was described above

Set Data Save Mode

Set save mode to Full

Start a Single Measurement

This immediately starts a full measurement. As soon as the measurement completes check that the results are reasonable. (6.2.37)

se and to scroll to Start a Single Measurement, press Enter. Measurements In Progress will be displayed. Wait until that message disappear and repeat a single measurement 3 more times. Analyze data, make changes in settings if necessary

Set Data Save Mode

Set save mode to Brief MUST!!! Otherwise excessive data will overflow InsulGard memory and old data will be lost overwritten by newer data

Exit Setup Press ESC.



4.3 Communications Board Setup If the optional communications board is installed some configuration and driver installation must be completed to gain complete access to all of its features. There are three communication ports available.

Figure 4-1 Communication Board Ports for InsulGard

4.3.1 USB

1. Device USB port. Port is used for local communications between the InsulGard and a computer through a USB A/B cable. A software driver must be installed on the computer prior to use. The complete driver installation instructions can be found at Section 9 Appendix IV USB Device Driver Installation Host USB port. This port is reserved for future use.

4.3.2 Ethernet

There are several functions available through the Ethernet port including webpage display, FTP upload or download and operation as a virtual serial port.

Before any settings can be changed, you may need to change your computer’s network setting and access the InsulGard with an Ethernet cable connected directly between your computer and the communications board’s Ethernet port. The following are typical steps to initialize the communications.

The default IP address for the communications board is 192.168.1.1. Note, if you plan to access InsulGard on a LAN, or you need to remote monitor InsulGard online, you will need to change the IP address to an address compatible with the network where InsulGard is installed.

4.3.2.1 Change on a Computer’s Network Settings

1. Go to “Network Connections”. If a Wireless Network is used, disable it, then right Click on “Local Area Connection”, and click on “Properties



2. Click on “Internet Protocol (TCP/IP)”, then click on “Properties”

3. Before making any changes, please write down the current settings to restore the settings upon



completion. Change the settings to what is shown below.

4. Connect your computer to the Ethernet port on InsulGard with an Ethernet cable. Open Internet Explorer, type in “192.168.1.1” on the address bar and the following screen will appear. Type in “admin” for the User name and Password and you are ready to go.

4.3.2.2 Webpage

InsulGard information can be accessed via webpages through the Ethernet port,. Some parameters



must be configured before connecting to a network. Several other parameters should be customized to match the particular location. Details can be found at Section 8 Appendix III Communications Board Interface. The following table provides steps for configuring a typical installation.

Parameter or Procedure

Function/Note See section #

Date and Time Set the current date and time, synchronization to Network Time Protocol servers, date format, time zone, and temperature units.

8.5

Network Set Ethernet port configuration if connecting to an Ethernet network. 8.2

Modbus RTU Set Modbus Address and baud rate if connecting to a Modbus RS-485 network.

8.4

Email Configure email server, recipient, and event trigger information for periodic and alarm event email generation.

8.7

FTP Client Configure FTP server information and upload interval for automatic upload of the measurement database.

8.6

Access Control Change passwords for web page access 8.3

Web Page Customization

Customize location, contact information, and display names for web pages.

8.8, 8.9, 8.10

4.3.2.3 Remote Communications through a Virtual Serial Port

The Ethernet port can be configured as a virtual serial port which acts exactly the same way as the USB port does. When connected to a Local Area Network (LAN), InsulGard software can communicate with InsulGard remotely with use of the serial port number created during the setup procedures. When users log into the company’s network through a VPN from an outside network, communications with InsulGard may also be possible depending on the company’s firewall and network settings.

Please follow the steps in Section 10 Appendix V. Ethernet Virtual Communications Port Driver Installation to set up the virtual serial port on the computer.

4.3.3 Tips for Communications Setup

The following tips only apply to InsulGard with the communications board installed.

1. There is always a waiting time ranging from 20 seconds to 5 minutes before InsulGard software can communicate with an InsulGard unit after the following operations: InsulGard is powered up (1 minute), after keypad Memory and Set operations, during and for a short time after a measurement cycle and Data Erasing command.

2. If communications through the USB port is not successful, unplug the USB cable and then plug it back into the computer. If using InsulGard software versions 3.XX, exit InsulGard software, then plug-in USB cable, run software, repeat plug-out/plug-in in communication tab if have no communication again.

3. During a measurement cycle, InsulGard cannot be accessed using InsulGard software through the virtual serial port or USB port, however, the webpage will still display the information stored before the measurement.

4. If you are communicating through a virtual serial port via Ethernet, you may need to check if the IP address has been changed on the communications board. It is preferable to have a static IP



address for the InsulGard.

5. If connecting to a PC running InsulGard Software, ensure the PC COM port is set for the same baud rate as the Insulgard. Ensure communication parameters on the Insulgard software match as well.

6. If COM port does not appear on Insulgard software communication page:

a. Disconnect cable for a couple of seconds and reconnect.

b. Exit from the communication page and attempt to reconnect.

c. Restart InsulGard software and attempt to reconnect.

7. The following will result in loss of communication:

a. Attempting to connect or disconnect the Insulgard to or from the PC when the Insulgard is in setup mode or when a measurement is in progress

b. Attempting to change settings or examine data when the Insulgard is in setup mode or when a measurement is in progress

c. Attempting to adjust settings from the keypad when the Insulgard is connected to a PC running product software

8. Communication via USB may not be available on the InsulGard for up to 2 minutes after a unit power cycle because of internal processing and startup procedures.

9. When connected via a PXG Gateway, during measurement cycles and during setup the PXG will report “OFFLINE”. This does not indicate a disrepair status on the part of the InsulGard. When normal operating status is restored, the gateway should report as expected.



5 Troubleshooting

5.1 Troubleshooting Tips Possible problems and probable causes and remedies are listed in the table below:

## Problem Probable Cause Recommended remedy 1 The front panel

display is blank. Lost power Firmware programming has not completed successfully

-Check incoming power and external fuses; -Check resistance between neutral and line contacts in InsulGard power input connector should be ~47 Ohm for 115 VAC and ~157 Ohm for 230VAC versions. Higher resistance reading may indicate blown internal fuse or internal transformer problems. If necessary, replace the fuse. If significantly lower resistance is measured return the unit to the factory for repair. Try to reprogram in accordance with Firmware Upgrade manual. If failed, return the unit for repair.

2 The front panel display is not scrolling.

No data stored in InsulGard memory Internal clock failure

Scroll manually using the arrow keys. Start a single measurement to place data in memory. Scroll until Time appears on the display Observe that seconds are changing. If not, reprogram firmware. If failed, return the unit for repair.

3 When communicating through software got message “Date/Time differs from computer time significantly”.

Date/time settings in the monitor have been corrupted because backup battery was drained without external power for a long period.

Power InsulGard and let the clock battery get charged. Update date/time from a PC or from InsulGard keypad. If the problem persists, return the unit for repair.

4 Display is blinking, can’t communicate to the device from software.

Corrupted Firmware memory

Upgrade firmware. If failed return the unit for repair.

5 Flash Error message appears on the front panel display.

Corrupted data memory Cycle input power. If doesn’t help upgrade firmware. If doesn’t help either, download data and clear InsulGard memory. If the problem persists return the unit for repair.

6 Error I Channel or Error N Channel appears on the front panel display.

Signal or Noise Channel calibration failed

Cycle power, If doesn’t help upgrade firmware. If the problem persists, return the unit for repair.

7 Keypad is not working.

Lost contact between front panel flat cable and the connector on the processor board

Remove InsulGard back cover, unlock the connector push cable out and clean contacts, plug cable in gently, lock connector. Replace the back cover carefully. Don’t pinch the cable. If the problem persists, return the unit for repair.



8 Communications from a PC to InsulGard failed.

Device boards may not complete booting and internal communication setup after powering up. The RS485 network address is incorrect. Communication baud rate is incorrect. Serial COM port # in software is incorrect The modem or converter settings are incorrect. Virtual serial port has not been created.

Verify that you can see randomly blinking asterisk in lower right corner of the device display. It normally appears after 1 minute once the device is powered. If you do not see the asterisk(*), please leave the device running for another 15 minutes and check for asterisk again. Do not enter keypad setup before you see asterisk after power recycle, as this may cause 10-15 minutes of additional delay before the device will begin communicating. Check and synchronize address in the software and in the InsulGard. Set the same baud rate in the PC and the monitor – the default baud rate is 38000. Check the computer port setting and choose proper COM port # in software Communication Tab. Correct the settings according to the manuals. Install the Gadget Driver from InsulGard software CD. Disconnect and reconnect the USB cable between Communication board and PC.

9 InsulGard is not making measurements.

Control by Load Current (or Voltage) is enabled while Load readings are outside the range (typically below 5% default value). Load sensor not properly connected Rated current was not entered in firmware and Load current channel was not calibration properly. The flat ribbon cable between main block and the Sensor Interface Board is not properly connected on either end,

Disable control Check the current sensor connections. Set correct rated current and perform calibration in accordance with this manual. Check the flat ribbon cable connections. Replace the cable if necessary

10 The load current readings are incorrect.

See above See above



11 Temperature, humidity and load current are senseless.

The flat ribbon cable between InsulGard and the Sensor Interface board is not properly connected on either end.

Check the flat ribbon cable connections.

12 The temperature readings are incorrect

Temperature sensor is not properly connected The flat ribbon cable between InsulGard and the Sensor Interface board is not properly connected on either end. The temperature calibration coefficients have been corrupted. Perform calibration of the temperature channel from keypad

Verify connections against winding diagram shipped with the monitor. Check the sensors connection with an Ohmmeter. Voltage between contacts 2 and 3 on the Sensor Interface board should be ~0.25V DC Check the flat ribbon cable connections. Recall the factory settings in Unit Settings window, enable editing in “Edit Analog Input Calibration Coef.” window and “Send Settings to Device” Need calibrating resistors 100 and 138.5 Ohm to connect when prompted

13 Humidity readings are incorrect

The switch on the Sensor Interface board is in the “Ref.” position. Humidity sensor is not connected properly. Humidity calibration coefficients have been corrupted.

Set the switch to H% position Check connection against winding diagram. Check DC voltage between contacts #10 and #12 on the Sensor Interface board. Should be between 1.5 and 4 V Recall the factory settings in Unit Settings window, enable editing in “Edit Analog Input Calibration Coef.” window and “Send Settings to Device”

5.2 InsulGard replacement procedure 1. Backup old configuration in software. Backup database file for the OLD InsulGard. 2. Replace monitor for new one 3. Run InsulGard Software. DO NOT enable editing “Edit Analog Input Calibration Coef.” window

in Unit Settings window in software. 4. Change the “Magnitude Threshold, V” in Continuous Watch in Unit Settings window with the

number on the sticker on the front panel of the NEW InsulGard. 5. Send Settings to Device from Communications window. Get Settings from Device. Click “Update

the Database with the Current Device Configuration”. Backup the Settings. The database software will have analog coefficients for the NEW InsulGard with the rest of the settings from the OLD InsulGard. Have to repeat Load Current calibration if Load current was monitored and old calibration data have not been entered into NEW InsulGard firmware.



5.3 Error Messages InsulGard performs self-test when powered up and before every measurement. If self-test failed, an error message will be displayed, and the Red LED will lit. InsulGard may display the following error messages:

No Synch. Signal -- indicates a loss of the synchronization signal. For external synchronization mode verify that signal on contact 7 of the Sensor Interface Board is > 0.2VAC. Check jumpers’ position or lost jumper on the sensor interface board or on CPU board #1 in internal synchronization mode. Refer to Section 7 Appendix II Synchronization and Phase Reference Shift for details.

Clock Error – This message indicates there are the data in the device’s internal memory with date stamp that is later than the current date. This condition corrupt data consistency. Download all data to the PC software, erase all data in the InsulGard and set correct date and time. Downloaded data can have date/time inconsistency that hardly can be corrected. Refer to Section 6.2.1 Date and Section 6.2.2 Time for correction procedure via keypad.

Error | Channel – Indicates that the PD measuring channel has not pass calibration. If this message appears consistently, the device must be returned for repair.

Error N Channel – Indicates that the PD noise channel has not pass calibration. If this appears consistently the device must be returned for repair.

FLASH Error – Indicates an error reading internal FLASH memory. Download then delete data accumulated data from device memory. If does not help - the device must be returned for repair.

STOPPED – Indicates measurements are stopped and the device will not resume measurements automatically. Please refer to Section 6.2.20 Start/Stop InsulGard for details on resuming operation from the front panel keypad or refer to the Software manual to resume operation from a PC.

5.4 Fuse Replacement If 115/230VAC power is present, external fuse not blown, but the device display is blank and LEDs do not lit, internal fuse may be blown. If no permanent damage has occurred fuse replacement may correct the problem.

Cut input power off. Check the resistance between Line and Neutral. For 115VAC applications it should be ~47 Ohm, for 230VAC applications ~157 Ohm. If open circuit – change the fuse. Lower resistance indicates power transformer failure and the unit should be returned for repair.

Attention!!! Fuse replacement requires partial disassembly of the device and must be performed by a qualified person. Contact your local Eaton Electrical representative for assistance.

Fuse replacing procedure:

1. Take InsulGard of an enclosure or panel.

2. Relief flat ribbon cable by removing small cover on top of back cover. Remove InsulGard back cover.

3. Check and replace fuse:

- for 115 VAC InsulGard use 200mA 5x20 mm, 250VAC rated Time Lag 5ST200-R fuses



by BEL Inc.

- for 230 VAC InsulGard use 100mA 5x20 mm, 250VAC rated Time Lag 5ST100-R fuses by BEL Inc.

4. Carefully reassemble the device and restore connections. Pay particular attention to the flat cable connecting device’s keypad – don’t pinch it;

5. Check connections and reapply power.

The fuse location is shown in Figure 5-1.

Figure 5-1 Fuse inside InsulGard

Attention!!! If fuse blows again, do not attempt replacing the fuse for a second time. Contact Eaton representative for device replacement.



6 Appendix I InsulGard Front Panel Keypad Operation

6.1 Entering Setup

Important Note. It takes about three minutes to boot Insulgard completely. After powering unit on please wait until you see randomly blinking asterisk in lower right corner. Do not go into the “Setup

Mode” until you mention randomly blinking asterisk * in lower right corner of the display.

If you do not see the asterisk after 3 minutes, leave the device running for another 10-15 minutes, it should appear.

Press “Set” key. The password prompt will appear on the display:

Enter Setup

Password: - - - 0

Enter 5421 password by using “” and “” to move to different digits and “” and “” to change the value and then press Enter. The password is coded into device memory and cannot be changed. Wait about 20 seconds (until dashed lines will disappear) before pressing any other key. If the wrong password is entered the dashed lines remain on the display until any key is pressed.

When InsulGard is in “Set” mode, the “Set” LED will be on.

If InsulGard stays in “Set” mode for more than 20 minutes, it will exit to the upper menu and continue exiting “Set” mode to normal operating mode one step up every 20 minutes.

Access setup options by pressing “” or “” keys, select an option by pressing Enter. Exit the “Set” mode by pressing ESC. All changes will be saved in the memory upon exit.

The following setting options are listed in the order of pressing “” after entering “Set” mode.

6.2 Setup via Keypad

6.2.1 Date

Set Date

Set the date in InsulGard in MM/DD/YY format. Press Enter.

Date (mm/dd/yy)

02/15/10

Use “” and “”to move between digits. Use “” and “” to change the corresponding values. When finished, press Enter to confirm and exit. To discard the changes, press ESC to exit.

If there is a data record(s) with date/time stamp later then date/time settings, following message will



appear:

Erase Records

After New Date?

You can exit without erasing records by pressing ESC. “Alarm” LED will turn On and “Clock Error” will be displayed upon exiting Set mode. Press Enter, to delete all measurement records with date/time stamp later then date/time setting. This feature helps to keep data integrity in case of date/time settings have been corrupted.

Clearing

If the date is changed to an earlier date by the InsulGard software, the memory will not be cleared, but “Alarm” LED will be On and “Clock Error” will be displayed.

6.2.2 Time

Set Time

Sets time in InsulGard in HH:MM:SS format. Press Enter.

Time (HH:MM:SS)

02:35:12

Use “” and “”to move between digits. Use “” and “” to change the corresponding values. When finished, press Enter to confirm and exit. To discard the changes, press ESC to exit.

6.2.3 Activate PD Channels

Set Active

Channels

InsulGard has 15 signal channels. Depending upon the application, some channels are used while the rest remain inactive. To conserve memory and minimize measurement time do not activate more channels than necessary. Press Enter:

Channel 01

Off

Use “” and “” to select Channel number, use “” or “” to switch it “On”/“Off”. When all channels are properly set press Enter to confirm the changes or ESC to discard the changes. Following message will appear:

Noise Filter

On

Use “” or “” to switch Noise Filter “On”/“Off“, then press Enter.



6.2.4 Parameters to Display

Set Parameters

To Display

Chosen parameters will be scrolled on the display when InsulGard is not making a measurement.

Press Enter

Date

Off

Use “” or “” to select “On” or “Off”.

Use “”to scroll through parameters to display then enable/disable parameters to be displayed. All display options are shown below in order.

Date:

Date

On

Will be displayed as:

Date (mm/dd/yy)

02/15/10

Time:

Time On


Time

21:45:20

Show Next Scheduled Measurement Time:

Next Meas. Time

On


Next Measurement

10:00

Partial Discharge data:

Channel PD Data

On

The PD data acquired in the last measurement in each active channel will be displayed. Displayed information can looks as:

Chan %PD Status

230Norm



The “Chan” represent Channel number, “%PD” is PDI as a percentage of the preset alarm level. Four possible situations are reflected by “Status”:

Low – PDI is below low level and will not be taken into trend calculation;

Norm – PDI is above low, but below warning level;

Warn – PDI is above warning, but below alarm threshold;

Alarm – PDI is above alarm threshold.

The example above shows Channel 2 with PDI 30% of alarm threshold constituting Normal status

If Qmax is the selected parameter for diagnostic, Qmax will be displayed in mV instead of % of alarm threshold:

Chan Qmax Status

20mV1

Display Frequency. Synchronization will be displayed.

Frequency

On


Frequency

60.00 Hz

Display Temperature:

Temperature

On

A Will be displayed as:

Temperature

20ºC

Display Voltage:

Voltage

On

Will be displayed as a percent of rated voltage:

Voltage

95 %

Display Load Current:

Current

On

Will be displayed as a percent of rated current:

Current

40.0%



Display Relative Humidity:

Humidity

On

Will be displayed:

Humidity

20.4 %

6.2.5 Set a Sensor Sensitivity

Set Channel

Sensitivity

InsulGard can use almost any PD sensor operating in 1-20 MHz frequency band. Despite relative nature of PD measurements in high frequency range default sensitivity settings are entered in the settings to calculate PD Intensity. It is recommended that you use the same sensitivity for all sensors of the same type and function. A sensor sensitivity can be determined through off-line sensor calibration. That calibration has limited value and valid only for PD events next to a sensor. Also different calibration generators can give significantly different sensitivity.

Default sensitivities are preset for a particular application in settings templates in InsulGard software. Use the suggested sensitivity for Eaton PD sensors:

1. Coupling Capacitor 3 nC/Volt

2. RFCT on cable drain shield 10 nC/Volt

3. RFCT on surge capacitor ground 5 nC/Volt

4. RTD sensor in motor/small generator 10 nC/Volt

5. RTD sensor in large generator 50 nC/Volt

6. RFVS sensor in switchgear 15 nC/Volt.

Press Enter

Channel 01

10.00 nC/Volt

Use “” or “” to change Channel number. Press Enter. Use “” and “”to move between digits. Use “” and “” to change the corresponding values. Press Enter. Chose next channel. After all changes are done, press ESC to exit.

6.2.6 Set Measurement Schedule

Set Measurement

Schedule

Press Enter. Use “” or “” to switch between measurement schedule by Time Table (Time of Day) or by Time Interval.



Schedule Per

Time of Day

Press Enter.

Time of Day # 01

01:00 (HH:MM)

Use “” or “” to scroll between time table items (up to 50 measurement times can be set). Press Enter. Use “” and “”to move between digits. Use “” and “” to change the corresponding values. Press Enter. Use “” or “” to move to the next time of a day. Zero time settings means no measurement set. After completing the schedule press ESC. Default settings are four measurement per day at 1:00, 7:00, 13:00 and 19:00.

Time Interval Scheduling:

Schedule Per

Time Interval

Press Enter. Use “” or “” to switch between hours and minutes. Use “” or “” to change the values.

Time Interval

06:00 (HH:MM)

Press Enter to save time interval and exit. Press ESC to discard changes and exit.

Please note that the Time Interval must be NOT LESS than the time for a single measurement. Otherwise you may create an infinite cycle and will not be able to get out without monitor rebooting. Estimated measurement time is: t= Ncycle *Nch*21/ F +1 minute, Ncycle – number of power cycles for acquisition, Nch – number of active channels, F is the power frequency. Six minutes and higher is a minimum safe interval for default measurement settings and 15 active channels.

6.2.7 Data Saving Mode

Set Data Saving

Mode

Brief saving mode: saving records with header, calculated PD parameters for all measurements and Phase-Resolved Pulse Height Distributions (PRPHD matrixes) on programmable schedule only.

Full saving mode includes saving PRPHD matrixes for every measurement.

Press Enter:

1. Use “” or “” to choose Full. Press Enter.

Data Saving Mode

Full

2. Use “” or “” to choose Brief. Press Enter.



Data Saving Mode

Brief

Set interval in days when data will be saved in Full mode. Use “” or “” to switch between digits. Use “” or “” to change values. Press Enter

Save Full Data

Every 15 Days

Recommended setting is 15 days (twice a month).

Choose measurement number from the schedule measurement time table when Full mode measurement will be performed.

On Reading #

02

Use “” or “” to switch between digits. Use “” or “” to change values. Press Enter.

InsulGard will save Full mode data every 15 days (counting from beginning of a month) on second measurement from the schedule table.

6.2.8 Pulse Width and Interval

Set Pulse Width

Interval

Set allowed PD pulse width and allowed time interval (dead time) between two consecutive pulses. Pulses with pulse width longer then the limit will not be recorded thus rejecting most of industrial noise pulses. Time between pulses sets the criteria to reject pulses with long oscillations on their tails and increases noise rejecting capabilities.

Press Enter

Channel 01

Use “” or “” to change the channel number. Press Enter.

PD Width 640ns

Interval 2560ns

Use “” or “” to switch between PD Width and Interval. Use “” or “” to choose the values.

PD Width selections are:

640nS – default value, recommended for RTD, IPDS, RFVS and RFCT sensors

1280nS – for use with long pulses from RFCT sensors on cables

2560nS - using that selection may result in excessive noise

Interval selections are 640nS, 1280nS or 2560nS (recommended).

After necessary changes for a channel are done, press Enter to confirm and move to the next channel. After changes for all channels are confirmed, press ESC to exit.



6.2.9 Alarm Thresholds

Set Alarm

Thresholds

InsulGard operates the alarm contacts based on the PD parameter level and trend (rate of parameter change). Two PD parameters are available for alarming: PDI – partial discharge intensity and Qmax – maximum PD pulse magnitude @ 0.2 PPC repetition rate. Only one parameter can be enabled for alarming at a time.

There are three thresholds: Alarm, Warning, and Normal. The Alarm and Warning thresholds determine when the alarm and warning relays will be operated. The Normal threshold used internally to suppress trend alarm calculations while the PD parameter is below this level. We recommend having the following proportion between threshold limits: Warning 25-50% of Alarm, and Normal 15-25% of Warning. Setting can significantly differ for different objects and should be corrected after initial period of monitoring.

Press Enter

Channel 01

Use “” or “” to change the channel number. Press Enter.

There are 6 thresholds for PDI and Qmax:

P0 – PDI Normal

P1 – PDI Warning

P2 – PDI Alarm

P3 – Qmax Normal

P4 – Qmax Warning

P5 – Qmax Alarm

P0-Normal PDIThresh. 5mW

Use “” or “” to scroll between P0, P1, P2, P3, P4 and P5. Press Enter to change the threshold.

Use “” or “” to switch between digits. Use “” or “” to change values. Press Enter to save changes.

Press ESC to choose next channel.

To get to Trend thresholds setting scroll to 15th channel and press “” again.

Trend

Press Enter

P0-Warnings

5.00 Times/Yr.



Use “” or “” to switch between P0-Warnings and P1-Alarm. Press Enter to change the threshold.

Use “” or “” to switch between digits. Use “” or “” to change values. Press Enter.

Press ESC to exit to upper menu level.



6.2.10 Rated Voltage

Set Rated

Voltage

Set rated voltage for the monitored object in Volts. It must be set before the voltage channel calibration. This parameter also used for PDI (Partial Discharge Intensity) calculation.

Press Enter:

Rated Voltage

013.8kV

Use “” or “” to move between digits, and use “” or “” to change values. Press Enter to confirm changes and exit, or ESC to discard changes and exit.

6.2.11 Rated Current

Set Rated

Current

Set rated current for the monitored object in Amps. It must be set before the current channel calibration. Press Enter:

Rated Current

00001.0A

Use “” or “” to move between digits, use “” or “” to change the values. Press Enter to confirm the changes and exit, or ESC to discard changes and exit.

6.2.12 Number of Power Cycles for Data Acquisition

Set # of Cycles

for Data Meas.

Determines measurement time. The parameter represented in terms of the number of cycles of a power frequency. Sets measurement time for each magnitude window in measurement sequence. 60 cycles is default setting. Higher the number – longer measurement will take, higher statistical precision will be.

Measurement time can be estimated as the following: “number of active channels” * “21 magnitude windows” * “Number of cycles” / “Power frequency”. For 15 active channels, 60 Hz power frequency and 60 cycles for data acquisition, measurement time will be 315sec (~6 minutes). For saving time during calibration and monitor resting 5 cycles setting is sufficient.

Press Enter

Number of Power

Cycles 060

Use “” or “” to move between digits, use “” or “” to change values. Press Enter to confirm changes and exit, or ESC to discard changes and exit.



6.2.13 Alarm Relay Mode

Set Alarm Relay

Mode

Set mode and parameter of alarm and warning relays operation.

Use “” or “” to change modes:

Disabled – relays will not operate.

Enabled – relays will keep contacts closed until alarm or warning condition are present (until next measurement will show no alarm or warning condition)

Timed Enable – relays will operate for the specified time (in sec.) when an alarm/warning condition detected

Press Enter

Alarm Relay Mode

Enabled

Press Enter to select that mode.

Or use “” or “” to switch to Disabled mode:

Alarm Relay Mode

Disabled

Press Enter to select that mode.

Or use “” or “” to switch to Time Enabled mode:

Alarm Relay Mode

Timed Enabled

Press Enter to change operating time parameter:

Relay on Time

0010 Seconds


6.2.14 Minimum Noise Channel Magnitude Level

Set Min Noise

Channel Level

This setting is used to set the minimum level for the noise channel. Noise channel level slides down as the signal channel magnitude window goes down during PD measurements. The noise channel level will stop at this minimum while PD signal channel will continue to slide until it reaches the lowest magnitude window.

Press Enter



Minimum Noise

Level 0003.0mV


6.2.15 Display Scroll Time

Set Display Scroll Time

Sets time interval for displaying each item on display before scrolling to the next item.

Press Enter

Scroll Display

Every 03 Secs.


6.2.16 ModBus Address

Set Device

Address

Critical setting for communication with a monitor locally or on network. Can be set only from keypad.

Press Enter:

Device Address

001


6.2.17 Continuous Watch Options

Set Continuous

Watch Options

This feature is enabled between scheduled measurements. During that period all PD inputs are brought to Continuous Watch channel. Pulses above preset magnitude threshold are counted on 1 sec. intervals. If number of pulses in an interval exceeds preset amount, it considered a one series. If the device got preset number of such series, it starts a regular measurement. If an alarm threshold is exceeded, it stores full measurement data and turns alarm on.

Press Enter to change magnitude threshold:



Continuous Watch

Level 007.0 V

Use “” or “” to move between digits, use “” or “” to change values. Press Enter to confirm changes and move to the next screen, or ESC to discard changes and move to the next screen.

Set number of counts in a series:

Continuous Watch

Count 0010 PPS


6.2.18 Baud Rate

Set Baud Rate

Sets baud rate for RS-485 port.

Press Enter

Baud Rate

38400

Use “” or “” to change between 9600 and 38400 baud. 38400 is default setting. Press Enter to confirm the selection and exit.

6.2.19 Select PDI or Qmax Output

Set PDI or Qmax

Output

The setting is used to select either PDI (Partial Discharge Intensity) or Qmax (Partial Discharge Magnitude) as PD activity parameter for all PD channels. That parameter will control warning/alarm operation and will be brought to 4-20 mA output.

Press Enter

Output Parameter

PD Intensity

To select PDI press Enter. Otherwise, press “” or “” to switch to Pulse Magnitude

Output Parameter

Pulse Magnitude

Press Enter to confirm and exit.



6.2.20 Start/Stop InsulGard

Start/Stop

Monitoring

Resumes or Stops the monitoring. Can be used to avoid blank measurements when the monitored equipment is out of service.

Note: Will be stopped indefinitely. It is the responsibility of an operator to resume monitoring.

Press Enter

Start

Monitoring

Use “” or “” to switch between Start or Stop monitoring. Press Enter to confirm the selection and exit.

6.2.21 Phase Shift

That is one of only two operations from key pad that necessary to perform in most cases. The rest of the settings are commonly set at the factory for the project.

Set Phase Shift

Phase shift determines phase shift angle between InsulGard synchronization signal and HV power for proper representation of phase resolved patterns for advanced diagnostics. By default, InsulGard uses the internal synchronization from 115/230 VAC power source. External synchronization is optional and used mostly in variable frequency drives (VFD) application. With external synchronization there is no need to measure phase shift angle. That angle can be typed into settings in monitor and in software manually. In case of synchronization from Channel 1 coupling capacitor enter 275 degrees phase shift (valid for 50Hz+-10Hz frequency range).

Standard procedure describes situation when InsulGard measure phase shift between control power feeding the monitor and the signal from coupling capacitor on channel1. Phase A coupling capacitor must be connected to channel 1. The phase shift is measured refer to power supply voltage zero crossing from negative to positive.

For details refer to the section 7 : Appendix II Synchronization and Phase Reference Shift.

Press Enter

Manual Input

Phase Shift

Use any arrow to switch between Manual Input and Auto Detect modes.

Auto Detect

Phase Shift

Move switch at the bottom of the sensor connection board to Ref position.

Press Enter to begin measurements. Display will update every 15 seconds.



Detecting Phase

XXX

Observe changing readings for 1-2 minutes and calculate average of the displayed values.

Note: Typically measured value deviates within the range of +/- 50. Below are some hints that may help to identify phase angle measurement problems:

Phase angle varies on more than +/-100 (low reference signal magnitude or high noise).

On display “???” (reference signal is likely close to zero).

On display continuously 357 (reference signal magnitude is too high).

Press Enter at any time to stop measurements. Set Phase Shift will be displayed. Press Enter twice to get to manual Phase Shift editing:

Phase ShiftXXX

Enter calculated averaged phase shift. Use “” or “” to move between digits, use “” or “” to change values. Press Enter to confirm the changes and exit, or ESC to discard changes and exit.

Note: If using other source of phase reference signal rather then the internal connection to the coupling capacitor on channel #1, correct obtained phase shift value according to the table below:

Phase Reference source Additional Phase Shift

Channel 1 (Coupling Capacitor on Phase A ) 0

PT Phase A 0

PT Phase B -120

PT Phase C -240

PT Phase A-B +30

PT Phase C-B +90

Switch H%/Ref switch to H% position after completing setting phase reference.

6.2.22 Channel Phase

Set Channel

Phase

Assigns phase and corresponding phase shift to a channel. Doesn’t affect measurements- will shift phase resolved patterns when represented in diagnostics software. Can be done in software during interpretation of PD data. Phase A setting will introduce zero phase shift, B=> -1200 shift, C=> -2400, AB=>300, AC => -30 and BC=> -90.

In some cases a sensor senses all three phases simultaneously - leave Phase A default setting.

Press Enter

Channel 01

Phase A



Use “” or “” to change Phase associations. Use “” or “” to change the channel number. When done, press Enter to confirm changes and exit, or ESC to discard changes and exit.

6.2.23 Frequency Range

Set Frequency

Range

Change only for PD measurement in low frequency power systems below 20 Hz. Rare used. Default setting > 20 Hz.

Press Enter

Use “”, “”, “” or “” to change between >20 Hz and <20 Hz. Press Enter to confirm the selection and exit or ESC to discard changes and exit.

6.2.24 Suspend for Temperature

Set Suspend For

Temperature

Used for suspending measurements when temperature readings are outside preset range. Rare used. Default setting is Off.

Press Enter

Use any arrow key to switch between Off and On. If Off is selected, pressing Enter to confirm and exit. When On is selected, press Enter

Temperature

Low Limit -500C

Use “” or “” to move between digits. Use “” or “” to change values. Press Enter to confirm or ESC to discard changes and move to High Limit setting.

Use “” or “” to move between digits. Use “” or “” to change values. Press Enter to confirm changes and exit, or ESC to discard changes and exit.

The example above means that when suspending is enabled, InsulGard will make measurements only if temperature readings are between -50 oC and 150oC.

6.2.25 Suspend for Voltage

Set suspend For

Voltage

Used for suspending measurements when voltage readings (in percentage of rated voltage) are outside

Frequency Range

> 20 Hz

Suspend for Temp

Off

Temperature

High Limit 1500C



the preset range. May be used to suspend measurements when the equipment is out of service. Rare used. Default setting is Off.

Press Enter

Suspend For Volt

Off

Use any arrow key to switch between Off and On. If Off is selected, pressing Enter to confirm and exit. When On is selected, press Enter

Voltage

Low Limit 005%


Voltage

High Limit 150%

Use “” or “” to move between the digits. Use “” or “” to change the values. After all changes are made, press Enter to confirm all changes and exit, or ESC to discard any changes and exit.

6.2.26 Suspend for Current

Set Suspend for

Current

Used for suspending measurements when Load Current readings (in percentage of rated current) are outside the preset range. May be used to suspend measurements when the equipment is out of service. Used widely on rotating machines. Default setting is Off.

Press Enter

Suspend For Current

Off

Use any arrow key to switch between Off and On. When Off is selected, press Enter to confirm the selection and exit. When On is selected, press Enter

Current

Low Limit 005%


Current

High Limit 150%




6.2.27 Trend Window Length

Set Trend Window

Length

Sets sliding window (in number of 5 days weeks) for trend calculations. Trend calculation are performed on data obtained between the current date and current date minus Trend Window length. Week considered being 5 days long.

Press Enter

Trend Window

18 Weeks


Note: 18 week is the default value and corresponds to 90 days period.

6.2.28 Calibrate Temperature

Calibrate

Temperature

Temperature channel is calibrated at the factory for a 100 Ohm Platinum RTD. Field calibration should not be performed unless absolutely necessary (in case of different RTD have been used).

Calibration requires two precision resistors: 100.0 Ohm representing 00C temperature and 138.6 Ohm for 1000C temperature . Resistors should be connected as shown in Figure 6-1. Terminals 1 and 2 must be shortened and the resistor must be connected between the terminals 2 and 3 of the sensor interface board.

Figure 6-1 Temperature channel calibration

Press Enter to start the calibration.

Connect 00C resistor. Press Enter

Connect Resistor

For 0C ADC 64

Connect a 1000C resistor Press Enter

Connect Resistor

For 100C ADC 208

First coefficient will be displayed:



Coefficient

a = 0.690

Press Enter, second calibration coefficient will be shown:

Coefficient

b = -43.448

Press Enter to confirm and exit.

6.2.29 Calibrate Voltage

Calibrate

Voltage

Calibrate voltage channel to present voltage readings in percentage of rated voltage. Rated voltage must be already entered into the settings. If not, enter the rated voltage, leave Set mode and enter Set mode again. Firmware allow for automatic calculation of the coefficient (preferable) or manual entry.

1. Automatic Calculation (preferable)

Press Enter, use any arrow key to switch from Manually Input Coefficient to Auto Calculate Coefficient mode:

Auto Calibrate

Coefficient

Press Enter again.

Enter % of Rated

Voltage 000.0 %

Get running voltage value and enter it as the percentage of the rated voltage (Voper/Vrated *100). Use “” or “” to move between digits. Use “” or “” to change values. Press Enter. The coefficient will be calculated and displayed:

Voltage Coeff.

2372.20

Press Enter to save and exit.

2. Manual Entry

Press Enter, use any arrow key to switch between automatic and manual entry modes:

Manually Input

Coefficient

Press Enter

Voltage Coeff.

XXXX.XX

Use “” or “” to move between digits. Use “” or “” to change values. Press Enter to save and



exit.

6.2.30 Calibrate Current

Calibrate

Current

Calibrate a CT sensor for load current. The calibration have to be done on site. Sensor must be connected and the monitored equipment must be energized and carrying a load. Rated current must be already entered into the settings. If not, enter the rated current, leave Set mode and enter Set mode again. Firmware allow for automatic calculation of the coefficient (preferable) or manual entry.

Manual entry may be used if the equipment is not running.

1. Automatic calculation (preferable)

Press Enter, use any arrow key to switch from Manually Input Coefficient to Auto Calculate Coefficient mode:

Auto Calculate

Coefficient

Press Enter

Enter % of Rated

Current 000.0 %

Get running current value and input it as the percentage of rated current (Ioper/Irated *100). Use “” or “” to move between digits. Use “” or “” to change values. Press Enter. The coefficient will be calculated and displayed:

Current Coeff.

2341.20


2. Manual Calculation and Entry

Press Enter, any arrow key to switch between automatic and manual entry modes:

Manually Input

Coefficient

Press Enter

Current Coeff.

00001.00

Enter the coefficient. Use “” or “” to switch between digits. Use “” or “” to change values. Press Enter to save and exit.

Note: Current Coefficient CK can be calculated if Rated Current Irated and the metering CT rating Ict are known. Assumption made that metering CT ratio is always Ict : 5.



If rated current was entered in the settings, calculate Current Coefficient and enter it manually as:

CK= 2.2*Ict.

Wrong CK can be corrected later by multiplying by the coefficient equal to the actual relative load(%) divided by InsulGard readings.

FlexCore primary CT with the Load Current sensor might be installed over 1 feeder of several feeders per phase. There will be no valid current measurement in this case, but current monitoring will be still sufficient for PD diagnostics purpose. Multiply CK coefficient by number of feeders in such case.

6.2.31 Calibrate 4-20mA Loop

Calibrate

4-20 mA Loop

4-20 mA interface is pre-calibrated at the factory. Calibration procedure can be repeated if necessary – particular metering device reads differently.

In this procedure the device will set 5, 7, 9, 11, 13, 15, 17 and 19 mA on its output. If the receiving interface reads differently, readings can be entered into InsulGard, which will calculate a linear approximation coefficients.

Press Enter

Output = 5.0 mA

Actual = 05.00 mA

Change the “Actual” value as read on the receiving interface, use “” or “” to move between digits, use “” or “” to change values. Repeat editing the rest of calibration point:

Press Enter

Output = 7.0 mA

Actual = 07.00 mA

Press Enter

Output = 9.0 mA

Actual = 09.00 mA

Press Enter

Output = 11.0 mA

Actual = 11.00 mA

Press Enter

Output = 13.0 mA

Actual = 13.00 mA

Press Enter

Output = 15.0 mA

Actual = 15.00 mA



Press Enter

Output = 17.0 mA

Actual = 17.00 mA

Press Enter

Output = 19.0 mA

Actual = 19.00 mA

Press Enter, the new calibration coefficients will be shown:

Coefficient

a = 1.0000

Press Enter

Coefficient

b = 0.0000


6.2.32 Calibrate Humidity Sensor

Calibrate

Humidity

Sensor is pre-calibrated at the factory - do not calibrate the humidity channel unless absolutely necessary.

Press Enter, use any arrow key to switch between three options:

Turn humidity monitoring Off (never used):

Humidity Sensor

Type - Off

Use Voltage input channel for humidity measurements (default setting):

Humidity Sensor

Type - Voltage

Use Current input channel for humidity measurements when want monitoring Voltage and Humidity instead of Humidity and Current.

Humidity Sensor

Type - Current

Press Enter to make choice between Off and measurement by Voltage or Current channels.

Next two windows will allow entering the calibration coefficients for chosen input.



Humidity Offset

838.00

Use “” or “” to move between digits. Use “” or “” to change values. Press Enter to confirm changes and move to Slope setting or ESC to discard changes and move to Slope setting.

Humidity Slope

31.575

Use “” or “” to move between digits. Use “” or “” to change values. Press Enter to confirm changes and exit or ESC to discard changes and exit.

6.2.33 Noise Filter Offsets

Set Noise

Filter Offset

The Noise Filter offset allows setting the noise filter level from –5 to +5 magnitude zones relative to the signal channel independently for each signal channel. The default level for all channels is set to +1 zone of noise filter offset. Do not change this value unless necessary.

Press Enter

Channel 01

1

Use “” or “” to scroll through the channels. Use “” or “” to change the noise filter offset value for each channel. After all changes are done, press Enter to confirm all changes and exit, or ESC to discard any changes and exit.

6.2.34 Channel Low Magnitude Limit

Set Channel Low

Magnitude Limit

PD Intensity and Pulse Repetition Rate are calculated for each channel starting from a certain magnitude threshold and up to the highest magnitude window (“Zone” in software). Changing that threshold allows for discarding of low magnitude noise from PDI and pulse repetition rate calculations. Low magnitude limit has to be set for each channel independently based on the channel’s background noise level. This procedure applicable only with all sensors connected and a monitored object in operation.

Note: Magnitude windows are numbered from high to low magnitude following measurement process. Lowest magnitude corresponds to window #21, highest to #1.

Press Enter:

Use any arrow key to choose between Manually Input and Auto Detect Low Limit.

Manually Input

Low Limit



Press Enter.

Channel 01

Low Limit -67.83dB

Use “” or “” to scroll through the channels. Use “” or “” to scroll through the available values in dB. Reference between magnitude window number, magnitude threshold in mV and in dB is shown in the following table.

Magnitude windows (zone) threshold for InsulGard Magnitude window Threshold (V) dB

10.000 0

1 6.894 -3.23 2 4.753 -6.46 3 3.277 -9.69 4 2.259 -12.92 5 1.558 -16.15 6 1.074 -19.38 7 0.740 -22.61 8 0.511 -25.84 9 0.352 -29.07

10 0.243 -32.3 11 0.167 -35.53 12 0.115 -38.76 13 0.080 -41.99 14 0.055 -45.22 15 0.038 -48.45 16 0.026 -51.68 17 0.018 -54.91 18 0.012 -58.14 19 0.009 -61.37 20 0.006 -64.6 21 0.004 -67.83

Make necessary changes in the channels. Press Enter to confirm changes and exit, or ESC to discard changes and exit.

In Auto Detect mode the device will measure actual signals from each channel with the Noise filter set Off. It will count all pulses received by the channel and find magnitude threshold with the total number of pulses above that threshold exceeding 50,000 pulses per second. Low Limit in that channel will be set to the next higher magnitude threshold. Calculations of PDI and pulse repetition rate will be performed above that level only.

Choose Auto Detect and press Enter, use “”, “”, “” or “” to choose the auto detect mode as shown below:

Auto detect

Low Limit

Press Enter. Measurements In Progress will blink and replaced with Noise Level window:

Summarized background noise from all channels will be displayed:

Noise Level

0.0

Press Enter to measure noise in individual channels:



Measurements

In Progress

When measurement completed, may scroll through the channels and see result in terms of magnitude window number:

Channel 01

21

Use “” or “” to scroll through the channels. Press Enter to accept the values and proceed further or ESC to discard changes and exit.

Align Channels?

Yes

If Yes is selected, procedure will align the thresholds for the channels with the same sensitivity setting to maximum threshold over those channels.

Before aligning channels, compare the results in channels with the same sensitivity. If they differ by 3 zones or less, select Yes to allow the device for aligning the thresholds for those channels. Otherwise, select No to leave the values at the detected levels.

Use any arrow key to switch between Yes and No. Then press Enter.

6.2.35 Software Filters

Set Software

Filters

Filters have been developed mostly for coupling capacitor sensors on large turbine generators equipped with iso-phase bus to discard external PD activity coming from buses toward a generator and masking internal PD activity in a stator. PD pattern of sparking to a conductor under floating potential have been targeted. We do not recommend using these filters for other equipment or sensors without consulting an expert.

Press Enter:

Channel 02

Filter Off (or 1,or 2, or 3)

Use “” or “” to scroll through the channels. Use “” or “” to switch between filter options: Off, 1, 2, or 3. After changes are done, press Enter to confirm changes and exit, or ESC to discard changes and exit.

6.2.36 ModBus Protocol

Set ModBus Protocol

InsulGard supports Modbus RTU and Modbus TCP protocols. Press Enter.



Modbus Protocol

RTU

Use any arrow key to switch between RTU (default setting) and TCP. Press Enter.

NOTE: The ModBus Protocol must be set to RTU if the optional communications board is installed. The communications board handles the ModBus TCP protocol separately.

6.2.37 Start a Single Measurement

Start a Single Measurement

This procedure forces a measurement to start immediately.

Once Enter is pressed, the single measurement starts with Measurements In Progress displayed during the measurement:

When the measurement completes the display returns to set menu.

6.2.38 IP Address

IP Address

This Command displays communication board IP address. IP address may be used to access the device over Ethernet. The IP address could not be changed using keypad.

If you see the message that Board 4 is missing, please exit setup and leave the device running until you see randomly blinking asterisk(*) in the lower right corner, it can take about 1 minute (but up to 15 minutes in rare cases), then you may enter setup again.

6.3 Accessing Memory via Keypad

6.3.1 Clear Data Memory

This operation will erase all data saved in memory. Press three keys simultaneously - “”,“”, “” :

Erase Records?

Yes

Use any arrow key to switch between Yes and No. Press Enter. If No is selected, screen returns to normal. If Yes is selected, then Erasing Records will be displayed until records will be erased and Records Erased will be displayed. Press any key to return to normal screen.

6.3.2 Check Data Saved in Memory

Press “Memory” key on the keypad to get number of stored records:



2 Records

In Memory

Press Enter:

View Records For

03/10/09

Use “” or “” to move between digits for Year, Day or Month respectively, use “” or “” to change the date. Press Enter. If there is no data on that day, the data recorded at the time closest to that date will be shown.

View Records For

03/10/09 14:17

Use “” or “” to scroll through data recorded at different times. Chose the data and press Enter

Chan %PD Status

1 0 1

Use “” or “” to scroll through the channels, and, use “” or “” to switch between Qmax and PDI (%PD). Press Enter again to return to the previous menu and choose a different record. Press ESC to exit Memory mode.



7 Appendix II Synchronization and Phase Reference Shift Synchronization signal used in PD measurements and must present all the time.

Loss of synchronization signal stops InsulGard measurements and communication operation Error message “No Synch. Signal” will be displayed.

Phase reference shift is a phase angle between a synchronization signal and the reference signal synchronous with phase A voltage of a monitored object. Phase reference shift is used for correct representation of phase-resolved data in InsulGard software for advanced data analysis.

Incorrect phase reference shift doesn’t affect data acquisition, integral quantities calculations and alarm operation. Establishing the correct phase reference shift later will provide correct phase-resolved data analysis of the data acquired earlier.

Correct phase reference shift should be set regardless of the selected synchronization option. Phase reference shift may be obtained by using InsulGard internal procedure, by a phase meter, oscilloscope or other instrumentation.

7.1 Synchronization InsulGard allows external synchronization or internal synchronization from 115/230VAC power supply. Internal synchronization is the most reliable option since it stops operation only if the power is off. This is the default option for InsulGard.

External synchronization is used when power supply voltage is not synchronous with voltage in the monitored object, mostly for Variable Frequency Drive (VFD) applications.

Be cautious when powering InsulGard from a UPS. It is acceptable only when the UPS has a constant phase shift to the voltage of the monitored object in standby mode. If not, InsulGard will be “asynchronous” to the monitored object and cannot make reliable measurements. If unsure about UPS power, external synchronization must be used.

Two jumpers JU1 & JU2 inside InsulGard enclosure (on right side from power supply transformer) are used to change synchronization type. By default they are positioned for internal synchronization as shown in Figure 7-1a. Jumpers should be moved to upper position for external synchronization - Figure 7-1 b.

a

b

Figure 7-1 Jumpers JU1 & JU2 position for a) Internal and b) External synchronization.



External synchronization signal should be connected to the Sensor Interface Board. There are two external synchronization options:

Using the signal from a coupling capacitor installed on phase A and connected to PD channel #1. The signal contains high frequency PD component and power frequency component. Power frequency component may be used for synchronization and phase reference measurement. For synchronization jumper J1 has to be installed as shown in Figure 7-2 b (default position).

Using an external signal source, like a potential transformer (PT). This signal should be connected to contacts # 7 and #9 (Ground) on auxiliary signals terminals in sensors interface board (Figure 7-2a). The signal should be in recommended range of 0.2-1VAC and not to exceed 5VAC. Use resistive divider to bring the signal into recommended range as shown in Figure 7-2 a. Input #7 has 27kOhm impedance. For that synchronization option jumper J1 (Figure 7-2 b) has to be open.

Fuse0.1A

Fuse0.1A

R150-100 kOhm

R21-3 kOhm

DIVIDERPT

a b c

Figure 7-2. a- Divider for reference voltage from PT connected to the Sensor Interface Board, b – Jumper J1, c – Switch position for phase reference shift measurement.

7.2 Typical Phase Reference Shift for External Synchronization The table below presents phase shirt angles for most common external synchronization options. Phase shift should be manually entered into InsulGard firmware and software settings:

External Synchronization Signal from Phase Shift

Channel 1 (Coupling Capacitor on Phase A) 0

PT Phase A 0

PT Phase B +240

PT Phase C +120

PT Phase A-B (Open Delta) +30

PT Phase C-B (Open Delta) +90

VFD application uses a modified sensor interface board with additional filtering. Phase shift slightly depends on frequency and varies from 277 to 273 in 40-60 Hz frequency range. For typical applications 50Hz +-10Hz enter 275 degrees.

7.3 Determining Phase Reference Shift By default InsulGard uses internal synchronization from 115/230 VAC power source. If phase shift between this voltage and phase A voltage of the monitored object is known it can be manually entered



using software or keypad (section 6.2.21 Phase Shift). If it is unknown InsulGard can be used to measure phase shift in Set mode from keypad. Signal for phase reference measurement can be obtained from:

PD channel # 1 (if A phase coupling capacitor connected to Ch#1)

external source temporarily connected to contacts #7 and #9 (ground) - Figure 7-2a. Temporarily remove J1 for measurement and return it back upon completion.

Enter Set mode as described in 6.1: Entering Setup . Scroll through the settings to Set Phase Shift:

Set Phase Shift

Press Enter:

Manually Input Phase Shift

Press Enter for manual input or use any arrow key to switch from manual input to Auto Detect:

Auto Detect

Phase Shift

Set toggle switch on the sensor interface board to Ref position (Figure 7-2 c).

Don’t forget to return it to the H% position upon completion!

Press Enter to start phase angle measurement. The display will be updated with a measured value every 15 seconds.

Detecting Phase

XXX

Observe changing readings for 1-2 minutes and calculate average of the displayed values.

Note: Typically measured value deviates within the range of +/- 50. Below are some hints that may help to identify phase angle measurement problems:

Phase angle varies on more than +/-100 (low reference signal magnitude or high noise).

On display ??? (reference signal is likely close to zero).

On display continuously 357 (reference signal magnitude is too high).

Press Enter at any time to stop measurements. Set Phase Shift will be displayed. Press Enter twice to get to manual Phase Shift editing:

Phase ShiftXXX

Enter calculated averaged phase shift. Use “” or “” to move between digits, use “” or “” to change values. Press Enter to confirm the changes and exit, or ESC to discard changes and exit.

Note: If using other source of phase reference signal rather then the internal connection to the coupling capacitor on channel #1, correct obtained phase shift value according to the table below

Additional phase shift number must be added to the calculated average value. New number should be adjusted to 00-3600 range by adding or subtracting 3600 and resultant number manually entered into



InsulGard (see 6.2.21 Phase Shift).

Phase Reference Option Additional Phase Shift

Channel 1 (Coupling Capacitor on Phase A ) 0

PT Phase A 0

PT Phase B -120

PT Phase C -240

PT Phase A-B +30

PT Phase C-B +90

Return switch into H% position upon completion!

7.4 InsulGard with Automatically Synchronization Switching.

(Effective for InsulGard with new Sensor Interface Board shown in Figure 7.3 below)

Newer Insulgard units have two new hardware features: 1. As described above InsulGard can work at two types of synchronization: at internal synchronization when monitored object has a power voltage frequency the same as the InsulGard power supply voltage 115/230V-60/50 Hz and at external synchronization used typically for motors with Variable Frequency Drives (VFD). The type of used synchronization was previously changed by the position of two jumpers inside InsulGard case (section 7.1). Using this method, when the source of external synchronization (i.e. drive or motor) was not energized, the synchronization signal was lost and the InsulGard unit could not function or communicate. The InsulGard now features an electronic switch which automatically switches from external to internal synchronization when there is no external synchronization signal, and switches back to external synchronization when it appears. While it is no longer necessary to open the InsulGard unit to reposition jumpers, the Sensor Interface Board has an additional jumper J3 (Figure 7.3). For external synchronization it must be installed in the position shown in Figure 7.4a, for internal synchronization it must be installed in position shown in Figure 7.4b.



Figure 7.3 New Sensor Interface Board

Figure 7.4a. External

synchronization Figure 7.4b. Internal

synchronization

Figure 7.5a. VFD Filter

ON

Figure 7.5b. VFD Filter

Off

2. The Sensor Interface Board now features an additional low pass filter (VFD Filter) which should be used for external synchronization signal from motor with VFD to remove the effects of high frequency switching noise. DIP switch settings shown in Figures 7.5 turn this filter on or off.

J3



The filter has two corner frequencies Fcorner (74 Hz and 21 Hz) which corresponds to two frequency ranges of InsulGard: f >20 Hz and f < 20Hz – Low frequency mode. The filter stop band (-80dB) is 1.5* Fcorner, that are about 30Hz and 100Hz correspondingly. Three jumpers in filter circuit allow selection of the filter corner frequency. Usually the manufacturer will install these jumpers in accordance with VFD frequency for a particular InsulGard application. For assistance in reconfiguring these jumpers for a given application, please contact EATON technical support. Please note that, depending on signal frequency, this filter provides a large phase shift in synchronization signal (Figure 7.6) and correspondingly in PD phase distribution.

Figure 7.6 Filter phase shift.



8 Appendix III Communications Board Interface The communications board is an optional part when InsulGard is being ordered. Sections 8 9 and 10 can be ignored if InsulGard is not equipped with the communications board.

8.1 General The InsulGard Communications Board provides access through USB and Ethernet interfaces as well as a tunnel for RS-485 communications. The USB Device interface provides a standard serial communications port to connect to a local PC. This interface is typically used for local access of InsulGard data using the InsulGard PC software as well as for upgrading firmware in the communications board.

The USB Device Driver must be installed on the PC accessing the InsulGard prior to using the USB Device interface. (See Section 9 Appendix IV USB Device Driver Installation for complete installation instructions). Once driver is installed, a serial communications port such as COM5 should be assigned to this interface (the exact port number will vary depending on what other devices are installed on the PC). When accessing the InsulGard using the InsulGard PC software simply configure this serial port number on the Communication tab of the software.

NOTE: If the InsulGard or the PC accessing the InsulGard is rebooted or turned off and back on, the USB cable from the PC to InsulGard must be disconnected and reconnected to reestablish the link.

The USB Host is reserved for future use.

The Ethernet interface supports the following network protocols:

Modbus TCP/IP on Port 502 for interface to 3rd party building management systems.

Web Server/HTTP on Port 80 providing on-board web pages viewable with standard browsers such as Microsoft Internet Explorer (version 7 recommended) or Mozilla Firefox (version 2 or later recommended).

SMTP on Port 25 for sending Email across the Internet.

FTP Server on Port 21 to download InsulGard database file on demand.

FTP Client to upload InsulGard database file to a server at a specified time/interval.

SSH Secure Shell on Port 22 for certain administrative tasks.

Virtual Communication Port for simplified access by the InsulGard PC software. See Section 10 Appendix V. Ethernet Virtual Communications Port Driver Installation for driver installation.

8.2 Network Configuration The Ethernet Interface requires general configuration to provide access to the Internet for all protocols as well as specific configurations for several protocols. Prior to configuration provide your local network administrator with the MAC address of the Ethernet port located on the label on the side of the unit and request the following:

MAC Address (copy from label) _________________________

IP Address (static address*) _________________________

Subnet Mask _________________________

Gateway Address _________________________



DNS #1 (name server) IP Address** _________________________



Domain ____________________

*If you are setting up the InsulGard in a dynamic host configuration protocol (DHCP) environment the local network administrator must set up the DHCP server to provide a static address each time the card makes a DHCP request.

** Obtain the Domain Name Server (DNS) IP address and Domain if you plan to use host names. The number of available Name servers will vary depending on your network. In a DHCP environment these may be populated automatically when connecting to the network.

If you need e-mail functionality, obtain the SMTP IP address or host name and determine if you need login/password information to access the server. If using the SMTP host name, verify that you also have the DNS IP address above.

SMTP (mail server) IP Address or Host Name _________________________

Once you have the required information configure your PCs LAN connection TCP/IP properties with IP address 192.168.1.2, Subnet Mask 255.255.255.0 and connect the InsulGard to your PC with a CAT5 crossover cable. Note that newer computers may have “autosensing” Ethernet adapters that will work with a standard CAT5 cable and don’t require a special crossover cable.

Open your web browser and enter InsulGard’s default IP address 192.168.1.1 on the address bar select Go. A login screen will appear similar to Figure 8-1 Typical login screen. The default User name and Password for read-only access is user, and for configuration (read/write) access is admin. Log in using admin and select OK.

Figure 8-1 Typical login screen

To ensure the security of your system, change the user and admin passwords after the initial login.



The InsulGard home web page display should appear, similar to Figure 8-2. Note the different areas and features of the web page that will be referred to throughout this document.

Figure 8-2 PDA home web page

The Enable 60 second auto-refresh feature causes your web browser to read and display the latest information from the InsulGard every 60 seconds. This feature can be disabled if necessary by selecting the check box in the header bar so that the check mark disappears. In this case you must use your browser’s refresh feature (for example the F5 key) to update the web page with the latest information.

The active alarm notification area indicates that an alarm or warning condition is present. Red alert is for Alarm events, Yellow alert is for warning events. Relay health indicates the status of the Insulgard itself.

To configure the network settings, select the Network link from the menu bar. The Network Configuration page appears similar to Figure 8-3.



Figure 8-3 Network Configuration Page

The page shows the current network status for the InsulGard communications board (green indicates the network is connected; red indicates the network is disconnected).

You can enable or disable the DHCP control as indicated by your network administrator by activating or deactivating the DHCP Enabled check box. The default is DHCP disabled

If DHCP is disabled enter the IP address, Netmask, and Gateway as provided by your network administrator. Also if you will be using host names for servers such as the mail server, Network Time Protocol (NTP) server, Modbus TCP hosts, or FTP Client recipients, enter the IP address of your network DNS Server(s) in the Nameserver fields as well as the Domain Name. Note that if you enabled DHCP all of these fields should populate automatically when you connect the InsulGard to your normal network.

Select Apply and OK to save your changes or Discard to restore the previous setting. If you have set up the network configuration as indicated by your network administrator you should now disconnect the InsulGard from your PC and connect it to the normal Local Area Network. Also if necessary reconfigure your PC and connect to the LAN. Enter the IP address that you have just configured into address line of your web browser and verify that you can login to the InsulGard.



8.3 Change Passwords There are two user names for web page access, user for read-only and admin for read/write (configuration). The user names are fixed, but the passwords can be changed to ensure system security. To change passwords, when logged in as administrator select the Access Control link from the menu bar. This opens the Access Control Configuration page similar to Figure 8-4.

Figure 8-4 Access Control (Password) Configuration Page

The characters in the password fields appear as asterisks (*). The number of asterisks does not match the length of the password.

To change the user password, enter the new password twice (replace existing asterisks) in the Password for the user account fields.

To change the admin password, log in as admin and enter the new password twice (replace existing asterisks) in the Password for the admin account fields.

Click Apply and then OK to save the new password(s) or Discard to restore the previous password(s). The passwords update and display as a full row of asterisks.

NOTE After you change the password, you will be prompted to enter the new password the next time you navigate through the card's Web page.

Note There is no simple means of restoring default passwords, so make sure you remember all password changes.



8.4 Modbus RTU Configuration The Modbus RTU configuration determines the baud rate and device ID that will be used by external devices to communicate to the InsulGard via the RS-485 , Modbus TCP over Ethernet, and USB interfaces. Any changes to these parameter must be coordinated with the external networks communicating with the InsulGard. To view the Modbus RTU information, when logged in as administrator select the Modbus RTU link from the menu bar. This opens the Modbus RTU Configuration page similar to Figure 8-5.

Figure 8-5 Modbus RTU Configuration Page

Modbus RTU Device ID is in the range of 1-247 and the Modbus RTU Baud Rate could be 9600 or 38400. These parameters could be adjusted only from Insulgard keypad. Note that RS-485 networks with multiple connections and long wiring runs may not work reliably at the higher baud rate.

8.5 Date/Time Configuration The date and time should be set properly to correlate alarm events and utilize periodic reporting functions. The communications board can be synchronized to one or more Network Time Protocol servers. This is the recommended method to ensure accurate timekeeping. When the communications board is synchronized with the NTP server it will also periodically synchronize the clock on the measurement board. If it is not synchronized to an NTP server the clocks on the two boards will free run, resulting in minor discrepancies over long time periods unless you manually reset both clocks



periodically. To configure the date/time settings, when logged in as administrator select the Date/Time link from the menu bar. This opens the Date/Time Configuration page similar to Figure 8-6.

Figure 8-6 Date/Time Configuration Page

To synchronize the card with Network Time Protocol servers select Synchronize with NTP server(s) and type the IP addresses or host names. You can synchronize the card with up to three NTP servers. You may need to contact your local network administrator to determine if there are issues with accessing NTP servers through your corporate IT security firewall.

The NTP status is indicated in parentheses:

Not running – Indicates that NTP is not running.

Started, not synchronized – Indicates that NTP is running, but is not yet synchronized with an NTP server or controlling the local clock.

Synchronizing with NTP server – Indicates that NTP has synchronized with the local clock, but is not yet synchronized with an NTP server.

Synchronized to XX, NTP stratum YY – Indicates that the card is synchronized with an NTP server at IP address XX that is operating at NTP Stratum YY.

NOTE When NTP status is Synchronized and there is a large discrepancy between the InsulGard time and the actual time, it may take 5–30 minutes for NTP to reset the card to the proper time.

To set the time based on the time from you PC clock select Set date/time from PC clock.

To set the time manually select Set date/time manually and use the pull-down menus to select the local date in mm/dd/yyyy format and the local time in hh/mm/ss format.

To customize how the date appears in the data and event logs, select a Date format for logs option (mm/dd/yyyy, dd/mm/yyyy, yyyy-mm-dd, or dd mmm yyyy). The default is mm/dd/yyyy.

To select the time zone for the card, specify the Timezone for Logs, email, and connected device.



To specify how the temperature appears on the Web page, select Fahrenheit or Celsius.

Click Apply and then OK to save the settings, or Discard to restore the previous setting. Refresh the Web page to view the updated time and formats.

8.6 FTP Client Configuration The InsulGard communications board provides FTP access to the measurements database file through both FTP Client and FTP Server applications. The FTP server does not require any special configuration. It is accessed with standard FTP software applications through the programmed IP address. The FTP client provides automatic periodic upload of the measurements database file to an FTP server. This can be useful to push data out through a corporate IT security firewall that may block incoming FTP requests. To configure the FTP client, when logged in as administrator select the FTP Client link from the menu bar. This opens the FTP Client Configuration page similar to Figure 8.7.

Figure 8-7 FTP Client Configuration Page

Program the FTP server IP/hostname of the FTP server to send the file to as well as the FTP server username and FTP server password required to login to the server.

The measurement database file will be stored in the login directory with the default filename measurement_data.db. To change the directory on the FTP server where the file is placed, or to change the name of the file enter the directory path and/or filename in the FTP upload path field.

Select Enable SSL if your server is set for Secure Socket Layer transfers.

To verify the FTP server settings are correct select Test FTP file upload, and verify the file transfers properly. This button can also be used instead of the periodic file upload to force a file transfer on demand.

Program the Days between upload and Time of day for periodic file upload (HH:MM), then select Enable periodic file upload to send the database file out at the desired interval and time of day.

Select Apply and OK to save your changes or Discard to restore the previous setting.



8.7 Email Configuration You can use the InsulGard communications board to inform selected e-mail accounts of events and changes in status as they occur, or to provide a status message at a predetermined time. To configure e-mail notifications, when logged in as administrator select the General Email link from the menu bar. This opens the General Email Configuration page similar to Figure 8-8.

Figure 8-8 General Email Configuration Page

Enter the IP address or host name of the SMTP Server IP/hostname (mail server) that will be used to send the e-mail messages.

If you need to enter a user name and password for the SMTP server, click Advanced SMTP configuration. If you have made changes to the General Email Configuration page, a confirmation box opens. Click OK to save the settings; otherwise, click Cancel.

The Advanced SMTP Configuration page will open similar to Figure 8-9.



Figure 8-9 Advanced SMTP Configuration Page

Enter the user name and password in the SMTP username and SMTP password fields.

Specify a “from” e-mail address in the SMTP From Address field (for example, [email protected]).

Note that using an improper address may prevent emails from being sent out from your SMTP server. If you are not sure about these settings contact you local network administrator.

Select Apply to save the settings or Discard to restore the original settings and return to the General Email Configuration page.

Once the SMTP server configuration is set you may select the Test SMTP server connection button. This will open a new browser window with diagnostics showing the status of a test message sent to the server that you configured. Note if the SMTP test is successful, the confirmation displays immediately. A failed test may take a long time. Close the window if you want to terminate the test.

After the SMTP server is configured properly you need to configure recipients for the emails that will be generated. You may select the type of emails sent to individual recipients as well as notifications that will be sent to all recipients.

Begin by selecting 1 of 10 Recipients with the drop-down selection field.

Program the email address of this recipient in the To field.

Select the options for this email recipient by selecting the appropriate check box.

Send on event active – sends an email when events (typically alarms) occur

Send on event clear – sends an email when events go away

Attach event log file for event emails – includes the event history log with email events

Attach data log file for event emails – includes the data history log with email events

Attach ID file for event emails – includes the ID file with email events

Send periodic status email – sends an email including the event log, data log, and ID file at the



given time of day repeated at the given number of days. You must program the Days between periodic status email and Time of day for periodic status email (HH:MM) (in 24 hour format) fields.

When all options are set select Apply to save the settings for this recipient or Discard to restore the original settings. You may repeat this procedure for the remaining recipients, selecting Apply after configuring each recipient.

To remove a recipient select the appropriate number from the Recipients drop down list, delete the email address in the To field, and select Apply.

After all desired individual recipients have been set up select the Configure button to bring up the Email Event Trigger Configuration screen similar to Figure 8-10.

Figure 8-10 Email Event Configuration Page

This page allows you to select events that will send email notifications to all recipients. You may select the appropriate check box for individual options, or use the Select All or De-select All for all options at one time. The options are:

InsulGard Summary/Modbus/RTU Device Communication Failure – occurs when the measurement board quits responding to the communications board

InsulGard Summary/Relay Health – corresponds to the Status relay on the measurement board

InsulGard Summary/Red Alert – corresponds to the Alarm relay on the measurement board

InsulGard Summary/Yellow Alert – corresponds to the Warning relay on the measurement board

Select Apply and OK to save your changes or Discard to restore the previous setting and return to the General Email Configuration page. Prior to exiting this page selecting the Test Event Email button will send an email to all recipients.



8.8 Identification Page The default name for the first item on the Menu Bar is InsulGard. Once the Display Name is modified as described in this section this name will change. Selecting this item opens the Identification page similar to Figure 8-11.

Figure 8-11 Identification Page

This page allows you to view and configure fields that will be displayed at various places in the web pages and emails to help you uniquely identify this unit.

Select Location to change the location displayed in the header bar and notification emails. This 64 character field can be programmed to anything that will help you identify this unit when you log into the web pages or view emails.

MAC Address is factory programmed and cannot be modified.

Select Who To Contact to change the contact information displayed on this page. This 64 character field can be programmed to anything that you find helpful.



8.9 InsulGard Summary Page One of the benefits provided by the Web interface of the communications board is the ability to see a quick overview of the InsulGard status. Select the InsulGard Summary link from the menu bar to open the InsulGard Summary page:

Figure 8-12 InsulGard Summary Page

The elements of this page are described below. Note that all of the categories are expanded to show all items within it. Simply click on the – beside a category name to collapse the information displayed under it.

Alarms on Monitored Device and Insulgard Status: Indicates the status of the relays on the InsulGard:

• Alarm on PD – indicates that monitored PD level exceeds the defined alarm status threshold.

• Monitor Health – Indicates the present health of the InsulGard monitor.

• Warning on PD – indicates that monitored PD level exceeds the defined warning status threshold.

Auxiliary Parameters: Indicate sync and environmental parameters that are monitored:

• Frequency – indicates monitored synchronization frequency.

• Humidity – Indicates the humidity measured from the last measurement cycle.

• Load – Indicates the load current measured as a percentage of full scale during the last measurement cycle.

• Temperature – Indicates temperature measured during the last measurement cycle.

InsulGard Internal Link Status: Displays measurement polling times and status

Measurement Overview: Provides a status indication of the current measurement on all channels:



• Channel Activation Status – provides a graphic indication of active channels. 1 & blue color field indicates active, 0 and gray indicates inactive.

• Channel Alarm Status – provides a graphical indication of channels exhibiting alarm status. 1 & red color field indicates active, 0 and gray indicates inactive.

• Percent of Max PD to Red Level – provides a graphical representation of how close the PDI level was to the alarm (or red alert) level during the last measurement.

Object information: Indicates the voltage and current for which the Insulgard is rated to measure.

8.10 InsulGard Channels Page To get a more in-depth view of the partial discharge parameters measured for each channel select the InsulGard Channels link from the menu bar to open the InsulGard Channels page similar to Figure 8-13.

Figure 8-13 InsulGard Channels Page

This page displays the partial discharge parameters for each channel during the last measurement cycle. Displayed parameters for each channel include:

PDI (in mW) – The numeric value is the amount of PDI measured on the channel in mW. The bar graph is a relative indication showing the highest value of PDI as 100% and all other channels as a percentage of the it.

% PDI of Alarm – This is PDI represented as a percentage of the alarm threshold.

PPS – This is a measure of pulses per second.

QMAX – this is the level of partial discharge measured as Qmax.



8.11 Alarms When alarms occur the alarm condition is shown at various places in the web pages including the header bar, the InsulGard Summary page, and the Open Alarms page. To view the Open Alarms page select the Open Alarms link from the menu bar. Figure 8-14 shows an example Open Alarms Page with an alarm created by disabling measurements with the InsulGard PC software.

Figure 8-14 Open Alarms Page

This page shows the Device error alert in the header bar and Open Alarms (1) in red on the menu bar with the number 1 indicating there is 1 alarm. There are a number of options available on the Open Alarms page.

Selecting Acknowledge brings up a prompt to enter information regarding acknowledgement of this alarm. When you enter the note an entry is placed into the Event Log providing a record of the acknowledgement and the alarm notifications throughout the web pages change from red to blue. The alarm remains in the Open Alarms list, but the Acknowledge option is no longer available. This option is typically used when the alarm is still active to show that someone has seen the alarm and is working on a solution to the problem.

Selecting Close brings up a prompt to enter information regarding closing this alarm. When you enter the note an entry is placed into the Event Log providing a record of the closing and the alarm is removed from the Open Alarms list. Note that if the alarm is still active at the time of closing it will re-open quickly, so this option is typically used to remove inactive alarms from the open alarms list.

Acknowledge All and Close All options are similar to Acknowledge and Close, but affect all open alarms.

The Event Log link will open the Event log, which is described in the following section.

The Parameter line will have a link with the name of the open alarm. Selecting the link will take you to the Summary page where additional information about the alarm may be available.



8.12 Logs The InsulGard communications board stores historical information about the system in three logs.

The Data log contains a history of value changes for several measured parameters.

The Event log contains a history of alarm events when alarms become active or cleared, and when they are acknowledged and closed by the user.

The System log contains a history of events related to the communications board such as reboots and configuration changes.

Selecting the Data link under the Logs category of the menu bar opens a page similar to Figure 8-15. Selecting the Event or System link will bring up similar pages for these logs.

Figure 8-15 Log Access Page

All three log access pages provide the option to View the log. Selecting this option will open a dialog box prompting you to open or save the file, depending on the applications available on your PC. The log files are in “comma separated variable” format which can be viewed with a standard text editor, but a spreadsheet application will provide more options to sort and display the files.

The Data and Event log access pages also provide the option to Erase the log and start with an empty log. This can be useful after saving a copy of the log to your PC to minimize the amount of data to scroll through when new items are added to a log. Selecting Erase the log opens a confirmation box to guard against accidental erasure. This option is not available for the System log for security reasons so that any system changes can be tracked to the person who made the change.

8.13 Documentation The Documentation category of the menu bar provides links to various documentation available directly from the communications board or from external sources on the Internet. The exact documentation available may change with new releases of communications board firmware.



8.14 Ethernet Virtual Communications Port The Ethernet Virtual Communications Port driver must be installed on the PC accessing the InsulGard prior to use. (See 10 Appendix V. Ethernet Virtual Communications Port Driver Installation). Once installed the driver assigns a serial communications port such as COM6 to this interface (the exact port number will vary depending on what other devices are installed on the PC). When accessing the InsulGard using the InsulGard PC software simply configure this serial port number on the Communication tab of the software. The following instructions describe the installation procedure for the Ethernet Virtual Communications Port driver.

8.15 Communications Firmware and Upgrade

Figure 8.16 – Insulgard Firmware Page

The firmware page reports the current versions of measurement and communication firmware. The communication firmware can be updated in the field using this page. The dialog allows you to select an image file to initiate a firmware upgrade.

NOTE: Not all firmware is compatible with all hardware. Contact Eaton prior to attempting any firmware upgrades to ensure compatibility with your hardware.

8.15.1 Steps for Updating the Communication Firmware via the Web User Interface

NOTE: These instructions are for communication board firmware only. There is also main unit firmware that is not able to be updated by this method and may depend on hardware configuration. DO NOT attempt to upgrade firmware without consulting Eaton Engineering Service to determine firmware and hardware compatibility.



1. Select the Firmware tab from the left panel on the web UI.

2. Select the appropriate .tar file to upgrade the firmware from the Firmware page. Once selected a

confirmation prompt will pop up.

NOTE: The complete firmware upgrade requires a reboot. You may check the Reboot when complete check-box to schedule a reboot immediately afterwards or you may do it afterwards.

3. Once you provide affirmation to the prompt, the image file will be uploaded to the communication

board and the firmware will be updated.



In case you have not checked the Reboot when complete check-box you will need to perform a reboot to complete the firmware upgrade process.

NOTE: Do not remove supply from the device while the image file gets uploaded or while the device gets updated.



9 Appendix IV USB Device Driver Installation This section is written for MS Windows 7 and administrative user privileges. For other Windows environments the process is expected to be consistent.

To install Insulgard USB Virtual Serial Port Driver you must have Insulgard Software installation media (CD or Flash drive) available. The driver is located in D:\usb_gadget_serial_driver_windows\

On your PC the drive letter may be different (not D)

1. Power on Insulgard and wait for 2 minutes or until you see randomly blinking asterisk in lower right

display corner.

2. Use USB A to B cable to connect Insulgard to PC usb port. Watch Windows status bar, it should display a

message like this if there were no driver installed before.

3. Once it happened, use System Device Manager to install the driver.

4. Right click on “Gadget Serial” and select “Update Driver Software”. In the following dialog, select

“Browse my computer for driver ….”



5. Navigate to the driver location on software installation media



You may get a warning like one below – select “Install….”

6. Once driver installation completed, you should see a dialog like this. Please mention a Serial Port

number in upper area, it is COM4 in this case. This is a serial number to be selected in the software for

communications.

7. If Insulgard Virtual Serial Port driver installed, the port number also could be found using Device

Manager .



10 Appendix V. Ethernet Virtual Communications Port Driver Installation and Configuration

Ethernet Virtual Com Port application should be installed from provided Insulgard Software CD by running Setup.exe file, located in appropriate folder if Ethernet access to the devices is desired. Current

Ethernet VCP driver only works under 32-bit MS Windows versions.

For 64-bit MS Windows versions we recommend using third party VCP driver software, like Netserial which could http://pcmicro.com/NetSerial/download_eval.html You will need a license to run the software for longer than 30 days.

Once configuration of the virtual serial port is completed, user should select created virtual com port and use it as for usual RS-485 communications.

10.1 ComPortConfigurator User Manual The purpose of this application is to simplify configuration and installation of Serial over Ethernet communication driver and service for Insulgard device and software application.

ComPortConfigurator application installs the driver and service and provides UI for adding, deleting of virtual serial ports as well as service control parameters.

Before using the software, operator must have Insulgard device IP address already assigned. To verify that the device is accessible use PING command with the device IP address as a parameter, like

ping 192.168.1.1

If the device responds (with replies, not the timeouts), operator may use the software.

The software may be started using desktop shortcut or through Windows start menu command Start Programs Com Port RedirectorComPortConfigurator

Once application starts, it will launch the service and display the following panel.



Click <Add> button to create a new virtual serial port. Once Dialog panel like one below will be displayed, operator can select a desired COM port from a dropdown list and enter the assigned device IP address.

Attention! Clicking OK will initiate driver installation.

The installation process consists of two visually identical steps.

User should use the suggested choices, like on the screenshots below as they are not always the same as Windows default ones.



Driver Installation Step 1.

Driver Installation Step 2



After installation completed, virtual COM port is ready to use.

<Update> command button on the main configuration panel allows modifying virtual COM port IP address settings.

<Setting> command button on the main configuration panel provides tools for adjusting service parameters; the most important one is Autostart. Selecting this option will cause the service to start automatically at Windows boot.



Service Menu Access through System Tray Icon

Start Configuration loads Configuration application

Stop Service suspends service activity

View log – shows service lof entries

Exit – terminates service.


112

These instruction materials are published solely for information purposes and should not be considered all-inclusive. If further information is required, you should consult an authorized Eaton sales representative. The sale of the product shown in this literature is subject to the terms and conditions outlined in appropriate Eaton selling policies or other contractual agreement between the parties. This literature is not intended to and does not enlarge or add to any such contract. The sole source governing the rights and remedies of any purchaser of this equipment is the contract between the purchaser and Eaton. NO WARRANTIES, EXPRESSED OR IMPLIED, INCLUDING WARRANTIES OF FITNESS FOR A PARTICULAR PURPOSE OR MERCHANTABILITY, OR WARRANTIES ARISING FROM COURSE OF DEALING OR USAGE OF TRADE, ARE MADE REGARDING THE INFORMATION, RECOMMENDATIONS, AND DESCRIPTIONS CONTAINED HEREIN. In no event will Eaton be responsible to the purchaser or user in contract, in tort (including negligence), strict liability or otherwise for any special, indirect, incidental or consequential damage or loss whatsoever, including but not limited to damage or loss of use of equipment, plant or power system, cost of capital, loss of power, additional expenses in the use of existing power facilities, or claims against the purchaser or user by its customers resulting from the use of the information, recommendations and description contained herein.

Eaton Corporation Electrical Group 1000 Cherrington Parkway Moon Township, PA 15108-4312 United States 877-ETN CARE (877-386-2273) www.Eaton.com © 2010 Eaton Corporation All Rights Reserved Printed in USA PowerChain

Publication No. IB02713002E Rev. E 1 Management February 2017

PowerChain Management is a registered trademark of Eaton Corporation.

insulgard installation and operation manual - eatonpub/@electrical/documents/content/... · 10.1...

Documents