csc-121 breaker protection ied engineering and … break… · for the installation, commissioning,...

CSC-121

Breaker Protection IED

Engineering and Operation

Manual

Version：V1.00

Doc. Code: 0SF.465.020(E)

Issued Date：2012.8

Copyright owner: Beijing Sifang Automation Co., Ltd

Note: The company keeps the right to perfect the instruction. If equipments do

not agree with the instruction at anywhere, please contact our company in time.

We will provide you with corresponding service.

® is registered trademark of Beijing Sifang Automation Co., Ltd.

We reserve all rights to this document, even in the event that a patent is issued and a different commercial proprietary right is registered. Improper use, in particular reproduction and dissemination to third parties, is not permitted.

This document has been carefully checked. If the user nevertheless detects any errors, he is asked to notify us as soon as possible.

The data contained in this manual is intended solely for the IED description and is not to be deemed to be a statement of guaranteed properties. In the interests of our customers, we constantly seek to ensure that our products are developed to the latest technological standards as a result it is possible that there may be some differences between the hardware/software product and this information product.

Manufacturer: Beijing Sifang Automation Co., Ltd.

Tel: +86 10 62962554, +86 10 62961515 ext. 8998 Fax: +86 10 82783625 Email: [email protected] Website: http://www.sf-auto.com

Add: No.9, Shangdi 4th Street, Haidian District, Beijing, P.R.C.100085

Preface

Purpose of this manual

This manual describes operation, installation, commissioning, protection test

and putting the IED into service. The manual includes the following chapters:

Introduction, this chapter presents the basic content and have a brief

introduction of this manual

Local human machine interface, this chapter presents the configuration

of HMI interface and how to use the HMI

Installing the IED, this chapter introduces the procedure to install IED and

how to check that the IED is properly connected to the protection system

Read and change setting, this chapter introduces how to read and

change the setting value via LHMI or software tool, and switch the setting

value group

Testing the communication connection and time synchronization, this

chapter presents how to test the communication port connection and

introduces how to test time synchronization

IED testing, this chapter contains that what should be tested and how to

test the IED

Operating maintenance, this chaper describes the items for maintenance

and how to maintain the IED when operating

Transportion and storage, this chapter presents how to transport and

store the IED

Appendix, this chapter presents the significant data and diagram of the

IED

Target audience

This manual mainly face to installation engineer, commissioning engineer and

operation engineer with perfessional electric and electrical knowledge, rich

experience in protection function, using protection IED, test IED, responsible

for the installation, commissioning, maintenance and taking the protection

IED in and out of normal service.

Applicability of this manual

This manual is valid for CSC-121 Breaker Protection IED.

Technical support

In case of further questions concerning the CSC family, please contact Sifang

compay or your local Sifang representative.

Safety information

Strictly follow the company and international safety regulations.

Working in a high voltage environment requires serious approch to

aviod human injuries and damage to equipment

Do not touch any circuitry during operation. Potentially lethal

voltages and currents are present

Avoid to touching the circuitry when covers are removed. The IED

contains electirc circuits which can be damaged if exposed to static

electricity. Lethal high voltage circuits are also exposed when covers

are removed

Using the isolated test pins when measuring signals in open circuitry.

Potentially lethal voltages and currents are present

Never connect or disconnect wire and/or connector to or from IED

during normal operation. Dangerous voltages and currents are

present. Operation may be interrupted and IED and measuring

circuitry may be damaged

Always connect the IED to protective earth regardless of the

operating conditions. Operating the IED without proper earthing may

damage both IED and measuring circuitry and may cause injuries in

case of an accident.

Do not disconnect the secondary connection of current transformer

without short-circuiting the transformer’s secondary winding.

Operating a current transformer with the secondary winding open will

cause a high voltage that may damage the transformer and may

cause injuries to humans.

Do not remove the screw from a powered IED or from an IED

connected to power circuitry. Potentially lethal voltages and currents

are present

Using the certified conductive bags to transport PCBs (modules).

Handling modules with a conductive wrist strap connected to

protective earth and on an antistatic surface. Electrostatic discharge

may cause damage to the module due to electronic circuits are

sensitive to this phenomenon

Do not connect live wires to the IED, internal circuitry may be

damaged

When replacing modules using a conductive wrist strap connected to

protective earth. Electrostatic discharge may damage the modules

and IED circuitry

When installing and commissioning, take care to avoid electrical

shock if accessing wiring and connection IEDs

Changing the setting value group will inevitably change the IEDs

operation. Be careful and check regulations before making the

change

Contents

Chapter 1 IED introduction ............................................................................................................... 1

Chapter 2 Local human machine interface .................................................................................... 3

1 Introduction ....................................................................................................................................... 4

2 Liquid crystal display (LCD) ........................................................................................................... 6

3 Keyboard ........................................................................................................................................... 7

4 IED menu .......................................................................................................................................... 8

4.1 Menu construction ........................................................................................................... 8

4.2 Operation status ............................................................................................................... 9

4.3 Query reports ................................................................................................................. 10

4.4 Set time ........................................................................................................................... 10

4.5 Contrast ........................................................................................................................... 10

4.6 Settings ........................................................................................................................... 10

4.7 IED setting ...................................................................................................................... 12

4.8 Test binary output .......................................................................................................... 12

4.9 Testing operation ........................................................................................................... 12

Chapter 3 Installing IED .................................................................................................................. 15

1 Unpacking and checking the IED ................................................................................................ 16

2 Installing the IED ............................................................................................................................ 17

3 IED connection ............................................................................................................................... 18

3.1 IED connector ................................................................................................................. 18

3.1.1 Introduction ............................................................................................................. 18

3.1.2 Terminals of Analogue Input Module (AIM) ........................................................ 19

3.1.3 Terminals of Binary Input Module (BIM) ............................................................. 21

3.1.4 Terminals of Binary Output Module (BOM) ........................................................ 22

3.1.5 Terminals of Communication module (COM) .................................................... 26

3.1.6 Terminals of Power Supply Module (PSM) ........................................................ 27

3.1.7 RS232 port .............................................................................................................. 28

3.2 Connecting to protective earth ..................................................................................... 28

3.3 Connecting the power supply module ........................................................................ 28

3.4 Connecting to CT and VT circuits ............................................................................... 28

3.5 Connecting the binary inputs and outputs.................................................................. 28

3.6 Making the screen connection ..................................................................................... 30

3.7 RS485 and RS232 ports connection .......................................................................... 30

3.7.1 RS485 port connection ......................................................................................... 30

3.7.2 RS232 port connection ......................................................................................... 31

3.8 Connecting the GPS...................................................................................................... 31

4 Checking before energizing ......................................................................................................... 33

4.1 Introduction ..................................................................................................................... 33

4.2 Checking the protective earth connection .................................................................. 33

4.3 Checking the power supply connection ...................................................................... 33

4.4 Checking the CT and VT circuits connection ............................................................ 33

4.4.1 Checking the CT circuits connection .................................................................. 33

4.4.2 Checking the VT connection ................................................................................ 34

4.5 Checking the binary input and output connection .................................................... 34

4.5.1 Checking the binary input connection ................................................................ 34

4.5.2 Checking the binary output connection .............................................................. 35

4.6 Checking the screened cables connection ................................................................ 35

4.7 Checking the RS485 and RS232 port connectios .................................................... 35

4.7.1 Checking the RS485 port connection ................................................................. 35

4.7.2 Checking RS232 port connection ....................................................................... 35

4.8 Checking GPS connection ........................................................................................... 35

4.9 Checking the insulation voltage and insulation resistance ..................................... 35

4.9.1 Checking the insulation voltage .......................................................................... 35

4.9.2 Checking the insulation resistance ..................................................................... 36

5 Checking after energizing ............................................................................................................ 37

5.1 Introduction ..................................................................................................................... 37

5.2 Test LCD ......................................................................................................................... 37

5.3 Test the keyboard .......................................................................................................... 37

5.4 Setting the IED time ...................................................................................................... 37

5.5 Self-supervision HMI data ............................................................................................ 38

5.6 Checking the software and hardware version ........................................................... 38

Chapter 4 Read and change setting ............................................................................................. 39

1 Read and change the setting vaule ............................................................................................ 40

1.1 Read and change the setting value via LHMI ........................................................... 40

1.1.1 Introduction ............................................................................................................. 40

1.1.2 Communication parameter ................................................................................... 40

1.1.3 Equipment parameter ........................................................................................... 41

1.1.4 Setting values and binary settings for protection function ............................... 41

2 Switching the setting group .......................................................................................................... 49

2.1 Introduction ..................................................................................................................... 49

2.2 Method for switching setting group via LHMI ............................................................ 49

2.3 Method for switching setting group via binary input ................................................. 49

Chapter 5 Testing the communication connection and time synchronization ......................... 51

1 Testing the communication connection ...................................................................................... 52

1.1 Testing the Ethernet communication .......................................................................... 52

1.1.1 Testing the electrical Ethernet communication ................................................. 52

1.1.2 Testing the optical Ethernet communication ...................................................... 52

1.2 Testing the RS485 port................................................................................................. 52

1.3 Testing the RS232 port................................................................................................. 52

2 Testing the time synchronization ................................................................................................. 54

2.1 Network mode ................................................................................................................ 54

2.2 Pulse mode .................................................................................................................... 54

2.3 IRIG-B mode .................................................................................................................. 54

Chapter 6 IED testing ...................................................................................................................... 55

1 Introduction ..................................................................................................................................... 56

2 Points for attention during testing................................................................................................ 58

3 Preparing for test ........................................................................................................................... 60

3.1 Introduction ..................................................................................................................... 60

3.2 Connecting test equipment to IED .............................................................................. 60

4 Testing the power supply .............................................................................................................. 62

4.1 Checking the self-startup performance ...................................................................... 62

4.2 DC power on and power off testing............................................................................. 62

4.3 Checking the expiry date of power supply ................................................................. 62

5 Checking the analog channel ...................................................................................................... 63

5.1 Checking the zero drift .................................................................................................. 63

5.2 Calibrating ....................................................................................................................... 63

5.3 Checking the accuracy and the linearity of analog quantitis ................................... 63

5.4 Checking the polarity of analog quantities ................................................................. 64

6 Testing binary input ....................................................................................................................... 65

7 Testing binary output ..................................................................................................................... 66

8 Verifying the IED functions ........................................................................................................... 67

8.1 Overcurrent protection .................................................................................................. 67

8.1.1 Verifying the settings ............................................................................................. 67

8.1.2 Completing the test ................................................................................................ 75

8.1.3 Reference setting list for test ............................................................................... 75

8.2 Earth fault protection ..................................................................................................... 77




8.3 Neutral earth fault protection ........................................................................................ 88




8.4 Sensitive earth fault protection .................................................................................... 96


8.4.2 Completing the test .............................................................................................. 102

8.4.3 Reference setting list for test ............................................................................. 102

8.5 Negative sequence overcurrent protection .............................................................. 104

8.5.1 Verifying the settings ........................................................................................... 104



8.6 Thermal overload protection ...................................................................................... 108




8.7 Overload protection ..................................................................................................... 112




8.8 Overvoltage protection ............................................................................................... 115


8.8.2 Completing the test ............................................................................................. 121


8.9 Undervoltage protection ............................................................................................. 122




8.10 Displacement voltage protection ............................................................................... 131




8.11 Circuit breaker failure protection ............................................................................... 134

8.11.1 Verifying the settings of stage 1 of CBF protection ........................................ 134



8.12 Dead zone protection .................................................................................................. 143




8.13 STUB protection .......................................................................................................... 146




8.14 Poles discordance protection .................................................................................... 149




8.15 Synchro-check and energizing check function ....................................................... 155




8.16 Auto-reclosing function ............................................................................................... 171




8.17 Current transformer secondary circuit supervision ................................................. 176




8.18 Voltage transformer secondary circuit supervision ................................................ 178




8.19 Monitoring function ...................................................................................................... 188

8.19.1 Reference voltage monitoring ............................................................................ 188

8.19.2 Auxiliary contact of circuit breaker monitoring ................................................. 188

9 Checking before operation ......................................................................................................... 190

9.1 Checking the LED ........................................................................................................ 190

9.2 Checking the display on LCD..................................................................................... 190

9.3 Checking the clock ...................................................................................................... 190

9.4 Checking the voltage and current ............................................................................. 190

9.5 Checking the setting group ........................................................................................ 190

9.6 Checking the setting .................................................................................................... 190

9.7 Checking the binary input ........................................................................................... 191

9.8 Checking the normal operation mode ....................................................................... 191

9.8.1 Trip and close test with the circuit breaker ....................................................... 191

9.9 Put into operation ......................................................................................................... 191

Chapter 7 Operating maintenance .............................................................................................. 193

1 Attentions during operating ........................................................................................................ 194

2 Routine checking ......................................................................................................................... 196

3 Periodical checking ..................................................................................................................... 197

4 Operation after updating software or replacing modules ....................................................... 198

4.1 Operation after updating software or replacing CPU module ............................... 198

4.2 Operation after updating software or replacing communication module ............. 198

4.3 Operation after replacing the binary input or output module ................................. 199

4.4 Operation after replacing the analog input module ................................................ 199

4.5 Operation after replacing power supply module ..................................................... 199

5 The alarm information and measure ......................................................................................... 200

5.1 Alarm information class I and the measure ............................................................. 200

5.2 Alarm information class II and the measure ............................................................ 200

Chapter 8 Transportation and storage ........................................................................................ 203

1 Transportion.................................................................................................................................. 204

2 Storage .......................................................................................................................................... 205

Chapter 9 Appendix ....................................................................................................................... 207

1 Arrangement diagram of modules ............................................................................................. 208

2 Typical diagram ............................................................................................................................ 209

Chapter 1 IED Introduction

1


About this chapter

This chapter presents the overview of the operation and

engineering about the IED.


2

The Human Machine Interface (HMI) on the IED provides an ideal

mechanism for the day to day operation and even advanced use of the IED.

The keyboard, LCD and LEDs on the front of the IED are what constitute the

HMI. Troubleshooting, monitoring, setting and configuring are all possible via

this interface. Through the screens and menu elements available, as well as

the keypad, the user is able to navigate throughout the menu structure and

move from screen to screen.

The IED is unpacked and visually checked. The connection to the protection

system has to be checked in order to verify that the installation is successful.

The settings for each function must be calculated before the commissioning

task. The functions setting menu have been listed in detail so that the user

can find and change the required settings directly and correctly. For the

different application, the IED can be performed conveniently through

switching the setting group.

For the functions included in the IED can be tested by users, the testing

procedure have been listed as reference to verify that protection function

operate correctly.

After the IED is in service, some checking items also need to be done for

maintenance in order to ensure that the IED is in good condition during

operation, some suggestions have been preset as reference and the user can

perform some other checking items according to the relevant regulations.

Chapter 2 Local human machine interface

3

Chapter 2 Local human machine

interface

About this chapter

This chapter describes the structure of human-machine

interface (HMI), LCD, LED, keyboard, RS232 and IED menu.

Instruction on how to operate with keys, how to configure the

LED and menu information introduction.


4

1 Introduction

The HMI is simple and easy to be used for routine operation, the front panel

of the HMI consists of LCD, LED and keyboard. As shown in the following

picture, the setting, configuration, monitoring, maintenance and fault analysis

can be performed in HMI.

2

1

3

45

68

7

CSC-121

Figure 1 Front plate with 8 LEDs

2

1

3

45

68

7

CSC-121

Figure 2 Front plate with 20 LEDs

1. Liquid crystal display (LCD)

2. LEDs


5

3. Shortcut function keys

4. Arrow keys

5. Reset key

6. Quit key

7. Set key

8. RS232 communication port


6

2 Liquid crystal display (LCD)

The LCD background of HMI is blue, 8 lines with up to 28 characteristics per

line can be displayed.

When operating keys are pressed or in the case of IED alarming or operating

report appearance, the back light will turn on automatically until the preset

time delay elapse after the latest operation or alarm.


7

3 Keyboard

The keyboard is used to monitor and operate IED. The keyboard has the

same look and feel in CSC family. As shown in Figure 1and Figure 2,

keyboard is divided into Arrow keys, Reset key, Quit key, Set key and shorcut

function keys. The specific instructions on the keys as the following table

described:

Table 1 Keys on the front of the IED

Key Function

Up arrow key Move up in menu

Page up between screens

Increase value in setting

Down arrow key Move down in menu

Page down between screens

Decrease value in setting

Left arrow key Move left in menu

Right arrow key Move Right in menu

Reset key Reset the LEDs

Return to normal scrolling display state directly

Set key Enter main menu or submenu

Confirm the setting change

Quit key Back to previous menu

Cancel the current operation and back to previous menu

Return to scrolling display state

Lock or unlock current display in the scrolling display state (the

lock state is indicated by a key type icon on the upright corner of

the LCD)


8

4 IED menu

4.1 Menu construction

OpStatus

QueryRpt

Set Time

Contrast

Settings

Setup

Test BO

Testing

AI Version

BIEquipCode

Measure

EventRpt Log

Cur Time Set Time

TestEffect

Protocol

ModifyPW

SOEReset

SetPrint

103Type

ProtSet

EquipPara

SimuReSig SwSetGr

ViewDrift AdjDrift

ViewScale AdjScale

PrtSample

CommuPara

ProtContWdMainMenu

AI DisplaySet

StartRpt


9

Table 2 Full name for the menu

Sub-menu Full name Sub-sub menu Full name

OpStatus Operation status

AI Analog input

EquipCode Equipment code

Measure Measurement quantity

Version IED version

BI Binary input

QueryRpt Query reports

EventRpt Event reports

AlarmRpt Alarm reports

Log Operation logging

Set time Setting time Cur Time Current time

Set Time Set time

Contrast LCD contrast TestEffect Test effect

Settings Setting value

CommuPara Communication parameter

ProtSet Protection setting

EquipPara Equipment parameter

PortContwd Protection binary setting

Setup IED setting

SOEReset SOE reset selection

ModifyPW Modify password

SetPrint Setting the print

Protocol Protocol selection

103Type 103 function type

Test BO Test binary output

Testing Testing operation

SimuReSig Simulation remote signalization

ViewDrift View zero drift

ViewScale View scale

PrtSample Print sample value

SwSetGr Switch setting group

AdjDrift Adjust zero drift

AdjScale Calibrating

4.2 Operation status

Sub menu Sub-sub menu Explanation

OpStatus

AI Read the secondary analogue of the selected CPU

module

EquipCode Read the versions, released time and CSC code of all

modules

Measure Read the analogue value and calculation value

Version Read the IED type, date and CPU version

BI Read the current status of binary inputs, ―Off‖ or ―On‖


10

4.3 Query reports

Sub

menu

Sub-sub menu Sub-sub-sub

menu

Explanation

QueryRpt

EventRpt Latest Rpt Query the latest event report, press the Set

key to see the report

Last 6 Rpts Query the latest six event reports, press the

Set key to see the report

QueryRpt by

Date Query the reports by date

AlarmRpt Last 6 Rpts Query the latest six alarm reports, press the

Set key to see the report

QueryRpt by


Log Last 6 Rpts Query the latest six operation reports, press

the Set key to see the report

QueryRpt by


4.4 Set time


Set time Cur Time

Modify the time with arrow keys Set Time

4.5 Contrast


Contrast TestEffect Modify the contrast with arrow keys

4.6 Settings

Sub

menu


menu

Explanation

Settings CommuPara

BayName Enter into the line name

TimeMode NetworkTimeMode

PulseTimeMode

IRIG-B TimeMode

CommAddr Enter into the LON and RS485 address, and

the Ethernet 1 and Ethernet 2 address


11

Sub

menu


menu

Explanation

BaudR485 Selection with up or down buttons

ProtSet

Common Common protection setting in this menu

EF Protection setting relation with earth fault

protection

SEF Protection setting relation with sensitive

earth fault protection

STUB Protection setting relation with STUB

protection

3V0 Protection setting relation with displacement

voltage protection

CBF_PD_DZ Protection setting relation with circuit

breaker failure, pole discordance and dead

zone protection

OC Protection setting relation with overcurrent

protection

NOC Protection setting relation with neutral

overcurrent protection

NSOC Protection setting relation with negative

sequence protection

Thermal OL Protection setting relation with thermal

overload protection

OV_UV Protection setting relation with overvoltage

and undervoltage protection

AR Protection setting relation with

auto-reclosuing protection

EquipPara

PortContwd

Common Common binary setting in this menu

EF Protection binary setting relation with earth

fault protection

SEF Protection binary setting relation with

sensitive earth fault protection

STUB Protection binary setting relation with STUB

protection

3V0 Protection binary setting relation with

displacement voltage protection

CBF_PD_DZ Protection binary setting relation with circuit

breaker failure, pole discordance and dead

zone protection

OC Protection binary setting relation with


NOC Protection binary setting relation with neutral


12

Sub

menu


menu

Explanation


NSOC Protection binary setting relation with

negative sequence protection

Thermal OL Protection binary setting relation with

thermal overload protection

OV_UV Protection binary setting relation with

overvoltage and undervoltage protection

AR Protection binary setting relation with

auto-reclosuing protection

4.7 IED setting

Sub

menu


menu

Explanation

Setup

SOEReset

Manual Reset

Automatic

Reset

Really Reset

ModifyPW The fatory password: 8888

103Type IEC60870-5-103 code

Protocol If communication with automation system

via RS485 port, this item can be ignored

AI DisplaySet Display Sec Ai Display secondary analog input quantity

Display Pri Ai Display primary analog input quantity

4.8 Test binary output

Sub

menu


menu

Explanation

Test BO

4.9 Testing operation

Sub

menu


menu

Explanation

Testing SimuReSig

Simu Alarm

Using―√‖ or ―X‖ to select the simulation point Simu Connt

TransRecData


13

Sub

menu


menu

Explanation

Simu Trip

Simu BI

Simu MST

Alarm

ViewDrift

Enter into the CPU number

ViewScale

PrtSample

SwSetGr

AdjDrift

AdjScale


14

Chapter 3 Installing IED

15


About this chapter

This chapter describes how to install the protection IED,

introduces connection of the contactor, analogue quantities,

binary inputs and outputs and power supply, and what should to

do before and after energizing.


16

1 Unpacking and checking the IED

Procedure:

1. Remove the transporting case

2. Visually inspect the IED

3. Check all items included in accordace with the delivery documents. Once

the IED has been started make sure that the software functions ordered

have been included in the delivery

4. Check for transport damages

If transport damage is discovered appropriate action must be taken

against the latest carrier and the latest SiFang office or representative

should be informed. If there are any discrepancies in relation to the

delivery documents, the SiFang company should be notified immediately

5. If the protection IED is repacked for transport again, the storage packing

of the IED must provide proper degree of protection against possible

damage, in accordance with the standard of IEC 60255-21-1 class 1 and

IEC 60255-21-2 class 1


17

2 Installing the IED

Procedure:

1. Insert the IED into cabinet and the bottom of the IED should be supported

on the frame of cabinet

2. Fix the IED by tightening all screws against the cabinet. The IED should

be fixed in the cabinet and each screw should be firmed

3. Connect the earthing screw on the rear panel to the nearest protective

earthing point in the cubicle. The protective earth cables should be green

or yellow conductors with cross-sectional area 2.5mm2 according to

electrical regulations and electrical standards requirement

The cubicle must be properly connected to station earthing system, using

the conductor with cross-sectional area of at least 4mm2.

4. Power supply module connection

The wiring from the cubicle terminal block to the IED terminals must be

connected in accordance with the established guidelines for this type of

IED. The wires from binary inputs and outputs and the auxiliary power

supply must be routed separated from the current transformer cables

between the terminal blocks of the cubicle and the IEDs connections.

5. Connection to CT and VT circuits

CT and VT are connected to the analogue input module on the rear side

of the IED.

Using solid conductor with cross-sectional 2.5-6mm2 (AWG14-10) or

stranded conductor with cross-sectional 2.5-4mm2 (AWG14-12). The

screws used for fixation conductor should be tightened.

6. Connecting the binary input and output signals

Auxiliary power supply and binary input and output signals are connected

using female connectors. Signal wires are connected to a female

connector, which is then plugged into the corresponding male connector,

located at the rear of the IED.


18

3 IED connection

3.1 IED connector

3.1.1 Introduction

The quantity and designation of connectors depend upon the ordering

information and application. The rear cover plates are prepared with enough

space for each configuration in ordering information and the cut-outs that are

not in use are covered with a plate from factory.


19

3.1.2 Terminals of Analogue Input Module (AIM)

Terminals of Analogue Input Module B

b01 a01

b02 a02

b03 a03

a04b04

a05b05

a06b06

a07b07

a08b08

a09b09

a10b10

a11b11

ab

a12b12

Figure 3 Terminals arrangement of AIM B

Table 3 Description of terminals of AIM B

Terminal Analogue

Input

Remark

a01 IA Star point

b01 I’A

a02 IB Star point

b02 I’B

a03 IC Star point

b03 I’C

a04 I’N

b04 IN Star point

a05 Null

b05 Null

a06 Null

b06 Null

a07 Null

b07 Null

a08 Null

b08 Null

a09 Null

b09 Null

a10 Null

b10 Null

a11 Null

b11 Null

a12 Null

b12 Null


20

Terminals of Analogue Input Module E

b01 a01

b02 a02

b03 a03

a04b04

a05b05

a06b06

a07b07

a08b08

a09b09

a10b10

a11b11

ab

a12b12

Figure 4 Terminals arrangement of AIM E

Table 4 Description of terminals of AIM E

Terminal Analogue

Input

Remark

a01 IA Star point

b01 I’A

a02 IB Star point

b02 I’B

a03 IC Star point

b03 I’C

a04 I’N

b04 IN Star point

a05 I’5

b05 I5 Star point

a06 Null

b06 Null

a07 Null

b07 Null

a08 Null

b08 Null

a09 Null

b09 Null

a10 U4 Star point

b10 U’4

a11 UB Star point

b11 UC Star point

a12 UA Star point

b12 UN


21

3.1.3 Terminals of Binary Input Module (BIM)

c02 a02

c04 a04

c06 a06

a08c08

a10c10

a12c12

a14c14

a16c16

a18c18

a20c20

a22c22

a24c24

a26c26

a28c28

a30c30

a32c32

ac

DC -DC -

Figure 5 Terminals arrangement of BIM

Table 5 Description of terminals of BIM

Terminal Definition Remark

a02 BI1 BI group 1

c02 BI2 BI group 2

a04 BI3 BI group 1

c04 BI4 BI group 2

a06 BI5 BI group 1

c06 BI6 BI group 2

a08 BI7 BI group 1

c08 BI8 BI group 2

a10 BI9 BI group 1

c10 BI10 BI group 2

a12 BI11 BI group 1

c12 BI12 BI group 2

a14 BI13 BI group 1

c14 BI14 BI group 2

a16 BI15 BI group 1

c16 BI16 BI group 2

a18 BI17 BI group 1

c18 BI18 BI group 2

a20 BI19 BI group 1

c20 BI20 BI group 2

a22 BI21 BI group 1

c22 BI22 BI group 2

a24 BI23 BI group 1

c24 BI24 BI group 2

a26 BI25 BI group 1

c26 BI26 BI group 2

a28 BI27 BI group 1

c28 BI28 BI group 2

a30 BI29 BI group 1

c30 BI30 BI group 2

a32 DC - Input

Common

terminal of BI

group 1

c32 DC - Input

Common

terminal of BI

group 2


22

3.1.4 Terminals of Binary Output Module (BOM)

Binary Output Module A

The module provides 16 output relays for tripping or initiating, with total 16 contacts.

a02

R

1

a04

a06

a08

a10

a12

a14

a16

a18

a20

a22

a24

a26

a28

a30

a32

ac

c02

c04

c06

c08

c10

c12

c14

c16

c18

c20

c22

c24

c26

c28

c30

c32

R

3

R

5

R

7

R

9

R

11

R

13

R

15

R

16

R

2

R

4

R

6

R

8

R

10

R

12

R

14

Figure 6 Terminals arrangement of BOM A


23

Table 6 Description of terminals of BOM A

Terminal Definition Related relay

a02 Trip contact 1-0 Output relay 1

c02 Trip contact 1-1 Output relay 1
































24

Binary Output Module C

The module provides 16 output relays for signal, with total 19 contacts.

a02

a04

a06

a08

a10

a12

a14

a16

a18

a20

a22

a24

a26

a28

a30

a32

ac

c02

c04

c06

c08

c10

c12

c14

c16

c18

c20

c22

c24

c26

c28

c30

c32

R

4

R

5

R

1

R

2

R

3

R

6

R

7

R

16

R

9

R

10

R

11

R

12

R

13

R

14

R

15

R

8

Figure 7 Terminals arrangement of BOM C


25

Table 7 Description of terminals of BOM C

Terminal Definition Related relay

a02 Signal 1-0, Common terminal of signal contact group 1

c02 Signal 2-0, Common terminal of signal contact group 2

a04 Signal contact 1-1 Output relay 1

c04 Signal contact 2-1 Output relay 1





a10 Signal 3-0, Common terminal of signal contact group 3

c10 Signal 4-0, Common terminal of signal contact group 4
























26

3.1.5 Terminals of Communication module (COM)

01

02

03

04

05

06

07

08

09

10

11

12

13

14

15

16

Ethernet port B

Ethernet port A

Ethernet port C

Figure 8 Terminals arrangement of COM

5

6

7

8

9

10Ethernet

port

Figure 9 Examples of COM module

Table 8 Description of terminals of COM

Terminal Definition

01 Null

02 Null

03 Null

04 Null

05 Optional RS485 port - 2B

06 Optional RS485 port - 2A

07 Optional RS485 port - 1B

08 Optional RS485 port - 1A

09 Time synchronization

10 Time synchronization GND

11 Null

12 Null

13 Null

14 Null

15 Null

16 Null

Ethernet

Port A

Optional optical fiber or RJ45

port for station automation

system

Ethernet

Port B



system

Ethernet

Port C



system


27

3.1.6 Terminals of Power Supply Module (PSM)

c02 a02

c04 a04

c06 a06

a08c08

a10c10

a12c12

a14c14

a16c16

a18c18

a20c20

a22c22

a24c24

a26c26

a28c28

a30c30

a32c32

ac

DC 24V +

OUTPUTS

DC 24V -

OUTPUTS

AUX.DC +

INPUT

AUX. DC -

INPUT

Figure 10 Terminals arrangement of PSM

Table 9 Description of terminals of PSM

Terminal Definition

a02 AUX.DC 24V+ output 1

c02 AUX.DC 24V+ output 2

a04 AUX.DC 24V+ output 3

c04 AUX.DC 24V+ output 4

a06 Isolated terminal, not wired

c06 Isolated terminal, not wired

a08 AUX.DC 24V- output 1

c08 AUX.DC 24V- output 2





a14 Alarm contact A1, for

AUX.DC power input failure

c14 Alarm contact A0, for


a16 Alarm contact B1, for


c16 Alarm contact B0, for




a20 AUX. power input 1, DC +

c20 AUX. power input 2, DC +

a22 AUX. power input 3, DC +

c22 AUX. power input 4, DC +



a26 AUX. power input 1, DC -

c26 AUX. power input 2, DC -

a28 AUX. power input 3, DC -

c28 AUX. power input 4, DC -



a32 Terminal for earthing

c32 Terminal for earthing


28

3.1.7 RS232 port

RS232 serial port is located on front panel, the software tool in PC can be

connected with the IED via this port to make setting, testing and cofiguration,

etc.

3.2 Connecting to protective earth

Connect the earthing screw on the rear panel to the nearest protective

earthing point in the cubicle. The protective earth cables should be green or

yellow conductors with cross-sectional area 2.5mm2 according to electrical

regulations and electrical standards requirement.

The cubicle must be properly connected to station earthing system, using the

conductor with cross-sectional area of at least 4mm2.

3.3 Connecting the power supply module

The wiring from the cubicle terminal block to the IED terminals must be

connected in accordance with the established guidelines for this type of IED.

The wires from binary inputs and outputs and the auxiliary power supply must

be routed separated from the current transformer cables between the terminal

blocks of the cubicle and the IEDs connections.

3.4 Connecting to CT and VT circuits

CT and VT are connected to the analogue input module on the rear side of

the IED.

Using solid conductor with cross-sectional 2.5-6mm2 (AWG14-10) or stranded

conductor with cross-sectional 2.5-4mm2 (AWG14-12). The screws used for

fixation conductor should be tightened.

3.5 Connecting the binary inputs and outputs

Auxiliary power supply and binary input and output signals are connected

using female connectors. Signal wires are connected to a female connector,

which is then plugged into the corresponding male connector, located at the


29

rear of the IED.

Procedure:

1. Connect wire to the female connector

All wiring to the female connector should be done before it is plugged into

the male part and screwed to the case. The conductors can be of rigid

type (solid, stranded) or of flexible type.

The female connectors accept conductors with a cross section area of

0.2-1.5 mm2 (AWG 24-15). If two conductors are used in the same

terminal, the maximum permissible cross section area is 0.2-0.8 mm2

(AWG 24-18, each conductor corresponding to one cross section area).

If two conductors, each with area 1.5 mm2 (AWG 15) need to be

connected to the same terminal, a ferrule must be used to combine the

two conductors, no soldering is needed.

Press the locking button by screwdriver to insert the wiring with ferrule

into the connector, move away the screwdriver after the ferrule has been

inserted into the connector completely to lock the wiring tightly. The follow

picture illustrates this process.

Figure 11 Connection illustration without inserting the connector


30

Figure 12 Connection illustration with inserting the connector

2. Plug the connector to the corresponding back-side mounted male

connector

3. Lock the connector by fastening the lock screws

3.6 Making the screen connection

When using screened cables always make sure screens are earthed and

connected according to applicable engineering methods. This may include

checking for appropriate earth points near the IED, for instance, in the cubicle

and/or near the source of measuring. Ensure that earth connections are

made with short conductors of an adequate cross section, at least 6 mm2

(AWG10) for single screen connections.

3.7 RS485 and RS232 ports connection

3.7.1 RS485 port connection

The RS485 interface is capable of half-duplex service with the signals A/A'

and B/B' to transmit signals.


31

The network topology of RS485 adopts bus type of terminal matched, do not

support ring or star network. Use the single and continuous channel as bus.

The terminating resistance is located on beginning and terminal of the bus

cable. The other ports do not need the terminating resistance.

As shown in Figure 8 and Figure 9, RS485 port located on the rear side of

communication module. The IED provides two electrical isolation RS485

ports, the two ports can work at the same time with IEC60870-5-103 protocol

supported.

3.7.2 RS232 port connection

One RS232 serial port is provided and located on front panel, which is used to

connect personal computer. The RS232 port adopts half-dupex

communication mode, usually which is connected with 9-pin D-subminiature

female connectors

Connection method: direction connection cable for serial port, the IED

terminal is pins and the PC termianl is female connector. The terminal of 2, 3,

4 and 5 is connected directly. As shown in the following picture:

Figure 13 Example for serial port connection

The line 4 must be connected directly

3.8 Connecting the GPS

Mount the GPS antenna on the building roof or the place of visibility to all

direction is obtained, top of the antenna should be horizontal. Mount the

antenna to console and fix the console on the building roof with expansion

bolts. The turning radius should not be too small when laying the cables. The

length of antenna cables is designed strictly based on antenna gain, so, it is

not allowed to lengthen, shorten or add connectors that will affect signal


32

reception or can't receive any signals.

The principle for mounting GPS antenna is that the position is visible

completely to all directions in 360°, however, for some special conditions,

mount the antenna at the place with best visibility as far as possible.

The GPS port is located on the rear side of communication module, as shown

in Figure 8 and Figure 9, which can be connected with screened twist-pair

cable.


33

4 Checking before energizing

4.1 Introduction

After completing the IED connections, the related connections need to be

checked, this section descirbes what should be checked before energizing.

This is done with IED and all connected circuits de-energized.

4.2 Checking the protective earth connection

Check the protective earthing connection of IED is connected reliably in

accordance with the related electrical regulations and standards.

4.3 Checking the power supply connection

Check that the auxiliary power supply voltage remains within the permissible

input voltage range under all operating conditions. Check that the polarity is

correct.

4.4 Checking the CT and VT circuits connection

4.4.1 Checking the CT circuits connection

Check that the wiring is in strict accordance with the supplied connection

diagram. If any errors appearance, do not continue before any errors are

corrected. The following tests shall be performed on every primary CT

connected to IED:

Primary injection test to verify the current change ratio of the CT, the

correct wiring up to the protection IED and correct phase sequence

connection (i.e. A, B, C)

Polarity checking to prove that the predicted direction of secondary

current flow is correct for a given direction of primary current flow

CT secondary loop resistance measurement in order to confirm that the

current transformer secondary loop DC resistance is within specification

and that there are no high resistance joints in the CT winding or wiring


34

CT excitation test in order to confirm that the current transformer is of the

correct accuracy rating and that there are no shorted turns in the current

transformer windings. Manufacturer's design curves should be available

for the current transformer in order to compare the actual results

Check the earthing of the individual CT secondary circuits to verify that

each three-phase set of main CTs is properly connected to the station

earth and only at one electrical point

Checking the insulation resistance

Phase identification of CT shall be made

Both primary and secondary sides must be disconnected from the

line and IED when plotting the excitation characteristics

If the CT secondary circuit earth connection is removed without the

current transformer primary being de-energized, dangerous voltages

may result in the secondary CT circuits

4.4.2 Checking the VT connection

Check that the wiring is in strict accordance with the supplied connection

diagram. If any errors appearance, do not continue before any errors are

corrected.

The following tests are recommended:

Polarity check

VT circuit voltage measurement (primary injection test)

Grounding check

Phase relationship

Insulation resistance check

4.5 Checking the binary input and output connection

4.5.1 Checking the binary input connection


35

When checking the binary inputs, it's better to disconnect the binary input

connector from binary input module. Check all connected signals in order to

make sure that both the input level and polarity of voltage are in accordance

with the IEDs specifications.

4.5.2 Checking the binary output connection

When checking the binary outputs, it's better to disconnect the binary output

connector from binary output module. Check all connected signals in order to

make sure that both the input level and polarity of voltage are in accordance

with the IEDs specifications.

4.6 Checking the screened cables connection

Check that the screened cables are connected correctly.

4.7 Checking the RS485 and RS232 port connectios

4.7.1 Checking the RS485 port connection

Check that the RS485 port connections are correct.

4.7.2 Checking RS232 port connection

Check that the RS232 serial port connections are correct.

4.8 Checking GPS connection

Check that the GPS connections are correct.

4.9 Checking the insulation voltage and insulation resistance

4.9.1 Checking the insulation voltage

Using the withstand voltage tester to apply correspondung level voltage

between tested circuit and earth, and between circuits (e.g. 2000VAC


36

/2800VDC), lasting 1 min. No flashover and breakdown apperance, the

leakage current is less than 10mA.

4.9.2 Checking the insulation resistance

Using a rotating meter with 500V to test insulation resistance in turn between

analog circuits and earth, and the circuits to each other. Every resistance

must not be less than 100 MΩ. And the lasting time for resistance test is not

less than 5s to ensure that the value of insulation resistance is read in a

steady state.


37

5 Checking after energizing

5.1 Introduction

After completing of the external circuits connection, checking all connections

and energizing the IED, LCD and keyboard should be tested. Check that the

software version, serial number and the installed modules are in accordance

with ordering information. The IED time need to be set to ensure that the IED

time is synchronized with local time. The self-supervision function should also

be checked to verify that the IED operates properly.

5.2 Test LCD

After energizing the IED, the blue background of LCD light up, operate the

keys to turn pages to check that the LCD display is correct.

5.3 Test the keyboard

All the keys on front panel including Arrow keys, Reset key, Set key, Quit key

and shortcut key can be operated to check that these keys satisfy with the

correpsonding function, the detail functions of each key are described in

Table 1.

5.4 Setting the IED time

This procedure describes how to set the IED time from the local HMI.

1. Enter into the time setting menu: Set Time, press the Set button to enter

into the setting menu

2. Set the date and time

Use the Left and Right arrow buttons to move between the time and date

values (year, month, day, hours, minutes and seconds). Use the Up and

Down arrow buttons to change the value.

3. Confirm the setting

Press the Set button to set the data and clock to the new values.


38

5.5 Self-supervision HMI data

Table 10 Self-supervision HMI data

Information Detail information Possible reason and solutions

Communication

Fail

Communication

Failure

Communication fails between CPU and COM module.

In this condition either the CPU is working abnormal or

the CAN (Controller Area Network) network

communication has been interrupted. Check each CPU

working state or CAN network on backboard.

Write Set Fail Write setting failure Write setting again

Write DevPara Fail Write Device

parameter failure Write device parameter again

No response for calling CPU configuration

Maybe the address of two CPU modules are same,

one of the two modules is not inserted or connected

badly

Alarming code XX The CPU modules is disabled

5.6 Checking the software and hardware version

Enter into menu: OpStatus/EquipCode

Checking the software version: In this menu, to check the protection

programm version.

Checking the hardware version: In this menu, to check the equipment code,

the version of binary input and output module, communication module and

HMI.

Chapter 4 Read and change setting

39


About this chapter

This chapter describes how to set and read the setting values

and parameters either through LHMI or software tool, and how

to switch the setting value group.

This chapter does not contain instructions on how to calculate

the setting value, for the detail setting calculation information

please refers to the Technical application manual.


40

1 Read and change the setting vaule

1.1 Read and change the setting value via LHMI

1.1.1 Introduction

All the function settings and binary settings can be read and set through LHMI.

The user can browse to the desired settings and enter into the appropriate

vaules, The parameters for each function can be found in the LHMI. See the

Technical applciation manual for a complete list of setting parameters for

each function.

1.1.2 Communication parameter

1.1.2.1 Bay name

Enter into menu: Settings/CommPara/BayName

Check and change bay name.

1.1.2.2 Time synchronization mode

SNTP mode

Enter into menu: Settings/CommuPara/TimeMode/NetworkTimeMode

The time synchronization mode can be changed into network time mode via

this setting.

PulseTimeMode

Enter into menu: Settings/CommuPara/TimeMode/PulesTimeMode

The time synchronization mode can be changed into pulse time mode via this

setting.

IRIG-BTimeMode

Enter into menu: Settings/CommuPara/TimeMode/IRIG-BTimeMode

The time synchronization mode can be changed into IRIG-B time mode via


41

this setting.

1.1.2.3 Communication address

Enter into menu: Settings/CommuPara/CommAddr

The address of Lon network, RS485 port, Ethernet port 1and Ethernet 2 can

be modified in this setting .

1.1.2.4 485 baud rate

Enter into menu: Settings/CommuPara/BaudR485

485 baud rate is displayed and modified here.

1.1.3 Equipment parameter

Enter into menu: Settings/EquipPara

In this menu, the following items is displayed and can be modified: sampling

frequency for recording, rising or falling edge selection for each function.

All the functions are enabled or disabled via 1 or 0, 1 means enable, 0 means

disable.

Left or right keys are used to select value for pre-recording time and the up

and down keys are used to change value.

Note: when the cursor move to this item, at the bottom of screen,

displays the time limit for pre-recording time.

Left or right keys are used to select value for post-recording time and the up

and down keys are used to change value.

Note: when the cursor move to this item, at the bottom of screen,

displays the time limit for post-recording time.

1.1.4 Setting values and binary settings for protection function

1.1.4.1 Introduction

Protection setting


42

The menu of protection setting is used to check and modify every function

setting, using left and right button to chose the vaule and the up and down

buttons are used to modify the value, the upper and lower limits of setting

value will be displayed when the cursor move to corresponding setting items.

Protection binary setting

The protection binary settings are used to enable or disable each function,

1means enable and 0 means disable.

1.1.4.2 Common setting

1.1.4.2.1 Time for relay reset

Enter into menu: Settings/ProtSet/Pls Input SetGrNo/Common

Check and set the time for relay reset.

1.1.4.2.2 Rated value of line voltage


Check and set the primary and secondary rated value of line voltage.

1.1.4.2.3 Rated current value


Check and set the primary and secondary rated current value.

1.1.4.3 Common binary setting

1.1.4.3.1 VT conneted from line side

Enter into menu: Settings/ProtContwd/Pls Input SetGrNo/Common

Enable or disable the VT connected from line side or bus side.

1.1.4.3.2 Switch setting group by binary input


Enable or disable the setting group is switched by binary input.


43

1.1.4.3.3 Test mode


Enable or disable the test mode

1.1.4.3.4 Block remote access


Enable or disable the function of block remote access.

1.1.4.3.5 I5 for SEF


Enable or disable the the I5 current channel is appiled for SEF function or

NOC function.

1.1.4.4 Overload function

Enter into menu: Settings/Test Menu/Pls Input SetGrNo/Common

Enable or disable the binary setting for overload function.

1.1.4.5 Overcurrent protection

Enter into menu: Settings/ProtContwd/Pls Input SetGrNo/OC

Enable or disable the definite time stage and inverse time stage of

overcurrent protection function, and the features related with overcurrent

protection.

Enter into menu: Settings/ProtSet/Pls Input SetGrNo/OC

Check and set the various settings of overcurrent protection.

1.1.4.6 Earth fault protection

Enter into menu: Settings/ProtContwd/Pls Input SetGrNo/EF

Enable or disable the definite time stage and inverse time stage of earth fault

protection function, and the features related with earth fault protection.


44

Enter into menu: Settings/ProtSet/Pls Input SetGrNo/EF

Check and set the various settings of earth fault protection.

1.1.4.7 Neutral earth fault protection

Enter into menu: Settings/ProtContwd/Pls Input SetGrNo/NOC

Enable or disable the definite time stage and inverse time stage of neutral

earth fault protection function, and the features related with neutral earth fault

protection.

Enter into menu: Settings/ProtSet/Pls Input SetGrNo/ NOC

Check and set the various settings of neutral earth fault protection.

1.1.4.8 Sensitive earth fault protection

Enter into menu: Settings/ProtContwd/Pls Input SetGrNo/SEF

Enable or disable the definite time stage and inverse time stage of sensitive

earth fault protection function, and the features related with sensitive earth

fault protection.

Enter into menu: Settings/ProtSet/Pls Input SetGrNo/SEF

Check and set the various settings of sensitive earth fault protection.

1.1.4.9 Negative sequence overcurrent protection

Enter into menu: Settings/ProtContwd/Pls Input SetGrNo/NSOC

Enable or disable the definite time stage and inverse time stage of negative

sequence overcurrent protection function, and the features related with

sensitive earth fault protection.

Enter into menu: Settings/ProtSet/Pls Input SetGrNo/NSOC

Check and set the various settings of negative sequence overcurrent

protection.

1.1.4.10 STUB protection

Enter into menu: Settings/ProtContwd/Pls Input SetGrNo/STUB


45

Enable or disable the STUB proteciton.

Enter into menu: Settings/ProtSet/Pls Input SetGrNo/STUB

Check and set the various settings of STUB protection.

1.1.4.11 Thermal overload protection

Enter into menu: Settings/ProtContwd/Pls Input SetGrNo/Thermal OL

Enable or disable the thermal overload proteciton and relevant functions.

Enter into menu: Settings/ProtSet/Pls Input SetGrNo/Thermal OL

Check and set the various settings of thermal overload protection.

1.1.4.12 Displacement voltage protection

Enter into menu: Settings/ProtContwd/Pls Input SetGrNo/3V0

Enable or disable the displacement voltage protection and relevant functions.

Enter into menu: Settings/ProtSet/Pls Input SetGrNo/3V0

Check and set the various settings of displacement voltage protection.

1.1.4.13 Overvoltage protection

Enter into menu: Settings/ProtContwd/Pls Input SetGrNo/OV_UV

Enable or disable the overvoltage protection and relevant functions.

Enter into menu: Settings/ProtSet/Pls Input SetGrNo/OV_UV

Check and set the various settings of overvoltage protection.

1.1.4.14 Undervoltage protection

Enter into menu: Settings/ProtContwd/Pls Input SetGrNo/OV_UV

Enable or disable the undervoltage protection and functions related with

voltage protection.

Enter into menu: Settings/ProtSet/Pls Input SetGrNo/OV_UV


46

Check and set the various settings of undervoltage protection.

1.1.4.15 Circuit breaker failre protection

Enter into menu: Settings/ProtContwd/Pls Input SetGrNo/CBF_PD_DZ

Enable or disable the circuit breaker failure protection and functions related

with circuit breaker failure protection.

Enter into menu: Settings/ProtSet/Pls Input SetGrNo/CBF_PD_DZ

Check and set the relevant settings of circuit breaker failure protection.

1.1.4.16 Poles discordance protection


Enable or disable the poles discordance protection and functions related with

poles discordance protection.


Check and set the relevant settings of poles discordance protection.

1.1.4.17 Dead zone protection


Enable or disable the dead zone portection.


Check and set the relevant settings of dead zone protection.

1.1.4.18 Auto-reclosing function

Enter into menu: Settings/ProtContwd/Pls Input SetGrNo/AR

Enable or disable the modes of auto-reclosing and the relevant discrimination

and functions for auto-reclosing funtion.

Enter into menu: Settings/ProtSet/Pls Input SetGrNo/AR

Check and set the the relevant settings for each shot and the disrimination


47

setting.

1.1.4.19 Synchro-check and energizing check function

Enter into menu: Settings/ProtContwd/Pls Input SetGrNo/AR

Enable or disable the modes for synchro-check and energizing check

function.

Enter into menu: Settings/ProtSet/Pls Input SetGrNo/AR

Check and set the the various settings for synchro-check and energizing

check function.

1.1.4.20 Overload protection


Enable or disable the function of overload protection.


Check and set the various settings of overload protection.

1.1.4.21 Current transformer secondary circuit supervision


Enable or disable the function of current transformer secondary circuit

supervision.


Check and set the various settings of current transformer secondary circuit

supervision.

1.1.4.22 Voltage transformer secondary circuit supervision

1.1.4.22.1 VT scondary circuit supervision


Enable or disable the function of voltage transformer secondary circuit

supervision.


48


Check and set the the various settings of voltage transformer secondary

circuit supervision.

1.1.4.22.2 Earthed system


Enable or disable the power system solid earthed.


49

2 Switching the setting group

2.1 Introduction

There are 9 setting groups with same setting items in the IED, for each group

settings can be set and saved separately, the different setting groups can be

switched according to different application.

2.2 Method for switching setting group via LHMI

Testing/SwSetGr/InputChgSetGrNo

The current setting group number and the chosen setting group number are

displayed in the LCD, move the cursor by left and right button and change the

value by up and down button, comfirm the result by Set button after the

setting group number is chosen.

After setting group switching success, the information about switching

success will be reported to show the setting group is switched from which

setting group to which setting group, for example, 1—>2, which means that

the group is switched from setting group 1 to group 2.

2.3 Method for switching setting group via binary input

Settings/ProtSet/Pls Input SetGrNo/Common

The binary setting "BI SetGrp Switch" in the menu described above is used

for switching setting group via binary input, when this binary setting is set to 1,

and the corresponding binary input is active, the setting group is switched

from group 1 to group 2. If the binary setting is set to 1 and the binary input is

inactive, the setting group is switched from group 2 to group 1.

Note: The method for swithing setting group via binary input is only available

for switching between group 1 and group2.


50

Chapter 5 Testing the communication connection and time synchronization

51

Chapter 5 Testing the communication

connection and time

synchronization

About this chapter

This chapter describes how to test each communication port and

the function of time synchronization.


52

1 Testing the communication connection

1.1 Testing the Ethernet communication

1.1.1 Testing the electrical Ethernet communication

Connect the IED with automation system to check the connection is

successful, if connection fail, check the communication network.

If connection successes, in the menu: Testing/SimuReSig, send the

simulation point information to automation system, check the information and

compare with IED information, if the automation system does not receive any

information or the information received is not true, check the automation

system configuration.

1.1.2 Testing the optical Ethernet communication








1.2 Testing the RS485 port








1.3 Testing the RS232 port


53

Using the dedicated cable for serial port to connect the PC with IED, if

connection fail, check the corresponding configuration of IED is true or not. If

all configurations are true, and the connection is still unsuccessful, please

check the connection cable and communication port.


54

2 Testing the time synchronization

2.1 Network mode

Select time synchronization mode:

Settings/CommuPara/TimeMode/NetworkTimeMode

Change the IED time to any other time

Wait for a period of time

Check that the IED time is changed automatically in accordance with time

synchronization source

2.2 Pulse mode


Settings/CommuPara/TimeMode/PulseTimeMode





2.3 IRIG-B mode


Settings/CommuPara/TimeMode/IRIG-BTimeMode





Chapter 6 IED testing

55


About this chapter

This chapter describes the method of hardware testing, such as

power supply, binary input and output, analog quantities and all

functions testing method and testing procedure.


56

1 Introduction

IED test requirements:

Setting value list

The correct IED setting value must have been set before the testing can

start.

Application configuration diagram

Terminal diagram

The terminal diagram and module arrangement diagram, available in the

Technical application manual, is a general diagram of the IED. but note

that the same diagram is not always applicable to each specific delivery

(especially for the configuration of all the binary inputs and outputs).

Therefore, before testing, check that the available terminal diagram

corresponds to the IED.

Technical application maunal

The Technical application manual contains application and functionality

summaries, function block, logic diagram, input and output signals,

setting parameters and technical data sorted per function.

The three-phase test equipment

The test equipment should be able to provide a three-phase supply of

voltages and currents. The magnitude of voltage and current as well as

the phase angle between voltage and current must be variable. The

voltages and currents from the test equipment must be obtained from the

same source and they must have minimal harmonic content. If the test

equipment cannot indicate the phase angle, a separate phase-angle

measuring instrument is necessary.

Prepare the IED for test before testing a function. Consider the logic diagram

of the tested protection function when perform the test. All included functions

in the IED are tested according to the corresponding test instrunctions in this

chapter.

The response from a test can be viewed in different ways:

Binary output signals


57

Display value in HMI

All setting groups that are used should be tested.

The IED is designed for a maximum continuous current of three

times the rated current

Please observe the measuring accuracy of the IED, the test

equipment and angular accuracy for both of them


58

2 Points for attention during testing

Be familiar with the engineering drawings, engineering and operation

manual and technical application manual

Before testing, check that the short-circuited wire used to avoid CT

secondary circuit opening is connected correctly and firmly. The

short-circuited phenomenon of VT secondary circuit does not exist

It is allowed to plug-in and pull out each module after the power supply

disconnection. Aviod AC current circuit opened when plug in and pull out

the modules

Keep cleaning and pay attention to dust prevention for each module

Adoption the measure of the human body electrostatic grounding

prevention to make sure that the IED is not damaged by hunam

electrostatic

In principle, the electric iron can't be used in field, if the electric iron need

to be used for welding during testing, the welding can be performed after

the power disconnection or using the electric iron with earthed wire

During testing, do not insert the module into the wrong position. When

plug in and pull out the module apply appropriate force instead of

overexerting to avoid pins bending or damage the fastening components

of module

Short-circuited or disconnected terminals temporarily for checking, it

should be recorded one by one and return to original state after the

testing is completed

Using the electronic devices (e.g. oscillograph, etc.) with AC power

supply to measure the circuit parameters, the case of the device should

be earthed in the same grounding with protection IED cabinet

During testing, consider the safety measure between the IED and other

running equipment and the safety measure of related circuit between

external running equipment and the IED

During testing, if the current magnitude that is input into IED is large than

three times of rated current, it should be noticed that the time should not

be too long


59

When energizing the IED in the first time, using multimeter to check the

power supply, the circuit of voltages and currents are connected correcly

to avoid short circuit or open circuit

Tighten all the screws of all terminals again for the new project in order to

prevent improper connection, and plug in and pull out all the modules

again to aovid the modules loosing result from operation or installation


60

3 Preparing for test

3.1 Introduction

Please read the corresponding manuals that is provided by manufacturer

in detail before testing, try best to understand the basic operation,

protection principle and the relevant capabilities. If have any questions in

this procedure, please inquire the field service engineer or the technical

support engineer of SiFang.

All checking should be done before energizing, inspection well and no

damage on the surface, all modules are inserted firmly, the insulation of

the power circuit are satisfied the specified requirement.

Disconnect the external circuit before testing to avoid safety accident or

injuries to the human

If the modules are needed to be plugged in or pulled out, make sure that

the power is disconnected, and the measure of prevention electrostatic

should be done in order to avoid the damage to module or performance

degradation

The opened or short-circuited terminal temporarily should be recorded in

detail in order to return to original state reliably

3.2 Connecting test equipment to IED

Before testing, connect the test equipment according to the IED specific

connection diagram. Pay special attention to the correct connection of the

input and output current terminals. Check that the input and output logical

signals in the logic diagram for the function under test are connected to the

corresponding binary inputs and outputs of the IED. The testing connection

diagram is shown in Figure 14.

The user must verify that the connections are correct and the analog signals

are measured correctly after connection completed.

Procedure:

1. Inject a symmetrical three-phase current and voltage at rated value

2. Inject a phase-to-phase voltage and phase-to-phase current at rated


61

value

3. Check that the magnitude and phasor of analog quantities displayed in

LHMI are in accordance with the input values

4. Inject an asymmetrical three-phase current and voltage at rated value in

two phases

5. Check that the magnitude and phasor of analog quantities displayed in

LHMI are in accordance with the input values

6. If the compared value is consistent, perform the testing, if the compared

value is different, check the analog circuit connections

IA

IB

IC

IN

UA

UB

UC

UN

IA

IB

IC

IN

UA

UB

UC

UN

I’A

I’B

I’C

I’N

Trip A

Trip B

Trip C

Tester IED

I5 I5

Figure 14 Testing connection diagram


62

4 Testing the power supply

4.1 Checking the self-startup performance

Power on the IED, in order to check the self-startup performance of the IED,

energizing the IED with the voltage rised slowly from zero to 80% rated

voltage, at this time, observe the green ―Run‖ LED on the front panel that

should be lighted continuously. After the DC power disappears, the normal

closed contact should be disconnected, which can be tested using the

multimeter, the contact is show in Figure 10.

4.2 DC power on and power off testing

Changing the DC power to 80% rated voltage, power off and power on the

power supply some times, the ―Run‖ LED on the front panel should turn off

and turn on correspondingly. The normal closed contact should be in the ―on‖

or ―off‖ state. The contact is show in Figure 10.

4.3 Checking the expiry date of power supply

When period checking, check the expiry date for the power supply module, if

the power supply module has been used more than 5 years, please replace it.


63

5 Checking the analog channel

5.1 Checking the zero drift

MainMenu/Testing/ViewDrift

In this menu to check the zero drift of CPU1 and CPU2. The zero drift values

of all analog channels have been listed in detail, check that the zero drift is

met the requirement. Generally, the requirement of the current channels is

<0.02A (if the CT of analog input module is 1A) or <0.1A (if the CT of analog

input module is 5A), the voltage channels is <0.1V. If the zero drift value is not

satisfied the requirement, adjust the corresponding zero drift.

MainMenu/Testing/AdjDrift

It is allowed to check zero drift after energizing the IED for 5 minutes, when

adjusting the zero drift, disconnect electrical connection of the IED, test

equipment, standard source and external circuit, make sure that there are no

any inputs to analog terminals, select the menu and adjust zero drift.

5.2 Calibrating

MainMenu/Testing/AdjScale

Using the test equipment with the accuracy of analogue output should be no

less than 0.5%, connect the voltages and currents of test equipment to the

corresponding input terminals, select the channel need to be adjusted with

arrow keys and Set key, set the adjustment value In and UN, output the analog

quantities from test equipment to IED and comfirm it. If the operation fails, the

abnormity of analog channel and the channel number will be displayed in the

HMI, check the connection, standard value and version is correct or not.

Note: during testing, if the measuring tolerance of the analog quantities are

large than the required range, check that the testing connection, testing

method and external measurement meter is correct, the testing source has

not wave distortion, before all of the exteral equipments are checked, it

should not adjust or change the components of the IED immediately.

5.3 Checking the accuracy and the linearity of analog quantitis


64

MainMenu/Testing/ViewScale

After scale and zero drift adjustment completed, check the measurement

linearity tolerance of the IED with test equipment(the accuracy of analogue

output should be no less than 0.5%), and record the testing result, the

requirement:

If the secondary rated current of CT is 5A, inject current 25A and 10A (the

time for these two injected current can't be more than 10s), 2A, 1A, 0.4A

respectively; if the secondary rated current of CT is 1A, inject current 5A,

2A, 0.5A, 0.2A, 0.08A respectively

Inject voltage 60V, 30V, 5V, 1V, 0.4V respectively

Observe the HMI display or check the menu described above, the voltage

channel tolerance is less than 0.1V between HMI display value and measured

value of external meter when the voltage is 0.4V and 1V, for the other voltage

value, the tolerance is less than 2.5%; the current channel tolerance is less

than 0.2In when the current is 0.08In and 0.2In, for the other current value, the

tolerance is less than 2.5%.

5.4 Checking the polarity of analog quantities

MainMenu/OpStatus/Measure

Connect all current circuits in series and connect all voltage circuits in parallel.

Inject rated current and three-phase symmetrical AC voltage with 50V, each

phase voltage lead 60° to the corresponding current. Check the scroll diaplay

in HMI or enter into the menu described above, the angle difference of volage

of phase A, B, C should be 120°, the angle difference of current of phase A, B,

C should be 120°, the current should lag 60° to the corresponding phase

voltage (tolerance ≤3°), if the diaplayed quantities are not satisfied the

requirement, check the IED or the connectin of analog input module.

Inject three-phase symmetrical AC voltage with 50V, inject phase A current

(rated current) that lag 60° to the phase A voltage, observe the magnitude

and angle of 3I0 which are same with IA, if the difference between 3I0 and IA is

larger than the tolerance range, check the IED and the connection of analog

input module.


65

6 Testing binary input

MainMenu/OpStatus/BI

Check the binary input status in this menu, all the binary input status should

be ―Off‖. Make sure that the circuit of binary input is in good condition, the

power of binary input have been connected (110V or 220V). Test the binary

input one by one according to the engineering drawing, the tested binary input

status displayed in HMI should be ―On‖.


66

7 Testing binary output

MainMenu/Test BO

Testing binary output in this menu to verify the correctness of signal circuit

and output circuit.

During testing the binary output, the corresponding relay contact operate and

the configured LED should be lighted, the irrelevant contacts should not

operate. Use the multimeter to measure the corresponding output contacts of

the tripping and signal.


67

8 Verifying the IED functions

Procedure:

1. Enable the protection function binary setting via software tool or LHMI

2. Input the corresponding settings value via software tool or LHMI

3. Input the rated currents and voltages to make the IED operating

normally for 20s

4. Active the binary input for the corresponding protection function

5. Simulate the fault occurance

6. Observe the testing result, the output contact

7. Stop the output from test equipment and restore to original state

8. Continue to test another function or complete the test

8.1 Overcurrent protection

Before starting the test, please make sure that the protection function setting

values and parameters are correct, refer to section Introduction, Points for

attention during testing and Preparing for test in this chapter.

8.1.1 Verifying the settings

8.1.1.1 Verifying the settings of stage 1 of overcurrent protection

1 Verifying the phase A setting

1.1 Verifying the current setting

Table 11 Current setting verifying

Test item Description

105% of the current setting verifying

Binary setting Settings/ProtContwd/Pls Input SetGrNo/OC/Func_OC1, set the

binary setting as 1

Setting value Settings/ProtSet/Pls Input SetGrNo/OC, the detail setting list refer


68


to the “Reference setting list for test” in this section

Binary input None

Fault simulation

Pre-fault stage:

Input the rated voltage for 1s

Fault stage:

Fault type: phase A phase to earth fault

Fault current: 105% of the setting value

Fault time: longer than the setting value

Test result

IED operation:

The corresponding output contacts of overcurrent protection

should be closed

Report:

―Relay Startup‖

―OC1 Trip‖



binary setting as 1



Binary input None

Fault simulation

Pre-fault stage:


Fault stage:




Test result

IED operation:


should not close

1.2 Verifying the time setting

Table 12 Time setting verifying



binary setting as 1



Binary input None

Fault simulation

Pre-fault stage:


Fault stage:


69





Test result

IED operation:


should be closed, and the operate time meets the requirement in

technical data

Report:

―Relay Startup‖

―OC1 Trip‖

1.3 Verifying the direction angle setting

1.3.1 Direction point to object

Table 13 Direction angle setting verifying


Angle_OC-85°+3° ≤ Direction angle ≤ Angle_OC+85°-3°

Binary setting

Settings/ProtContwd/Pls Input SetGrNo/OC/Func_OC1, set the

binary setting as 1

Settings/ProtContwd/Pls Input SetGrNo/OC/OC1 Direction, set

the binary setting as 1

Settings/ProtContwd/Pls Input SetGrNo/OC/OC1 Dir To Sys, set




Binary input None

Fault simulation

Pre-fault stage:


Fault stage:



Direction angle: Angle_OC-85°+3° ≤ Direction angle ≤

Angle_OC+85°-3°


Test result

IED operation:


should be closed

Report:

―Relay Startup‖

―OC1 Trip‖

Direction angle > Angle_OC+85°+3° or Direction angle < Angle_OC-85°-3


70


Binary setting


binary setting as 1

Settings/ProtContwd/Pls Input SetGrNo/OC/OC1 Direction, set


Settings/ProtContwd/Pls Input SetGrNo/OC/OC1 Dir To Sys, set




Binary input None

Fault simulation

Pre-fault stage:


Fault stage:



Direction angle: Direction angle > Angle_OC+85°+3° or Direction

Angle < Angle_OC-85°-3


Test result

IED operation:


should not close

1.3.2 Direction point to system

The test method and process for direction point to system are same as

direction point to object, only need to modify the binary setting and apply the

angle area of direction point to system.

1 Verifying the inrush restraint setting

Table 14 Inrush restraint setting verifying


95% of the inrush restraint setting verifying

Binary setting


binary setting as 1

Settings/ProtContwd/Pls Input SetGrNo/OC/OC1 Inrush Block,

set the binary setting as 1



Binary input None

Fault simulation

Pre-fault stage:


Fault stage:


71


Fault type: phase A phase to earth fault, with harmonic current

Ratio of I2/I1: 95% of setting value

Fault current: 200% of the setting value, less than the setting of

"Imax_2H_UnBlk"


Test result

IED operation:


should be closed

Report:

―Relay Startup‖

―OC1 Trip‖


Binary setting


binary setting as 1





Binary input None

Fault simulation

Pre-fault stage:


Fault stage:




"Imax_2H_UnBlk"


Test result

IED operation:


should not close

Report:

―Relay Startup‖

―Inrush Blk OC‖

Table 15 Cross-blocking setting verifying


Longer than the cross-blocking time

Binary setting


binary setting as 1





72



Binary input None

Fault simulation

Pre-fault stage:


Fault stage:

Fault type: phase A phase to earth fault, without harmonic

current

Harmonic phase: phase B or phase C



"Imax_2H_UnBlk"

Fault time: longer than (cross-blocking time + operate setting

value)

Test result

IED operation:


should be closed

Report:

―Relay Startup‖

―OC1 Trip‖

Shorter than the cross-blocking time

Binary setting


binary setting as 1





Binary input None

Fault simulation

Pre-fault stage:


Fault stage:

Fault type: phase A phase to earth fault, without harmonic

current

Harmonic phase: phase B or phase C



"Imax_2H_UnBlk"

Fault time: shorter than cross-blocking time

Test result

IED operation:


should not close

Report:

―Relay Startup‖

―Inrush Blk OC‖


73

Table 16 The maximum inrush current unblocking setting verifying


105% of the maximum inrush current unblocking setting verifying

Binary setting


binary setting as 1





Binary input None

Fault simulation

Pre-fault stage:


Fault stage:



Fault current: 105% of the maximum inrush current unblocking

setting


Test result

IED operation:


should be closed

Report:

―Relay Startup‖

―OC1 Trip‖


Binary setting


binary setting as 1





Binary input None

Fault simulation

Pre-fault stage:


Fault stage:




setting


Test result

IED operation:


should not close


74


Report:

―Relay Startup‖

―Inrush Blk OC‖

2 Verifying the settings of other phase

The test method and test items of verifying the other phase are same as

phase A, only need to change the corresponding test conditions and settings

into the conrresponding other phase required.

8.1.1.2 Verifying the settings of stage 2 of overcurrent protection

The test method and test items of verifying the stage 2 of overcurrent

portection are same as stage 1, only need to change the corresponding test

conditions and settings into the conrresponding stage 2 required.

8.1.1.3 Verifying the settings of inverse time stage

1 Verifying the time setting of phase A



Binary setting Settings/ProtContwd/Pls Input SetGrNo/OC/Func_OC Inv, set




Binary input None

Fault simulation

Pre-fault stage:


Fault stage:



Fault time: longer than the time calculated by the equation

Test result

IED operation:



technical data

Report:

―Relay Startup‖

―OC Inv Trip‖

Table 18 Inverse time stage characteristic


75

Inverse time stage characteristic

IEC

Normal inverse

Very inverse

Extremely inverse

Long inverse

ANSI

Normal Inverse

Short inverse

Long inverse

Moderately inverse

Very inverse

Extremely inverse

Definite inverse

User-defined characteristic

A_OC

(i

I_OC)P_OC − 1

+ B_OC k_OC

Time factor of inverse time, A

Delay time of inverse time, B

Index of inverse time, P

Time multiplier: k


The test method and test items of verifying the other phase of inverse time

stage are same as phase A, only need to change the corresponding test

conditions and settings into the conrresponding other phase required.

8.1.2 Completing the test

Continue to test another function or end the test. Restore connections and

settings to their original values, if they were changed for testing purposes.

8.1.3 Reference setting list for test

Table 19 Overcurrent protection function setting list

NO. Default Abbr. Explanation Unit Min. Max.

1. 2In I_OC1 Current setting for stage 1 A 0.05 100

2. 0.1 T_OC1 Time setting for stage 1 s 0 60

3. 1.2In I_OC2 Current setting for stage 2 A 0.05 100


76


4. 0.3 T_OC2 Time setting for stage 2 s 0 60

5. 1 Curve_OC Inv No. of inverse time curve 1 12

6. 1.2In I_OC Inv Current setting for inverse

time stage A 0.05 100

7. 1 K_OC Inv Time multiplier for inverse

time stage 0.05 999

8. 0.14 A_OC Inv Time factor for inverse time

stage s 0 200

9. 0 B_OC Inv Delay time for inverse time

stage s 0 60

10. 0.02 P_OC Inv Index for inverse time stage 0 10

11. 60 Angle_OC Direction characteristic angle Degree 0 90

12. 5In Imax_2H_UnBlk Maximum inrush current

unblocking setting A 0.25 100

13. 0.2 Ratio_I2/I1

Ratio for second harmonic

current to fundamental

component

0.07 0.5

14. 1 T2h_Cross_Blk Time setting for

cross-blocking s 0 60

Table 20 Overcurrent protection binary setting list


1. 1 Func_OC1 Overcurrent stage 1 enabled

or disabled 0 1

2. 1 OC1 Direction Direction of overcurrent stage

1 enabled or disabled 0 1

3. 0 OC1 Dir To Sys Direction of stage 1 point to

system or protected object 0 1

4. 1 OC1 Inrush Block Inrush restraint for overcurrent

stage 1 enabled or disabled 0 1

5. 1 Func_OC2 Overcurrent stage 2 enabled

or disabled 0 1

6. 1 OC2 Direction Direction of overcurrent stage

2 enabled or disabled 0 1

7. 0 OC2 Dir To Sys Direction of stage 2 point to


8. 1 OC2 Inrush Block Inrush restraint for overcurrent

stage 2 enabled or disabled 0 1

9. 1 Func_OC Inv Inverse time stage enabled or

disabled 0 1


77


10. 0 OC Inv Direction Direction of inverse time stage

enabled or disabled 0 1

11. 0 OC Inv Dir To Sys

Direction of inverse stage

point to system or protected

object

0 1

12. 0 OC Inv Inrush Block

Inrush restraint for inverse

time stage enabled or

disabled

0 1

13. 1 Blk OC at VT Fail Overcurrent direction disabled

when PT failure happen 0 1

14. 1 OC Init CBF

Circuit breaker failure

protection initiated by

overcurrent

0 1

8.2 Earth fault protection





8.2.1.1 Verifying the settings of stage 1 of earth fault protection


1.1 Verifying the zero-sequence current setting

Table 21 Zero sequence current setting verifying


105% of the zero sequence current setting verifying

Binary setting Settings/ProtContwd/Pls Input SetGrNo/EF/Func_EF1, set the

binary setting as 1

Setting value Settings/ProtSet/Pls Input SetGrNo/EF, the detail setting list refer


Binary input None

Fault simulation

Pre-fault stage:


Fault stage:



78




Test result

IED operation:

The corresponding output contacts of earth fault protection

should be closed

Report:

―Relay Startup‖

―EF1 Trip‖



binary setting as 1



Binary input None

Fault simulation

Pre-fault stage:


Fault stage:




Test result

IED operation:


should not close





binary setting as 1



Binary input None

Fault simulation

Pre-fault stage:


Fault stage:




Test result

IED operation:




79


technical data

Report:

―Relay Startup‖

―EF1 Trip‖



Table 23 Zero sequence direction angle setting verifying


Angle_EF-80°+3° ≤ Direction angle ≤ Angle_EF+80°-3°

Binary setting

Settings/ProtContwd/Pls Input SetGrNo/EF/Func_EF1, set the

binary setting as 1

Settings/ProtContwd/Pls Input SetGrNo/EF/EF1 Direction, set


Settings/ProtContwd/Pls Input SetGrNo/EF/EF1 Dir To Sys, set


Settings/ProtContwd/Pls Input SetGrNo/EF/3I0 Calculated, set


Settings/ProtContwd/Pls Input SetGrNo/EF/3U0 Calculated, set




Binary input None

Fault simulation

Pre-fault stage:


Fault stage:



Zero sequence voltage: 70% rated voltage

Direction angle: Angle_EF-80°+3° ≤ Direction angle ≤

Angle_EF+80°-3°


Test result

IED operation:


should be closed

Report:

―Relay Startup‖

―EF1 Trip‖

Direction angle > Angle_EF+80°+3° or Direction angle < Angle_EF-80°-3



80


binary setting as 1





Settings/ProtContwd/Pls Input SetGrNo/EF/3I0 Calculated, set


Settings/ProtContwd/Pls Input SetGrNo/EF/3U0 Calculated, set


Binary input None

Fault simulation

Pre-fault stage:


Fault stage:



Zero sequence voltage: 70% rated voltage

Direction angle: Direction angle > Angle_EF+85°+3° or Direction

Angle < Angle_EF-85°-3


Test result

IED operation:


should not close

Table 24 Negative sequence direction angle setting verifying


Angle_EF-80°+3° ≤ Direction angle ≤ Angle_EF+80°-3°

Binary setting


binary setting as 1





Settings/ProtContwd/Pls Input SetGrNo/EF/EF U2/I2 Dir, set the

binary setting as 1



Binary input None

Fault simulation

Pre-fault stage:


Fault stage:


Negative sequence current: 200% of the setting value


81


Zero sequence voltage: 0 V

Negative sequence voltage: 70% rated voltage

Direction angle: Angle_EF-80°+3° ≤ Direction angle ≤

Angle_EF+80°-3°


Test result

IED operation:


should be closed

Report:

―Relay Startup‖

―EF1 Trip‖

Direction angle > Angle_EF+80°+3° or Direction angle < Angle_EF-80°-3

Binary setting


binary setting as 1





Settings/ProtContwd/Pls Input SetGrNo/EF/EF U2/I2 Dir, set the

binary setting as 1



Binary input None

Fault simulation

Pre-fault stage:


Fault stage:



Zero sequence voltage: 0 V

Negative sequence voltage: 70% rated voltage

Direction angle: Direction angle > Angle_EF+85°+3° or Direction

Angle < Angle_EF-85°-3


Test result

IED operation:


should not close



direction point to object, only need to modify the binary setting and apply the

angle area of direction point to system.


82

1.4 Verifying the inrush restraint setting




Binary setting


binary setting as 1

Settings/ProtContwd/Pls Input SetGrNo/EF/EF1 Inrush Block,


Settings/ProtContwd/Pls Input SetGrNo/EF/Inrush Chk I02/I01,




Binary input None

Fault simulation

Pre-fault stage:


Fault stage:




"Imax_2H_UnBlk"


Test result

IED operation:


should be closed

Report:

―Relay Startup‖

―EF1 Trip‖


Binary setting


binary setting as 1







Binary input None

Fault simulation

Pre-fault stage:


Fault stage:




83



"Imax_2H_UnBlk"


Test result

IED operation:


should not close

Report:

―Relay Startup‖

―Inrush Blk EF‖

Table 26 The maximum inrush current setting verifying



Binary setting


binary setting as 1







Binary input None

Fault simulation

Pre-fault stage:


Fault stage:




setting


Test result

IED operation:


should be closed

Report:

―Relay Startup‖

―EF1 Trip‖


Binary setting


binary setting as 1





84





Binary input None

Fault simulation

Pre-fault stage:


Fault stage:




setting


Test result

IED operation:


should not close

Report:

―Relay Startup‖

―Inrush Blk EF‖





8.2.1.2 Verifying the settings of stage 2 of earth fault protection

The test method and test items of verifying the stage 2 of earth fault







Binary setting Settings/ProtContwd/Pls Input SetGrNo/EF/Func_EF Inv, set the

binary setting as 1



Binary input None


85


Fault simulation

Pre-fault stage:


Fault stage:




Test result

IED operation:



technical data

Report:

―Relay Startup‖

―EF Inv Trip‖









Table 28 Earth fault protection function setting list


1. 0.5In 3I0_EF1 Zero-sequence current

setting for stage 1 A 0.05 100

2. 0.1 T_EF1 Time delay for stage 1 s 0 60

3. 0.2In 3I0_EF2 Zero-sequence current

setting for stage 2 A 0.05 100

4. 0.3 T_EF2 Delay time for stage 2 s 0 60

5. 1 Curve_EF Inv Inverse time curve of earth

fault protection 1 12

6. 0.2In 3I0_EF Inv

Zero-sequence current

setting for inverse time

stage

A 0.05 100


86


7. 1 K_EF Inv Multiplier setting for inverse

time stage 0.05 999

8. 0.14 A_EF Inv Coefficient setting for

inverse time stage s 0 200

9. 0 B_EF Inv Time delay setting for

inverse time stage s 0 60

10. 0.02 P_EF Inv Index for inverse time

stage 0 10

11. 70 Angle_EF Characteristic angle for

zero-sequence direction Degree 0 90

12. 70 Angle_Neg

Characteristic angle for

negative-sequence

direction

Degree 50 90

13. 5In Imax_2H_Un

Blk

Maximum inrush current

unblocking setting A 0.25 100

14. 0.2 Ratio_I2/I1

Ratio for second harmonic

current to fundamental

component

0.07 0.5

15. 5In 3I0max_2H_

UnBlk

Maximum zero sequence

inrush current unblocking

setting

A 0.25 100

16. 0.2 Ratio_I02/I01

Ratio for zero sequence

second harmonic current to

fundamental zero

sequence component

0.07 0.5

Table 29 Earth fault protection binary setting list


1. 1 Func_EF1 Earth fault stage 1 enabled

or disabled 0 1

2. 1 EF1 Direction

Direction of earth fault

stage 1 enabled or

disabled

0 1

3. 0 EF1 Dir To

Sys

Direction of stage 1 point to


4. 1 EF1 Inrush

Block

Inrush restraint for earth

fault stage 1 enabled or

disabled

0 1

5. 1 Func_EF2 Earth fault stage 2 enabled

or disabled 0 1


87


6. 1 EF2 Direction

Direction of earth fault

stage 2 enabled or

disabled

0 1

7. 0 EF2 Dir To

Sys

Direction of stage 2 point to


8. 1 EF2 Inrush

Block

Inrush restraint for earth

fault protection stage 2

enabled or disabled

0 1

9. 1 Func_EF Inv

Inverse time stage for earth

fault protection enabled or

disabled

0 1

10. 0 EF Inv

Direction

Direction of inverse time

stage enabled or disabled 0 1

11. 0 EF Inv Dir To

Sys


point to system or

protected object

12. 0 EF Inv Inrush

Block



disabled

0 1

13. 0 Inrush Chk

I02/I01

Inrush checking of zero

sequence current enabled

or disabled

0 1

14. 0 EF U2/I2 Dir

Negative sequence

directional element for EF

protection enabled or

disabled

0 1

15. 0 Blk EF at VT

Fail

Block or unblock EF

protection when VT fail

happens

0 1

16. 0 Blk EF at CT

Fail

Block or unblock EF

protection when CT fail

happens

0 1

17. 0 3I0

Calculated

3I0 is calculated or

measured from earth fault

CT

0 1

18. 1 3U0

Calculated

3U0 is calculated or

measured from earth fault

VT

0 1

19. 1 EF Init CBF


initiated by earth fault

protection

0 1


88

8.3 Neutral earth fault protection





8.3.1.1 Verifying the settings of neutral earth fault protection






Binary setting Settings/ProtContwd/Pls Input SetGrNo/NOC/Func_NOC1, set


Setting value Settings/ProtSet/Pls Input SetGrNo/NOC, the detail setting list

refer to the “Reference setting list for test” in this section

Binary input None

Fault simulation

Pre-fault stage:


Fault stage:




Test result

IED operation:

The corresponding output contacts of neutral earth fault

protection should be closed

Report:

―Relay Startup‖

―NOC1 Trip‖






Binary input None

Fault simulation Pre-fault stage:


89



Fault stage:




Test result

IED operation:


protection should not close








Binary input None

Fault simulation

Pre-fault stage:


Fault stage:




Test result

IED operation:


protection should be closed, and the operate time meets the

requirement in technical data

Report:

―Relay Startup‖

―NOC1 Trip‖



Table 32 Direction angle setting verifying


Angle_NOC-80°+3° ≤ Direction angle ≤ Angle_NOC+80°-3°




90


Settings/ProtContwd/Pls Input SetGrNo/NOC/NOC1 Direction,


Settings/ProtContwd/Pls Input SetGrNo/NOC/NOC1 Dir To Sys,


Settings/ProtContwd/Pls Input SetGrNo/NOC/3U0 Calculated,




Binary input None

Fault simulation

Pre-fault stage:


Fault stage:



Direction angle: Angle_NOC-80°+3° ≤ Direction angle ≤

Angle_NOC+80°-3°


Test result

IED operation:



Report:

―Relay Startup‖

―NOC1 Trip‖

Direction angle > Angle_NOC+80°+3° or Direction angle < Angle_NOC-80°-3

Binary setting

Settings/ProtContwd/Pls Input SetGrNo/NOC/Func_NOC1, set


Settings/ProtContwd/Pls Input SetGrNo/NOC/NOC1 Direction,


Settings/ProtContwd/Pls Input SetGrNo/NOC/NOC1 Dir To Obj,


Settings/ProtContwd/Pls Input SetGrNo/NOC/3U0 Calculated,




Binary input None

Fault simulation

Pre-fault stage:


Fault stage:



Direction angle: Direction angle > Angle_NOC+80°+3° or

Direction Angle < Angle_NOC-80°-3



91


Test result

IED operation:





direction point to object, only need to modify the binary setting and

apply the angle area of direction point to system.

1.4 Verifying the inrush restraint setting




Binary setting



Settings/ProtContwd/Pls Input SetGrNo/NOC/NOC1 Inrush

Block, set the binary setting as 1



Binary input None

Fault simulation

Pre-fault stage:


Fault stage:




"Imax_2H_UnBlk"


Test result

IED operation:



Report:

―Relay Startup‖

―NOC1 Trip‖


Binary setting







92



Binary input None

Fault simulation

Pre-fault stage:


Fault stage:




"Imax_2H_UnBlk"


Test result

IED operation:



Report:

―Relay Startup‖

―Inrush Blk EF‖

Table 34 The maximum inrush current setting verifying



Binary setting







Binary input None

Fault simulation

Pre-fault stage:


Fault stage:




setting


Test result

IED operation:



Report:

―Relay Startup‖

―NOC1 Trip‖



93


Binary setting







Binary input None

Fault simulation

Pre-fault stage:


Fault stage:




setting


Test result

IED operation:



Report:

―Relay Startup‖

―Inrush Blk NOC‖





8.3.1.2 Verifying the settings of stage 2 of neutral earth fault protection

The test method and test items of verifying the stage 2 of neutral earth fault







Binary setting Settings/ProtContwd/Pls Input SetGrNo/NOC/Func_NOC Inv,



94




Binary input None

Fault simulation

Pre-fault stage:


Fault stage:




Test result

IED operation:




Report:

―Relay Startup‖

―NOC Inv Trip‖









Table 36 Neutral earth fault protection function setting list


1. 0.5In 3I0_NOC1 Neutral current setting for

stage 1 A 0.05 100.0

2. 0.1 T_NOC1 Time setting for stage 1 s 0.00 60.00

3. 0.2In 3I0_NOC2 Neutral current setting for

stage 2 A 0.05 100.0

4. 0.3 T_OC2 Time setting for stage 2 s 0.00 60.00

5. 1 Curve_NOC Inv No. of inverse time curve 1 12


95


6. 0.2In 3I0_NOC Inv Current setting for inverse

time stage A 0.05 100.0

7. 1 K_NOC Inv Time multiplier for inverse

time stage 0.05 999.0

8. 0.14 A_NOC Inv Time factor for inverse

time stage s 0 200.0

9. 0 B_NOC Inv Delay time for inverse

time stage s 0.00 60.00

10. 0.02 P_NOC Inv Index for inverse time

stage 0 10.00

11. 70 Angle_NOC Direction characteristic

angle

Degr

ee 0.00 90.00

12. 5In 3I0max_2H_Un

Blk

Maximum inrush current

setting A 0.10 100.0

13. 0.2 Ratio_I02/I01

Ratio for second

harmonic current to

fundamental component

0.07 0.50

Table 37 Neutral earth fault protection binary setting list


1. 1 Func_NOC1 Neutral earth fault stage 1


2. 1 NOC1 Direction

Direction of neutral earth


disabled

0 1

3. 0 NOC1 Dir To

Sys

Direction of stage 1 point

to system or protected

object

0 1

4. 1 NOC1 Inrush

Block

Inrush restraint for neutral

earth fault stage 1

enabled or disabled

0 1

5. 1 Func_NOC2 Neutral earth fault stage 2


6. 1 NOC2 Direction

Direction of neutral earth


disabled

0 1

7. 0 NOC2 Dir To

Sys

Direction of stage 2 point

to system or protected

object

0 1

8. 1 NOC2 Inrush Inrush restraint for neutral 0 1


96


Block earth fault stage 2

enabled or disabled

9. 1 Func_NOC Inv

Inverse time stage for

neutral earth fault enabled

or disabled

0 1

10. 0 NOC Inv

Direction

Direction of inverse time

stage enabled or disabled 0 1

11. 0 NOC Inv Dir To

Sys


point to system or

protected object

0 1

12. 0 NOC Inv Inrush

Block



disabled

0 1

13. 1 Blk NOC at VT

Fail

VT failure block neutral


enabled or disabled

0 1

14. 1 3U0 Calculated 3U0 calculated or

measured from VT 0 1

15. 1 NOC Init CBF


initiated by neutral earth

fault protection

0 1

8.4 Sensitive earth fault protection





8.4.1.1 Verifying the settings of sensitive earth fault protection


1.1 Verifying the sensitive zero-sequence current setting

Table 38 Sensitive zero sequence current setting verifying


105% of the sensitive zero sequence current setting verifying

Binary setting Settings/ProtContwd/Pls Input SetGrNo/SEF/Func_SEF1, set


97



Settings/ProtContwd/Pls Input SetGrNo/SEF/SEF1 Trip, set the

binary setting as 1

Settings/ProtContwd/Pls Input SetGrNo/Common/I5 for SEF, set


Setting value Settings/ProtSet/Pls Input SetGrNo/SEF, the detail setting list


Binary input None

Fault simulation

Pre-fault stage:


Fault stage:




Test result

IED operation:

The corresponding output contacts of sensitive earth fault


Report:

―Relay Startup‖

―SEF1 Trip‖

95% of the sensitive zero sequence current setting verifying

Binary setting

Settings/ProtContwd/Pls Input SetGrNo/SEF/Func_SEF1, set



binary setting as 1





Binary input None

Fault simulation

Pre-fault stage:


Fault stage:




Test result

IED operation:






98


Binary setting




binary setting as 1





Binary input None

Fault simulation

Pre-fault stage:


Fault stage:




Test result

IED operation:



Report:

―Relay Startup‖

―SEF1 Trip‖


1.3.1 Direction based on U0/I0-Φ

Table 40 Direction angle setting based on U0/I0-Φ verifying


Angle_NOC-80°+3° ≤ Direction angle ≤ Angle_SEF+80°-3°

Binary setting




binary setting as 1



Settings/ProtContwd/Pls Input SetGrNo/SEF/SEF1 Direction,


Settings/ProtContwd/Pls Input SetGrNo/SEF/3U0 Chk U0/I0, set


Settings/ProtContwd/Pls Input SetGrNo/SEF/3U0 Calculated,




99



Binary input None

Fault simulation

Pre-fault stage:


Fault stage:



Direction angle: Angle_SEF-80°+3° ≤ Direction angle ≤

Angle_SEF+80°-3°

Zero sequence voltage: larger than the "U_SEF" setting


Test result

IED operation:



Report:

―Relay Startup‖

―SEF1 Trip‖

Direction angle > Angle_SEF+80°+3° or Direction angle < Angle_SEF-80°-3

Binary setting




binary setting as 1











Binary input None

Fault simulation

Pre-fault stage:


Fault stage:



Direction angle: Direction angle > Angle_SEF+80°+3° or

Direction angle < Angle_SEF-80°-3



Test result IED operation:


100




1.3.2 Direction based on CosΦ

Table 41 Direction angle setting based on CosΦ verifying


Direction angle > 180° - argCos(Iset/Ifault) + 3°

Binary setting




binary setting as 1











Binary input None

Fault simulation

Pre-fault stage:


Fault stage:



Direction angle: angle > 180° - argCos(Iset/Ifault) + 3°



Test result

IED operation:



Report:

―Relay Startup‖

―SEF1 Trip‖

Direction angle < 180° - argCos(Iset/Ifault) - 3°

Binary setting




binary setting as 1


101












Binary input None

Fault simulation

Pre-fault stage:


Fault stage:



Direction angle: angle < 180° - argCos(Iset/Ifault) - 3°



Test result

IED operation:







8.4.1.2 Verifying the settings of stage 2 of sensitive earth fault protection

The test method and test items of verifying the stage 2 of sensitive earth fault







Binary setting Settings/ProtContwd/Pls Input SetGrNo/SEF/Func_SEF Inv, set


102



Settings/ProtContwd/Pls Input SetGrNo/SEF/SEF Inv Trip, set






Binary input None

Fault simulation

Pre-fault stage:


Fault stage:




Test result

IED operation:




Report:

―Relay Startup‖

―SEF Inv Trip‖




conditions and settings into the other phase required.





Table 43 Sensitive earth fault protection function setting list


1. 0.2 I_SEF1 Sensitive current setting for

stage 1 A 0.005 1.00

2. 0.1 T_SEF1 Time setting for stage 1 s 0.00 60.00


103


3. 0.1 I_SEF2 Sensitive current setting for

stage 2 A 0.005 1.00

4. 0.5 T_SEF2 Time setting for stage 2 s 0.00 60.00

5. 1 Curve_SEF Inv Inverse time curve 1 12

6. 0.5 I_SEF Inv Current setting for inverse


7. 1 K_SEF Inv Time multiplier for inverse

time stage 0.05 999.0

8. 0.14 A_SEF Inv Time factor for inverse time

stage s 0.005 200.0

9. 0 B_SEF Inv Delay time for inverse time

stage s 0.00 60.00

10. 0.02 P_SEF Inv Index for inverse time stage 0.005 10.00

11. 70 Angle_SEF

Direction characteristic

angle for U0/I0-Φ

measurement

0.00 90.00

12. 0.2 IsCOS_SEF Cos Φ measurement for

direction determination A 0.005 1.00

13. 5 U_SEF Voltage setting for SEF V 2.00 100.0

Table 44 Sensitive earth fault protection binary setting list


1. 1 Func_SEF1 Sensitive earth fault stage 1


2. 1 SEF1 Trip Sensitive earth fault stage 1

trip or alarm 0 1

3. 1 SEF1 Direction

Direction of sensitive earth


disabled

0 1

4. 1 Func_SEF2 Sensitive earth fault stage 2


5. 1 SEF2 Trip Sensitive earth fault stage 2

trip or alarm 0 1

6. 1 SEF2 Direction



disabled

0 1

7. 1 Func_SEF Inv

Sensitive earth fault inverse


disabled

0 1

8. 1 SEF Inv Trip Sensitive earth fault inverse 0 1


104


time stage trip or alarm

9. 0 SEF Inv

Direction


fault inverse time stage

enabled or disabled

0 1

10. 1 SEF Chk U0/I0

U0/I0 measurement or Cos

Φ measurement for

direction determination

0 1

11. 1 Blk SEF at VT

Fail

VT failure block sensitive


enabled or disabled

0 1

12. 1 3U0 Calculated 3U0 calculated or

measured from VT 0 1

13. 1 SEF Init CBF


protection initiated by

sensitive earth fault

protection

0 1

8.5 Negative sequence overcurrent protection





8.5.1.1 Verifying the settings of stage 1 of negative sequence overcurrent

protection






Binary setting

Settings/ProtContwd/Pls Input SetGrNo/NSOC/Func_NSOC1,


Settings/ProtContwd/Pls Input SetGrNo/NSOC/ NSOC1 Trip, set


Setting value Settings/ProtSet/Pls Input SetGrNo/NSOC, the detail setting list


105



Binary input None

Fault simulation

Pre-fault stage:


Fault stage:




Test result

IED operation:

The corresponding output contacts of negaitve sequence

overcurrent protection should be closed

Report:

―Relay Startup‖

―NSOC1 Trip‖


Binary setting







Binary input None

Fault simulation

Pre-fault stage:


Fault stage:




Test result

IED operation:


overcurrent protection should not close




Binary setting








106


Binary input None

Fault simulation

Pre-fault stage:


Fault stage:




Test result

IED operation:


overcurrent protection should be closed, and the operate time

meets the requirement in technical data

Report:

―Relay Startup‖

―NSOC1 Trip‖





8.5.1.2 Verifying the settings of stage 2 of negative sequence overcurrent

protection

The test method and test items of verifying the stage 2 of negative sequence

overcurrent portection are same as stage 1, only need to change the

corresponding test conditions and settings into the conrresponding stage 2

required.





Binary setting



Settings/ProtContwd/Pls Input SetGrNo/NSOC/NSOC1 Trip, set




Binary input None


107


Fault simulation

Pre-fault stage:


Fault stage:




Test result

IED operation:


overcurrent protection should be closed, and the operate time

meets the requirement in technical data

Report:

―Relay Startup‖

―NSOC Inv Trip‖









Table 48 Negative sequence overcurrent protection function setting list


1. 0.5In 3I2_NSOC1 Negative sequence current

setting for stage 1 A 0.05 100.0

2. 0.1 T_NSOC1 Time setting for stage 1 s 0.00 60.00

3. 0.2In 3I2_NSOC2 Negative sequence setting

for stage 2 A 0.05 100.0

4. 0.3 T_NSOC2 Time setting for stage 2 s 0.00 60.00

5. 1 Curve_NOC Inv Inverse time curve 1 12

6. 0.2In 3I2_NSOC Inv Current setting for inverse


7. 1 K_NSOC Inv Time multiplier for inverse 0.05 999.0


108


time stage

8. 0.14 A_NSOC Inv Time factor for inverse time

stage s 0.005 200.0

9. 0 B_NSOC Inv Delay time for inverse time

stage s 0.00 60.00

10. 0.02 P_NSOC Inv Index for inverse time stage 0.005 10.00

Table 49 Negative sequence overcurrent protection binary setting list


1. 1 Func_NSOC1

Negative sequence

overcurrent protection stage 1

enabled or disabled

0 1

2. 0 NSOC1 Trip

Negative sequence

overcurrent stage 1 trip or

alarm

0 1

3. 1 Func_NSOC2

Negative sequence

overcurrent protection stage 2

enabled or disabled

0 1

4. 0 Func_NSOC Inv

Inverse time stage of negative

sequence overcurrent

protection enabled or disabled

0 1

5. 0 NSOC Inv Trip

Inverse time stage negative

sequence overcurrent trip or

alarm

0 1

6. 0 NSOC Init CBF

Circuit breaker failure initiated

by negative sequence


0 1

8.6 Thermal overload protection





8.6.1.1 Verifying the settings of cold curve of thermal overload protection



109





Binary setting

Settings/ProtContwd/Pls Input SetGrNo/Thermal OL

/Func_Thermal OL, set the binary setting as 1

Settings/ProtContwd/Pls Input SetGrNo/Thermal OL /Cold

Curve, set the binary setting as 1

Setting value

Settings/ProtSet/Pls Input SetGrNo/Thermal OL, the detail

setting list refer to the “Reference setting list for test” in this

section

Binary input None

Fault simulation

Pre-fault stage:


Fault stage:




Test result

IED operation:

The corresponding output contacts of thermal overload


Report:

―Relay Startup‖

―Therm OL Startup‖

―Thermal OL Trip‖


Binary setting





Setting value



section

Binary input None

Fault simulation

Pre-fault stage:


Fault stage:







110






Binary setting





Setting value



section

Binary input None

Fault simulation

Pre-fault stage:


Fault stage:




Test result

IED operation:




Report:

―Relay Startup‖







8.6.1.2 Verifying the settings of hot curve of thermal overload protection





111



Binary setting





Setting value



section

Binary input None

Fault simulation

Pre-fault stage:

Input the rated voltage and load current for 1s

Fault stage:




Test result

IED operation:



Report:

―Relay Startup‖




Binary setting





Setting value



section

Binary input None

Fault simulation

Pre-fault stage:

Input the rated voltage and load current for 1s

Fault stage:




Test result

IED operation:





112








Table 53 Thermal overload protection function setting list


1. 1.1In I_Thermal OL Trip Thermal overload current

setting for tripping A 0.1 25

2. 1.1In I_Thermal OL Alarm Thermal overload current

setting for alarming A 0.1 25

3. 60 T_Const Thermal Time constant for thermal

overload protection s 1 9999

4. 60 T_Const Cool Down Time constant for cool down s 1 9999

Table 54 Theraml overload protection binary setting list


1. 1 Func_Thermal OL Thermal overload protection


2. 0 Cold Curve Cold Curve or Hot Curve 0 1

3. 1 Thermal OL Init CBF Thermal overload protection

initiate CBF protection 0 1

8.7 Overload protection






113






Binary setting Settings/ProtContwd/Pls Input SetGrNo/Common/Func_OL, set


Setting value Settings/ProtSet/Pls Input SetGrNo/Common, the detail setting

list refer to the “Reference setting list for test” in this section

Binary input None

Fault simulation

Pre-fault stage:


Fault stage:




Test result

IED operation:

The corresponding output contacts of overload protection should

be closed

Report:

―Overload Alarm‖






Binary input None

Fault simulation

Pre-fault stage:


Fault stage:




Test result

IED operation:


not close




114






Binary input None

Fault simulation

Pre-fault stage:


Fault stage:




Test result

IED operation:


be closed, and the operate time meets the requirement in

technical data

Report:

―Overload Alarm‖









Table 57 Overload protection function setting list


1. 2In I_OL Alarm Current setting for overload

protection A 0.05 100

2. 20 T_OL Alarm Time setting for overload

protection s 0.1 6000

Table 58 Overload protection binary setting list


115


1. 1 Func_OL Overload function enabled or

disabled 0 1

8.8 Overvoltage protection





8.8.1.1 Verifying the settings of stage 1 of overvoltage protection

1 Phase-to-earth voltage discrimination

1.1 Verifying the phase A settings

1.1.1 Verifying the voltage setting

Table 59 Voltage setting verifying


105% of the voltage setting verifying

Binary setting

Settings/ProtContwd/Pls Input SetGrNo/OV_UV/Func_OV1, set


Settings/ProtContwd/Pls Input SetGrNo/OV_UV/OV Chk PE, set


Settings/ProtContwd/Pls Input SetGrNo/OV_UV/OV1 Trip, set


Setting value Settings/ProtSet/Pls Input SetGrNo/OV_UV, the detail setting list


Binary input None

Fault simulation

Pre-fault stage:


Fault stage:

Overvoltage phase: phase A

Overvoltage value: 105% of the setting value

Overvoltage time: longer than the setting value

Test result

IED operation:

The corresponding output contacts of overvoltage protection

should be closed


116


Report:

―Relay Startup‖

―OV1 Trip‖


Binary setting









Binary input None

Fault simulation

Pre-fault stage:


Fault stage:




Test result

IED operation:


should not close

1.1.2 Veritying the time setting



Binary setting









Binary input None

Fault simulation

Pre-fault stage:


Fault stage:





117


Test result

IED operation:



technical data

Report:

―Relay Startup‖

―OV1 Trip‖

1.1.3 Veritying the dropout ratio setting

Table 61 Dropout ratio setting verifying


99% of the dropout ratio setting verifying

Binary setting









Binary input None

Fault simulation

Pre-fault stage:


Fault stage:




Dropout stage:


Test result

IED operation:


should be closed, and then the protection function dropout

Report:

―Relay Startup‖

―OV1 Trip‖


Binary setting







118





Binary input None

Fault simulation

Pre-fault stage:


Fault stage:




Dropout stage:


Test result

IED operation:


should be closed, and then the protection function does not

dropout

1.2 Verifying the settings of other phase




2 Phase-to-phase voltage discrimination

2.1 Verifying the phase AB settings

2.1.1 Verifying the voltage setting




Binary setting









Binary input None


119


Fault simulation

Pre-fault stage:


Fault stage:

Overvoltage phase: phase AB



Test result

IED operation:


should be closed

Report:

―Relay Startup‖

―OV1 Trip‖


Binary setting









Binary input None

Fault simulation

Pre-fault stage:


Fault stage:




Test result

IED operation:


should not close

2.1.2 Veritying the time setting



Binary setting








120




Binary input None

Fault simulation

Pre-fault stage:


Fault stage:




Test result

IED operation:



technical data

Report:

―Relay Startup‖

―OV1 Trip‖

2.1.3 Veritying the dropout ratio setting




Binary setting









Binary input None

Fault simulation

Pre-fault stage:


Fault stage:




Dropout stage:


Test result

IED operation:




121


Report:

―Relay Startup‖

―OV1 Trip‖


Binary setting









Binary input None

Fault simulation

Pre-fault stage:


Fault stage:




Dropout stage:


Test result

IED operation:



dropout






The test method and test items of verifying the stage 2 of overvoltage

protection are same as stage 1, only need to change the corresponding test






122


Table 65 Overvoltage protection function setting list


1. 65 U_OV1 Voltage setting for stage 1 of

overvoltage protection V 40 200

2. 0.3 T_OV1 Time setting for stage 1 of

overvoltage protection s 0 60

3. 63 U_OV2 Voltage setting for stage 2 of

overvoltage protection V 40 200

4. 0.6 T_OV2 Time setting for stage 2 of

overvoltage protection s 0 60

5. 0.95 Dropout_OV Dropout ratio for overvoltage

protection 0.9 0.99

Table 66 Overvoltage protection binary setting list


1. 1 Func_OV1 Overvoltage stage 1 enabled or

disabled 0 1

2. 0 OV1 Trip Overvoltage stage 1 trip or

alarm 0 1

3. 1 Func_OV2 Overvoltage stage 2 enabled or

disabled 0 1

4. 0 OV2 Trip Overvoltage stage 2 trip or

alarm 0 1

5. 1 OV PE

Phase to phase voltage or

phase to earth measured for

overvoltage protection

0 1

6. 0 OV Init CBF Circuit breaker failure is initated

by overvoltage protection 0 1

8.9 Undervoltage protection






123

8.9.1.1 Verifying the settings of stage 1 of undervoltage protection

1 Undervoltage for one phase discrimination

1.1 Phase-to-earth voltage discrimination

1.1.1 Verifying the phase A settings

1.1.1.1 Verifying the voltage setting




Binary setting

Settings/ProtContwd/Pls Input SetGrNo/OV_UV/Func_UV1, set


Settings/ProtContwd/Pls Input SetGrNo/OV_UV/UV Chk PE, set


Settings/ProtContwd/Pls Input SetGrNo/OV_UV/UV1 Trip, set


Settings/ProtContwd/Pls Input SetGrNo/OV_UV/UV Chk All

Phase, set the binary setting as 0



Binary input None

Fault simulation

Pre-fault stage:


Fault stage:

Undervoltage phase: phase A

Undervoltage value: 95% of the setting value

Undervoltage time: longer than the setting value

Test result

IED operation:

The corresponding output contacts of undervoltage protection

should be closed

Report:

―Relay Startup‖

―UV1 Trip‖


Binary setting








124






Binary input None

Fault simulation

Pre-fault stage:


Fault stage:




Test result

IED operation:


should not close

1.1.2 Verifying the time setting



Binary setting











Binary input None

Fault simulation

Pre-fault stage:


Fault stage:




Test result

IED operation:



technical data

Report:

―Relay Startup‖


125


―UV1 Trip‖

1.1.3 Verifying the current setting




Binary setting







Settings/ProtContwd/Pls Input SetGrNo/OV_UV/UV Chk

Current, set the binary setting as 1





Binary input None

Fault simulation

Pre-fault stage:


Fault stage:



Current value: 105% of the setting value


Test result

IED operation:


should be closed

Report:

―Relay Startup‖

―UV1 Trip‖


Binary setting







Settings/ProtContwd/Pls Input SetGrNo/OV_UV/UV Chk

Current, set the binary setting as 1


126






Binary input None

Fault simulation

Pre-fault stage:


Fault stage:



Current value: 95% of the setting value


Test result

IED operation:

The corresponding output contacts of o undervoltage protection

should not close

1.1.4 Verifying the auxiliary contact of circuit breaker

Table 70 Auxiliary contact supervision verifying


Binary input of ―PhA CB Open‖ is ―Off‖

Binary setting







Settings/ProtContwd/Pls Input SetGrNo/OV_UV/UV Chk CB

Status, set the binary setting as 1





Binary input Binary input of ―PhA CB Open‖ is ―Off‖

Fault simulation

Pre-fault stage:


Fault stage:

Binary input: ―PhA CB Open‖ is ―Off‖






127



should be closed

Report:

―Relay Startup‖

―UV1 Trip‖

Binary input of ―PhA CB Open‖ is ―On‖

Binary setting







Settings/ProtContwd/Pls Input SetGrNo/OV_UV/UV Chk CB

Status, set the binary setting as 1





Binary input Binary input of ―PhA CB Open‖ is ―Off‖

Fault simulation

Pre-fault stage:


Fault stage:

Binary input: ―PhA CB Open‖ is ―On‖




Test result

IED operation:


should not close

1.1.5 Verifying dropout ration setting



101% of the dropout ratio setting value

Binary setting









128



Binary input None

Fault simulation

Pre-fault stage:


Fault stage:




Dropout stage:


Test result

IED operation:



Report:

―Relay Startup‖

―OV1 Trip‖

99% of the dropout ratio setting value

Binary setting









Binary input None

Fault simulation

Pre-fault stage:


Fault stage:




Dropout stage:


Test result

IED operation:



dropout

1.1.6 Verifying the settings of other phase




129


1.2 Phase-to-phase voltage discrimination

The test method and test items of verifying the phase-to-phase voltage

discrimination are same as phase-to-earth voltage discrimination, only need

to change the corresponding test conditions and settings into the

conrresponding phase-to-phase voltage discrimination required.

2 Undervoltage for three phases discrimination

Table 72 Three-phase undervoltage verifying



Binary setting









Binary input None

Fault simulation

Pre-fault stage:


Fault stage:

Undervoltage phase: phase A, B, C



Test result

IED operation:


should be closed

Report:

―Relay Startup‖

―UV1 Trip‖


Binary setting









130



Binary input None

Fault simulation

Pre-fault stage:


Fault stage:

Undervoltage phase: phase A, B, C



Test result

IED operation:


should not close

8.9.1.2 Verifying the settings of stage 2 of undervoltage protection

The test method and test items of verifying the stage 2 of undervoltage







Table 73 Undervoltage protection function setting list


1. 40 U_UV1 Voltage setting for stage 1 of

undervoltage protection V 5 150

2. 0.3 T_UV1 Time setting for stage 1 of

undervoltage protection s 0 60

3. 45 U_UV2 Voltage setting for stage 2 of

undervoltage protection V 5 150

4. 0.6 T_UV2 Time setting for stage 2 of

undervoltage protection s 0 60

5. 1.05 Dropout_UV Dropout ratio for undervoltage

protection 1.01 2

6. 0.1In I_UV_Chk Current setting for undervoltage



131

Table 74 Undervoltage protection binary setting list


1. 1 Func_UV1 Undervoltage stage 1 enabled

or disabled 0 1

2. 0 UV1 Trip Undervotage stage 1 tripping or

alarming enabled or disabled 0 1

3. 1 Func_UV2 Undervoltage stage 2 enabled

or disabled 0 1

4. 0 UV2 Trip Undervotage stage 2 tripping or

alarming enabled or disabled 0 1

5. 1 UV PE

Phase to earth or phase to

phase measured for

undervoltage protection

0 1

6. 1 UV Chk All Phase

Three phase voltage or singal

phase voltage checked for

undervoltage protection

0 1

7. 1 UV Chk Current Current setting for

undervoltage protection 0 1

8. 0 UV Chk CB CB Aux. contact supervised for

undervoltage protection 0 1

8.10 Displacement voltage protection






1 Verifying the voltage setting



105% of the residual voltage setting verifying

Binary setting

Settings/ProtContwd/Pls Input SetGrNo/3V0/Func_3V01, set the

binary setting as 1

Settings/ProtContwd/Pls Input SetGrNo/3V0/3V01 Trip, set the

binary setting as 1


132


Settings/ProtContwd/Pls Input SetGrNo/3V0/3U0 Calculated, set


Setting value Settings/ProtSet/Pls Input SetGrNo/3V0, the detail setting list


Binary input None

Fault simulation

Pre-fault stage:


Fault stage:

Residual voltage value: 105% of the setting value

Residual voltage time: longer than the setting value

Test result

IED operation:

The corresponding output contacts of displacement voltage


Report:

―Relay Startup‖

―3V01 Trip‖

95% of the residual voltage setting verifying

Binary setting


binary setting as 1


binary setting as 1





Binary input None

Fault simulation

Pre-fault stage:


Fault stage:



Test result

IED operation:



2 Veritying the time setting



Binary setting


binary setting as 1



133


binary setting as 1





Binary input None

Fault simulation

Pre-fault stage:


Fault stage:



Test result

IED operation:




Report:

―Relay Startup‖

―3V01 Trip‖

8.10.1.2 Verifying the settings of stage 2 of residual voltage protection

The test method and test items of verifying the stage 2 of residual voltage







Table 77 Overvoltage protection function setting list


1. 20 U_3V01 Voltage setting for displacement

voltage protection stage 1 V 2.00 100.0

2. 0.1 T_3V01 Time setting for displacement

voltage protection stage 1 s 0.00 60.00

3. 10 U_3V02 Voltage setting for displacement

voltage protection stage 2 V 2.00 100.0


134


4. 1 T_3V02 Time setting for displacement

voltage protection stage 2 s 0.00 60.00

Table 78 Overvoltage protection binary setting list


1. 1 Func_3V01 Displacement voltage stage 1


2. 0 3V01 Trip Displacement voltage stage 1

trip or alarm 0 1

3. 1 Func_3V02 Displacement voltage stage 2


4. 0 3V02 Trip Displacement voltage stage 2

trip or alarm 0 1

5. 1 3U0 Calculated

Displacement voltage is

calculated or measured form

VT

0 1

6. 0 3V0 Init CBF

Displacement voltage

protection initiate CBF enabled

or disabled

0 1

8.11 Circuit breaker failure protection




8.11.1 Verifying the settings of stage 1 of CBF protection

8.11.1.1 Verifying the settings of stage 1 of CBF protection

1 Verifying the phase A settings





Binary setting Settings/ProtContwd/Pls Input SetGrNo/CBF_PD_DZ

/Func_CBF, set the binary setting as 1


135


Setting value

Settings/ProtSet/Pls Input SetGrNo/CBF_PD_DZ, the detail


section

Binary input Active the binary input of ―PhA Init CBF‖

Fault simulation

Pre-fault stage:


Fault stage:

Active the binary input of ―PhA Init CBF‖




Test result

IED operation:

The corresponding output contacts of circuit breaker failure


Report:

―Relay Startup‖

―CBF Startup‖

―CBF1 Trip‖




Setting value



section


Fault simulation

Pre-fault stage:


Fault stage:





Test result

IED operation:



1.2 Verifying the zero sequence current setting






136



Settings/ProtContwd/Pls Input SetGrNo/CBF_PD_DZ/CBF Chk

3I0/3I2, set the binary setting as 1

Setting value



section


Fault simulation

Pre-fault stage:


Fault stage:




Zero sequence current: 105% of the setting value


Test result

IED operation:



Report:

―Relay Startup‖

―CBF Startup‖

―CBF1 Trip‖


Binary setting

Settings/ProtContwd/Pls Input SetGrNo/CBF_PD_DZ




Setting value



section


Fault simulation

Pre-fault stage:


Fault stage:






Test result

IED operation:




137

1.3 Verifying the negative sequence current setting

Table 81 Negative sequence current setting verifying


105% of the negative sequence current setting verifying

Binary setting





Setting value



section


Fault simulation

Pre-fault stage:


Fault stage:






Test result

IED operation:



Report:

―Relay Startup‖

―CBF Startup‖

―CBF1 Trip‖


Binary setting





Setting value



section


Fault simulation

Pre-fault stage:


Fault stage:





138




Test result

IED operation:



1.4 Verifying the CB status

Table 82 CB status verifying


Don’t active the binary input of ―PhA CB Open‖

Binary setting




CB Status, set the binary setting as 1

Setting value



section

Binary input Don’t active the binary input of ―PhA CB Open‖

Active the binary input of ―3Ph Init CBF‖

Fault simulation

Pre-fault stage:


Fault stage:





Test result

IED operation:



Report:

―Relay Startup‖

―CBF Startup‖

―CBF1 Trip‖

Active the binary input of ―PhA CB Open‖

Binary setting





Setting value



section


139


Binary input Active the binary input of ―PhA CB Open‖


Fault simulation

Pre-fault stage:


Fault stage:





Test result

IED operation:








Setting value



section


Fault simulation

Pre-fault stage:


Fault stage:





Test result

IED operation:




Report:

―Relay Startup‖

―CBF Startup‖

―CBF1 Trip‖


The test method and test items of verifying the settings of other phase


140

protection are same as phase A, only need to change the corresponding test

conditions and settings into the conrresponding phase A required.

3 Verifying the CB close status


Active the binary input of ―3Ph CB Close‖

Binary setting






BI_3Ph_CB_Close, set the binary setting as 1

Setting value



section

Binary input


Active the binary input of ―3Ph Int CBF‖


Fault simulation

Pre-fault stage:


Fault stage:






Test result

IED operation:



Report:

―Relay Startup‖

―CBF Startup‖

―CBF1 Trip‖

Don’t active the binary input of ―3Ph CB Close‖

Binary setting






BI_3Ph_CB_Close, set the binary setting as 1

Setting value



section


141


Binary input



Don’t Active the binary input of ―3Ph CB Close‖

Fault simulation

Pre-fault stage:


Fault stage:



Don’t Active the binary input of ―3Ph CB Close‖



Test result

IED operation:



4 Verifying the function of single-phase failure to trip three-phase




Binary setting



Settings/ProtContwd/Pls Input SetGrNo/CBF_PD_DZ/CBF 1P

Trip 3P, set the binary setting as 1

Setting value



section


Fault simulation

Pre-fault stage:


Fault stage:





Test result

IED operation:




Report:

―Relay Startup‖


142


―CBF Startup‖

―CBF 1P Trip 3P‖

Note: The function of single phase failure trip three phase is only applicable

for single phase CBF protection.

8.11.1.2 Verifying the settings of stage 2 of CBF protection

The test method and test items of verifying the stage 2 of CBF protection are

same as stage 1, only need to change the corresponding test conditions and

settings into the conrresponding stage 2 required.

Note: Stage 2 of CBF protection do not have the function of single-phase

failure to trip three phase.





Table 85 Circuit breaker failure protection function setting list


1. 0.5In I_CBF Phase current setting for CBF


2. 0.2In 3I0_CBF Zero-sequence current setting

for CBF protection A 0.05 100

3. 0.2In 3I2_CBF Negative-sequence current

setting for CBF protection A 0.05 100

4. 0 T_CBF1 Delay time for stage 1 of CBF

protection s 0 32

5. 0.1 T_CBF 1P Trip 3P Time setting for single-phase

failure to trip three-phase s 0.05 32

6. 0.2 T_CBF2 Delay time for stage 2 of CBF

protection s 0.1 32

Table 86 Circuit breaker failure protection binary setting list



143

1. 1 Func_CBF CBF protection enabled or

disabled 0 1

2. 0 CBF 1P Trip 3P Single phase failure to trip three

phase enabled or disabled 0 1

3. 1 CBF Chk 3I0/3I2

Zero- and negative-sequence

current setting for CBF

protection

0 1

4. 0 CBF Chk CB Status CB auxiliary contact checked for

CBF protection 0 1

5. 0 CBF Chk

BI_3Ph_CB_Close

Checking three phase CB close

status via binary input for CBF

protection

0 1

8.12 Dead zone protection










Binary setting


/Func_Dead Zone, set the binary setting as 1



Setting value



section

Binary input


Active the binary input of ―PhA CB Open‖, ―PhB CB Open‖ and―PhC

CB Open‖





144


Fault stage:





Test result

IED operation:

The corresponding output contacts of dead zone protection

should be closed

Report:

―Relay Startup‖

―Dead Zone Trip‖


Binary setting





Setting value



section

Binary input



CB Open‖


Fault simulation

Pre-fault stage:


Fault stage:





Test result

IED operation:


should not close




Binary setting






145


Setting value



section

Binary input



CB Open‖


Fault simulation

Pre-fault stage:


Fault stage:





Test result

IED operation:



technical data

Report:

―Relay Startup‖

―Dead Zone Trip‖









Table 89 Dead zone protection function setting list


1. 1 T_Dead Zone Time delay for dead zone

protection s 0 32

2. 0.5In I_CBF Phase current setting for CBF A 0.05 100


146

protection

Table 90 Dead zone protection binary setting list


1. 1 Func_Dead Zone Dead Zone protection enabled or

disabled 0 1

2. 1 Func_CBF CBF protection enabled or

disabled 0 1

8.13 STUB protection










Binary setting Settings/ProtContwd/Pls Input SetGrNo/STUB/Func_STUB, set


Setting value Settings/ProtSet/Pls Input SetGrNo/STUB, the detail setting list


Binary input Active the binary input of ―STUB Enable‖

Fault simulation

Pre-fault stage:


Fault stage:

Active the binary input of ―STUB Enable‖




Test result

IED operation:

The corresponding output contacts of STUB protection should

be closed

Report:


147


―Relay Startup‖

―STUB Trip‖







Fault simulation

Pre-fault stage:


Fault stage:





Test result

IED operation:


not close









Fault simulation

Pre-fault stage:


Fault stage:





Test result

IED operation:


be closed, and the operate time meets the requirement in

technical data

Report:

―Relay Startup‖

―STUB Trip‖


148

1.3 Verifying the binary input








Fault simulation

Pre-fault stage:


Fault stage:





Test result

IED operation:


be closed

Report:

―Relay Startup‖

―STUB Trip‖

Don’t Active the binary input of ―STUB Enable‖





Binary input Don’t active the binary input of ―STUB Enable‖

Fault simulation

Pre-fault stage:


Fault stage:

Don’t active the binary input of ―STUB Enable‖




Test result

IED operation:


not close






149





Table 93 STUB protection function setting list


1. 1.2In I_STUB Current setting for STUB protection A 0.05 100

2. 1 T_STUB Delay time for STUB protection s 0 60

Table 94 STUB protection binary setting list


1. 1 Func_STUB STUB protection enabled or disabled 0 1

2. 1 STUB Init CBF Circuit breaker failure protection

initiated by STUB protection 0 1

8.14 Poles discordance protection





8.14.1.1 Without the zero-sequence and nagetive-sequence current

discrimination

Table 95 Verifying the binary input


Active any one or two of the binary input

Binary setting

Settings/ProtContwd/Pls Input SetGrNo/CBF_PD_DZ /Func_PD,


Settings/ProtContwd/Pls Input SetGrNo/ CBF_PD_DZ /PD Chk


Setting value Settings/ProtSet/Pls Input SetGrNo/CBF_PD_DZ, the detail


150



section

Binary input Active any one or two of the binary input of ―PhA CB Open‖, ―PhB

CB Open‖ and―PhC CB Open‖

Fault simulation

Pre-fault stage:


Fault stage:

Active any one or two of the binary input of ―PhA CB Open‖, ―PhB


Test result

IED operation:

The corresponding output contacts of poles discordance


Report:

―Relay Startup‖

―PD Trip‖

Active three-phase binary input or don't active the binary input

Binary setting





Setting value



section

Binary input Active three-phase binary input or don't active the binary input of

―PhA CB Open‖, ―PhB CB Open‖ and―PhC CB Open‖

Fault simulation

Pre-fault stage:


Fault stage:

Active three-phase binary input or don't active the binary input of

―PhA CB Open‖, ―PhB CB Open‖ and―PhC CB Open‖

Test result

IED operation:



8.14.1.2 Zero sequence and negative sequence current discrimination

1 Zero sequence current discrimination

1.1 Verifying the zero sequence current setting




151



Binary setting





Setting value



section



Fault simulation

Pre-fault stage:


Fault stage:



Open phase: no current

Zero sequence current: 105% of the zero sequence current

setting


Test result

IED operation:



Report:

―Relay Startup‖

―PD Trip‖


Binary setting





Setting value



section



Fault simulation

Pre-fault stage:


Fault stage:





setting


152



Test result

IED operation:



Report:

―Relay Startup‖

―PD Trip‖




Binary setting





Setting value



section



Fault simulation

Pre-fault stage:


Fault stage:





setting


Test result

IED operation:




Report:

―Relay Startup‖

―PD Trip‖

2 Negative sequence current discrimination

2.1 Verifying the negative sequence current setting


153

Table 98 Negative sequence current setting verifying



Binary setting





Setting value



section



Fault simulation

Pre-fault stage:


Fault stage:




Negative sequence current: 105% of the negative sequence

current setting


Test result

IED operation:



Report:

―Relay Startup‖

―PD Trip‖


Binary setting





Setting value



section



Fault simulation

Pre-fault stage:


Fault stage:





154



current setting


Test result

IED operation:






Binary setting





Setting value



section



Fault simulation

Pre-fault stage:


Fault stage:





current setting


Test result

IED operation:




Report:

―Relay Startup‖

―PD Trip‖





155


Table 100 Poles discordance protection function setting list


1. 0.4In 3I0_PD Zero sequence current setting for

poles discordance protection A 0.05 100

2. 0.4In 3I2_PD Negative sequence current setting

for poles discordance protection A 0.05 100

3. 2 T_PD Time setting for poles discordance

protection s 0 60

Table 101 Poles discordance protection binary setting list


1. 1 Func_PD Poles discordance protection enabled

or disabled 0 1

2. 0 PD Chk 3I0/3I2 Zero- or negative-sequence current

checking enabled or disabled 0 1

3. 1 PD Init CBF

Circuit breaker failure protection

initiated by poles discordance

protection

0 1

8.15 Synchro-check and energizing check function






156

UA

UB

UC

UN

U4

UA

UB

UC

UN

U4

Tester IED

U4' U4'

Figure 15 Connection example of synchro-check function

If the tester can't provide the reference voltage U4, the wiring connection is

shown in Figure 16.

UA

UB

UC

UN

UA

UB

UC

UN

U4

Tester IED

U4'

Figure 16 Connection example of synchro-check function

8.15.1.1 Synchro-check function

1 Verifying the phase A of synchro-check

1.1 Verifying the voltage difference

Table 102 Voltage difference setting verifying


157


≤ 1 V of the setting value

Binary setting

Settings/ProtContwd/Pls Input SetGrNo/AR/AR_Syn check, set


Settings/ProtContwd/Pls Input SetGrNo/AR/AR_3p mode, set


Setting value Settings/ProtSet/Pls Input SetGrNo/AR, the detail setting list refer


Binary input Active the binary input of ―3Ph init AR‖ from 1 to 0

Synchronism condition

Pre-reclosing stage:

Input the rated voltage to three phase and and U4 for 3s

Reclosing stage:

Active the binary input of ―3Ph init AR‖ from 1 to 0

Synchro-check phase: phase A

Three phase voltage: rated voltage

Reference voltage: U_UA - voltage difference setting + 1 ≤ U_U4

≤ U_UA + voltage difference setting - 1

Frequency difference: 0

Angle difference: 0

Checking time: longer than the setting value

Test result

IED operation:

The synchronization checking is successful

Report:

―Syn Phase Change PhA‖

―Relay Startup‖

―1Ph Trip Init AR‖

―AR in progress‖

―Syn Request‖

―Syn OK‖

―1st Reclose‖

―AR Success‖

> 1 V of the setting value

Binary setting











Reclosing stage:




158



Reference voltage: U_U4 < U_UA - voltage difference setting – 1

or U_U4 > U_UA + voltage difference setting + 1


Angle difference: 0



The synchronization checking fail

1.2 Verifying the frequency difference

Table 103 Frequency difference setting verifying


≤ 20 mHz of the setting value

Binary setting











Reclosing stage:




Reference voltage: rated voltage

Voltage difference: 0

Frequency difference: f_UA - frequency difference setting +

20mHz ≤ f_U4 ≤ f_UA + frequency difference setting - 20mHz

Angle difference: 0


Test result

IED operation:


Report:


―Relay Startup‖



―Syn Request‖

―Syn OK‖


159


―1st Reclose‖

―AR Success‖

> 20 mHz of the setting value

Binary setting











Reclosing stage:






Frequency difference: f_U4 < f_UA - frequency difference setting -

20mHz or f_U4 > f_UA + frequency difference setting + 20mHz

Angle difference: 0




1.3 Verifying the angle difference

Table 104 Angle difference setting verifying


≤ 3° of the setting value

Binary setting











Reclosing stage:




160






Angle difference: Angle_UA - Angle difference setting + 3° ≤

Angle_U4 ≤ Angle_UA + Angle difference setting - 3°


Test result

IED operation:


Report:


―Relay Startup‖



―Syn Request‖

―Syn OK‖

―1st Reclose‖

―AR Success‖

> 3° of the setting value

Binary setting











Reclosing stage:







Angle difference: Angle_U4 < Angle_UA - Angle difference setting

- 3° or Angle_U4 > Angle_UA + Angle difference setting + 3°




1.4 Verifying the minimum voltage for synchro-check


161

Table 105 Minimum voltage for synchro-check setting verifying


105% of the setting value

Binary setting











Reclosing stage:



Three phase voltage: 105% of the setting value

Reference voltage: 105% of the setting value



Angle difference: 0


Test result

IED operation:


Report:


―Relay Startup‖



―Syn Request‖

―Syn OK‖

―1st Reclose‖

―AR Success‖

95% of the setting value

Binary setting











Reclosing stage:


162








Angle difference: 0




2 Verifying the synchro-check settings of other phase




8.15.1.2 Energizing check

1 VT at busbar side

1.1 Verifying the phase A setting

1.1.1 Checking the dead line live busbar

Table 106 Maximum energizing voltage setting verifying


97% of the setting verifying

Binary setting

Settings/ProtContwd/Pls Input SetGrNo/AR/

AR_EnergChkDLLB, set the binary setting as 1



Settings/ProtContwd/Pls Input SetGrNo/Common/VT_Line, set





Energizing condition



Reclosing stage:


Energizing check phase: phase A


163





Test result

IED operation:

The energizing checking is successful

Report:


―Relay Startup‖



―AR_EnergChk OK‖

―1st Reclose‖

―AR Success‖


Binary setting


AR_EnergChkDLLB, set the binary setting as 1











Reclosing stage:







The energizing checking fail

1.1.2 Checking the live line dead busbar




Binary setting


AR_EnergChkLLDB, set the binary setting as 1



164











Reclosing stage:






Test result

IED operation:


Report:


―Relay Startup‖




―1st Reclose‖

―AR Success‖


Binary setting













Reclosing stage:








165



1.1.3 Checking the dead line dead busbar




Binary setting


AR_EnergChkDLDB, set the binary setting as 1











Reclosing stage:






Test result

IED operation:


Report:


―Relay Startup‖




―1st Reclose‖

―AR Success‖


Binary setting









166







Reclosing stage:












2 VT at line side

2.1 Verifying the phase A setting

2.1.1 Checking the dead line live busbar




Binary setting













Reclosing stage:




167





Test result

IED operation:


Report:


―Relay Startup‖




―1st Reclose‖

―AR Success‖


Binary setting













Reclosing stage:








2.1.2 Checking the live line dead busbar




Binary setting





168











Reclosing stage:






Test result

IED operation:


Report:


―Relay Startup‖




―1st Reclose‖

―AR Success‖


Binary setting













Reclosing stage:








169



2.1.3 Checking the dead line dead busbar




Binary setting













Reclosing stage:






Test result

IED operation:


Report:


―Relay Startup‖




―1st Reclose‖

―AR Success‖


Binary setting









170







Reclosing stage:
















Table 112 Synchro-check and energizing check function setting list


1. 30 Angle_Syn Diff Angle difference for

synchro-check function Degree 1 80

2. 10 U_Syn Diff Voltage difference for

synchro-check function V 1 40

3. 0.05 Freq_Syn Diff Frequency difference for

synchro-check function Hz 0.02 2

4. 0.05 T_Syn Check Time for synchro-check

function s 0 60

5. 10 T_MaxSynExt Maximum time for exiting

synchronization check s 0.05 60

6. 40 Umin_Syn Minimum voltage for

synchronization check V 30 65


171


7. 30 Umax_Energ Maximum voltage for

Energizing check V 10 50

Table 113 Synchro-check and energizing check binary setting list


1. 0 AR_3p mode Three phase mode for AR


2. 0 AR_EnergChkDLLB

Dead line live bus of

energizing check for AR

enabled or disabled

0 1

3. 0 AR_EnergChkLLDB

Live line dead bus of


enabled or disabled

0 1

4. 0 AR_EnergChkDLDB

Dead line dead bus of


enabled or disabled

0 1

5. 0 AR_Syn check Synchronization check for AR


8.16 Auto-reclosing function





8.16.1.1 Verifying the shot 1 of auto-reclosing function

1 Single-phase auto-reclosing mode

1.1 Verifying the phase A

Table 114 Phase A auto-reclosing verifying


Binary setting Settings/ProtContwd/Pls Input SetGrNo/AR/AR_1p mode, set



172




Binary input Active the binary input of ―PhA init AR‖ from 1 to 0

Auto-reclosing

condition



Reclosing stage:

Active the binary input of ―PhA init AR‖ from 1 to 0

Reclosing time: longer than the setting value

Test result

IED operation:

The corresponding output contacts of reclosing function should

be closed

Report:

―Relay Startup‖



―1st Reclose‖

―AR Success‖

1.2 Verifying the other phase

The test method of verifying the other phase is same as phase A, only need to

change the corresponding test conditions and settings into the

conrresponding other phase required.

2 Three-phase auto-reclosing mode

Table 115 Three phase autoreclosing verifying


Binary setting








Auto-reclosing

condition



Reclosing stage:






173



Angle difference: 0


Test result

IED operation:


Report:


―Relay Startup‖



―Syn Request‖

―Syn OK‖

―1st Reclose‖

―AR Success‖

3 Single-phase/three-phase auto-reclosing mode

3.1 Verifying the phase A and three phase

Table 116 Phase A and three phase autoreclosing verifying


Single-phase auto-reclosing

Binary setting Settings/ProtContwd/Pls Input SetGrNo/AR/AR_1p(3p) mode,





Auto-reclosing

condition



Reclosing stage:

Active the binary input of ―PhA init AR‖ from 1 to 0


Test result

IED operation:

The corresponding output contacts of reclosing function should

be closed

Report:

―Relay Startup‖



―1st Reclose‖

―AR Success‖

Three-phase auto-reclosing


174


Binary setting








Auto-reclosing

condition



Reclosing stage:




Reference voltage: 0


Angle difference: 0


Test result

IED operation:


Report:


―Relay Startup‖



―Syn Request‖

―Syn OK‖

―1st Reclose‖

―AR Success‖

3.2 Verifying the other phase

The test method of verifying the other phase is same as described above,

only need to change the corresponding test conditions and settings into the

conrresponding other phase required.

8.16.1.2 Verifying the other shots of auto-reclosing function

The test method of verifying the other short is same as shot 1, only need to

change the corresponding test conditions and settings into the

conrresponding shot 1 required.



175




Table 117 Auto-reclosing function setting list


1. 0.6 T_1P AR1 Time delay setting for shot 1 of

single phase auto-reclosing s 0.05 10








three phase auto-reclosing s 0.05 60







9. 80 T_Action Pulse length setting for

auto-reclosing ms 80 500

10. 3 T_Reclaim Reclaim time setting s 0.05 60

11. 1 T_CB Faulty Time setting for spring charging s 0.5 60

12. 1 Times_AR Number of auto-reclosing shots 1 4

13. 0.05 T_Syn Check Time setting for synchro-check

function s 0 60

14. 10 T_MaxSynExt Time setting for exiting the

synchronization checking s 0.05 60

15. 3 T_AR Reset Time setting for preparing for

future reclosure s 0.5 60

16. 20 T_WaitMaster Time setting for blocking AR of tie

breaker by AR of side breaker s 0.01 60

Table 118 Auto-reclosing function binary setting list


1. 1 AR_1p mode Single phase auto-reclosing

mode 0 1


176


2. 0 AR_3p mode Three phase auto-reclosing

mode 0 1

3. 0 AR_1p(3p) mode Single/three phase

auto-reclosing mode 0 1

4. 0 AR_Disable Auto-reclosing function

disabled 0 1

5. 1 AR_Override Override mode for AR enabled

or disabled 0 1

6. 0 AR_Syn check Synchro-check for AR enabled

or disabled 0 1

7. 0 AR_EnergChkDLLB Checking dead line live bus for

AR 0 1

8. 0 AR_EnergChkLLDB Checking live line dead bus for

AR 0 1

9. 0 AR_EnergChkDLDB Checking dead line dead bus

for AR 0 1

10. 0 AR_Chk3PVol Three phase voltage check for

single phase AR 0 1

11. 0 AR Final Trip Permanent trip 0 1

12. 0 1P CBOpen Init AR AR initiated by single phase CB

open 0 1

13. 0 3P CBOpen Init AR AR initiated by three phase CB

open 0 1

14. 0 Mode 2/3CB AR used for 2/3 CB

arrangement 0 1

15. 0 CB_Master Side breaker or tie breaker 0 1

8.17 Current transformer secondary circuit supervision









177



Binary setting

Settings/ProtContwd/Pls Input SetGrNo/Common/CT Fail, set


Settings/ProtContwd/Pls Input SetGrNo/Common/3I0

Calculated_CT Fail, set the binary setting as 1



Binary input None

Fault simulation

Pre-fault stage:


Fault stage:

CT failure phase: phase A


CT failure supervision time: longer than 12s

Test result

IED operation:

The corresponding output contacts of CT failure supervision


Report:

―CT Fail‖


Binary setting

Settings/ProtContwd/Pls Input SetGrNo/Common/CT Fail, set


Settings/ProtContwd/Pls Input SetGrNo/Common/3I0

Calculated_CT Fail, set the binary setting as 1



Binary input None

Fault simulation

Pre-fault stage:


Fault stage:

CT failure phase: phase A


CT failure supervision time: longer than 12s

Test result

IED operation:

The corresponding output contacts of CT failure supervision







178





Table 120 CT failure supervision function setting list


1. 0.2In 3I0_CT Fail Maximum zero-sequence current for

detecting CT failure A 0.05 10

Table 121 CT failure supervision binary setting list


1. 1 Func_CT Fail

CT failure supervision

function enabled or

disabled

0 1

2. 0 3I0 Calculated_CT Fail 3I0 calculated or measured 0 1

8.18 Voltage transformer secondary circuit supervision





8.18.1.1 Three-phase VT failure surpervision

1 Verifying the phase-to-earth voltage setting

Table 122 Phase-to-earth voltage setting verifying


95% of the phase-to-earth voltage setting verifying

Binary setting Settings/ProtContwd/Pls Input SetGrNo/Common/Func_VT Fail,



179




Binary input None

Fault simulation

Pre-fault stage:


Startup element: no startup element operate

Fault stage:


VT failure phase: phase A, B, C

Maximum voltage: 95% of the setting value

Zero sequence voltage: 0

Phase current: 120% of the setting value

Zero and negative sequence current: 0

Time duration: longer than 12s

Test result

IED operation:

The corresponding output contacts of VT failure supervision


Report:

―VT Fail‖






Binary input None

Fault simulation

Pre-fault stage:



Fault stage:








Test result

IED operation:



2 Verifying the current setting

2.1 Verifying the phase current setting


180








Binary input None

Fault simulation

Pre-fault stage:



Fault stage:








Test result

IED operation:



Report:

―VT Fail‖






Binary input None

Fault simulation

Pre-fault stage:



Fault stage:











181



2.2 Verifying the zero/negative sequence current setting



95% of the zero and negative sequence current setting verifying





Binary input None

Fault simulation

Pre-fault stage:



Fault stage:






Zero and negative sequence current: 95% of the setting


Test result

IED operation:



Report:

―VT Fail‖

105% of the zero or negative sequence current setting verifying





Binary input None

Fault simulation

Pre-fault stage:



Fault stage:






182



Zero or negative sequence current: 105% of the setting


Test result

IED operation:



8.18.1.2 Single/ two phases VT failure supervision

1 Solid earthed system

1.1 Verifying the setting of single phase failure supervision

1.1.1 Verifying the phase-to-earth voltage setting




Binary setting

Settings/ProtContwd/Pls Input SetGrNo/Common/Func_VT Fail,


Settings/ProtContwd/Pls Input SetGrNo/Common/Solid Earth,




Binary input None

Fault simulation

Pre-fault stage:



Fault stage:


VT failure type: single phase

Zero sequence voltage: 105% of the (setting value -1V)



Test result

IED operation:



Report:

―VT Fail‖





183






Binary input None

Fault simulation

Pre-fault stage:



Fault stage:


VT failure phase: single phase




Test result

IED operation:



1.2 Verifying the setting of two-phase failure supervision

The test method and test items of verifying the two phase failure supervision

are same as single phase failure supervision, only need to change the

corresponding test conditions and settings into the conrresponding two phase

required.

2 Isolated system

2.1 Verifying the setting of single phase failure supervision

2.1.1 Verifying the phase-to-earth voltage setting




Binary setting







Binary input None



184




Fault stage:





Max(Uab, Ubc, Uca) –Min(Uab, Ubc, Uca): 120% of the

phase-to-phase setting value



Test result

IED operation:



Report:

―VT Fail‖


Binary setting







Binary input None

Fault simulation

Pre-fault stage:



Fault stage:









Test result

IED operation:



2.1.2 Verifying the phase-to-phase voltage setting

Table 127 phase-to-phase voltage setting verifying


185


105% of the phase-to-phase voltage setting verifying

Binary setting







Binary input None

Fault simulation

Pre-fault stage:



Fault stage:









Test result

IED operation:



Report:

―VT Fail‖

95% of the phase-to-phase voltage setting verifying

Binary setting







Binary input None

Fault simulation

Pre-fault stage:



Fault stage:








186




Test result

IED operation:



2.2 Verifying the setting of two-phase failure supervision

The test method and test items of verifying the two phase failure supervision

are same as single phase failure supervision, only need to change the

corresponding test conditions and settings into the conrresponding two phase

required.

8.18.1.3 Verifying the voltage restoring setting

1 Verifying the voltage setting








Binary input None

Fault simulation

Pre-fault stage:



Fault stage:



Voltage value: 70% of the setting value





Restore stage:

Minimun voltage value: 105% of the setting value for three phase

Time duration: Longer than 12s

Test result

IED operation:

After the VT failure contanct operates, the report of voltage

restore is issued


187


Report:

―VT Fail‖

―VT Recovery‖






Binary input None

Fault simulation

Pre-fault stage:



Fault stage:



Voltage value: 70% of the setting value





Restore stage:

Maxmum voltage value: 95% of the setting value

Time duration: Longer than 12s

Test result

IED operation:

After the VT failure contanct operates, the report of voltage

restore is not issued

Report:

―VT Fail‖





Table 129 VT failure supervision function setting list


1. 0.1In I_VT Fail Phase current setting for VT failure

supervision A 0.05 1


188

2. 0.1In 3I02_VT Fail

Zero- and negative- sequence

current setting for VT failure

supervision

A 0.05 1

3. 8 Upe_VT Fail Phase to earth voltage setting for VT

failure supervision V 7 20

4. 16 Upp_VT Fail Phase to phase voltage setting for

VT failure supervision V 10 30

5. 40 Upe_VT Normal Voltage restoring setting after VT

failure V 40 65

Table 130 VT failure supervision function setting list


1. 1 VT Fail VT failure supervision function


2. 1 Solid Earth Solid earthed system or isolated

system 0 1

8.19 Monitoring function

8.19.1 Reference voltage monitoring




8.19.1.1 Verifying the setting

For the reference voltage verifying, the user can refer to the section of

―Synchro-check and energizing check function‖ in this chapter.

8.19.1.2 Completing the test



8.19.2 Auxiliary contact of circuit breaker monitoring





189

8.19.2.1 Testing the function

1 Checking the auxiliary contact of CB of phase A

Table 131 Auxiliary contact of circuit breaker verifying


Binary setting None

Setting value None

Binary input Active the binary input of ―PhA CB Open‖

Fault simulation

Pre-fault stage:


Fault stage:


Active the binary input of ―PhA CB Open‖

Current phase: phase A

Current value: larger than 0.1In (In: rated current)


Test result

IED operation:

The corresponding alarm report should be issued

Report:

―PhA CB Open Err‖

2 Checking the auxiliary contact of CB of other phase

The test method of checking the other phase are same as phase A, only need

to change the corresponding test conditions into the conrresponding other

phase required.

8.19.2.2 Completing the test




190

9 Checking before operation

Note: The following items are only for reference. Users should make the

proper operation guideline based on the actual site conditions

9.1 Checking the LED

Power on the IED, the LED ―Run‖ is lit steadily in green, other LEDs should be

extinguished.

9.2 Checking the display on LCD

In normal operation condition, the information of ―year-month-day, hour :

minute : second, magnitude and angle of analog quantities, channel state,

current setting group: 01‖ should be scrolling displayed on the LCD.

9.3 Checking the clock

After setting the date and time of the IED, power on and off the IED with five

times in short time, checking the tolerance of date and time is within the

permissible range.

9.4 Checking the voltage and current

Inject system currents (load current must be larger than 0.08In) and voltages

into the IED, and then check whether the magnitude, phase angle, polarity

and phase sequence of each measuring analog value are correct or not.

9.5 Checking the setting group

Make sure the active setting group is correct.

9.6 Checking the setting

Checking the settings one by one of each group which are possibly used in

the actual operation modes.


191

9.7 Checking the binary input

Check the state of all binary inputs. Particularly ensure that the IED is not in

test mode, meaning there is not a hand type icon displayed at the upright

corner of the LCD.

9.8 Checking the normal operation mode

9.8.1 Trip and close test with the circuit breaker

9.8.1.1 Switching the circuit breaker state by local command

Trip and close the circuit breaker, the corresponding feedback state of circuit

breaker injected via binary inputs should be read out and compared with the

actual state of circuit breaker, the displayed state should be in accordance

with the actual state.

9.8.1.2 Switching the circuit breaker state from remote control center

If the IED is connected to a remote substation via SCADA, the corresponding

switching tests may also be checked from the substation.

9.9 Put into operation

If all the checking items described above and the other checking items need to be

performed according to the site condition have been checked and correct, the IED can be

put into operation.


192

Chapter 7 Operating maintenance

193


About this chapter

This chapter introduces attentions and the required checking,

operation after updating software or replacing modules and the

measure for alarm information.


194

1 Attentions during operating

Warning

Do not disconnect the secondary circuit connection of current

transformer without short-circuiting the transformer's secondary

winding. Operating a current transformer with the secondary

winding open will cause a masssive potential that may damage the

current transformer and may cause injuries to humans.

Caution

Never connect or disconnect a wire and/or a connector to or from a

IED during normal operation. Dangerous voltages and currents are

present that may be lethal. Operation may be disrupted and IED and

measuring circuitry may be damaged.

Note

Strictly follow the power system operation maintenance instruction

or regulations, the following items for reference:

During operating, prohibition the following operation manually:

Touch the parts of IED with electricity

Plug in and pull out each module

Manually operation to the HMI menu:

Testing binary output

Changing setting value

Setting systme parameter

Changing the IP address

Fault occurrence during operation, if the protection IED tripping, the

corresponding LED in front panel will be lighted, and the event reports

will be displayed in HMI; if the auto-reclosing function operate, the


195

corresponding LED will be lighted and the reports will be displayed in

HMI

If the alarming class I appearance during operation, stop running the IED,

record the alarm information and inform the responsible engineer, at this

time, it is not allowed to press the Reset button. If the alarming class II

appearance, record the alarm information and inform the responsible

engineer to analyse and deal with.


196

2 Routine checking

Checking the LEDs status

Checking scroll display information in HMI

Checking the setting group number


197

3 Periodical checking

Check that the inside and outside of the IED are cleanly and no ash

deposition

All components (including the chips, transformer and relay, etc.) of the

IED are fixed well, no loosing phenomenon, the IED apperance is regular

and no damage and distortion phenomenon

The buttons are operated flexibly with good feeling and fixed reliably

All the IED terminals for connection are firmd without loosing

phenomenon, and the marked number are clear and correct

Energizing the IED with DC power supply for several seconds, the green

―Run‖ LED will be lighted without any alarm or operation lED lighted (if

lighted, press Reset button to reset), the analog quantities is displayed in

HMI

Check the zero drift and scale

Check the operation setting values

Measure the output voltage of power supply

Check the alarm circuit

Check the binary input

Check the tripping and closing circuit

Test the insulation resistance


198

4 Operation after updating software or replacing modules

4.1 Operation after updating software or replacing CPU module

If the IED software needs to be updated or the CPU module needs to be

replaced for some problem that can’t be handled during operation, the

corresponding operation as follows:

Check the address jumper of CPU module is correct, and input and write

the setting values and parameters

Check the CPU software version number and CRC code

Check the zero drift and scale of all analog quantities channel again

Test all the binary inputs and outputs

Check the setting value and setting group

Perform other relevant testing according to the user’s site operating

regulation before the IED is in service

4.2 Operation after updating software or replacing communication module

Downloading the latest version configuration files to the communication

module by software tool

Checking the detail information for the following items:

Checking the communication module version and the software

version

Checking the communication parameter and protocol, etc.

Configuring the communication module configuration according to the

former configuration or enter into the former configuration again

Set the following parameters:


199

The setting value property and communication mode

Set the network address

Set the IED time again

Check the scroll display is correct after energizing

Perform relevant testing operation

4.3 Operation after replacing the binary input or output module

Check the address jumper of the module is correct

Test all the binary inputs or outputs and the related external secondary

circuit before the IED is in service

4.4 Operation after replacing the analog input module

Check the value and polarity of all analog quantities channel is correct

4.5 Operation after replacing power supply module

Check the accuracy of the output voltage

Test the output relay

Test the binary inputs


200

5 The alarm information and measure

5.1 Alarm information class I and the measure

Table 132 Alarm information class I and the measure

Information Description

Sampling Err Sampling is error

Soft Version Err Soft version is error

EquipPara Err Equipment parameter is error

ROM Verify Err ROM verifying is error

Setting Err Setting value is error

Set Group Err Setting group is error

BO No Response No response of binary output

BO Breakdown Binary output breakdown

BI Config Err Binary input configuration is error

BOConfig Err Binary output configuration is error

Sys Config Err System configuration is error

BO EEPROM Err The EEPROM of binary output is error

5.2 Alarm information class II and the measure

Table 133 Alarm information class II and the measure


SRAM Check Err SRAM checking is error

FLASH Check Err FLASH checking is error

BI Comm Fail Binary input communication fail

BO Comm Fail Binary output communication fail

Test BO Un_reset Do not reset after testing binary output

BI Breakdown Binary input breakdown

BI Input Err Binary input error

NO/NC Discord NO/NC discord

BI Check Err Binary input checking is error

BI EEPROM Err The EEPROM of binary input is error

Battery Off Battery off

PhA CB Open Err Phase A of circuit breaker open error

PhB CB Open Err Phase B of circuit breaker open error

PhB CB Open Err Phase C of circuit breaker open error

AI Channel Err Analog input channel error

VT Fail Voltage transformer fail


201


V3P_MCB VT Fail Three phase VT fail of MCB

V1P_MCB VT Fail Single phase VT fail of MCB

BI_V3P_MCB Err Binary input error of three phase MCB

BI_V1P_MCB Err Binary input error of single phase MCB

CT Fail CT Fail

SYN Voltage Err Synchronization voltage error

AR Mode Alarm Autorelosing mode alarm

OC Trip Fail Overcurrent protection trip fail

EF Trip Fail Earth fault protection trip fail

NOC Trip Fail Neutral earth fault trip fail

SEF1 Alarm Stage 1 of sensitive earth fault protection alarm

SEF2 Alarm Stage 2 of sensitive earth fault protection alarm

SEF Inv Alarm Inverse stage of sensitive earth fault protection alarm

SEF Trip Fail Sensitive earth fault protection trip fail

NSOC1 Alarm Stage 1 of egative sequence overcurrent protection alarm

NSOC Inv Alarm Inverse stage of negative sequence overcurrent protection alarm

NSOC Trip Fail negative sequence overcurrent protection trip fail

STUB Trip Fail STUB protection trip fail

Thermal OL Alarm Thermal overload protection alarm

Therm Trip Fail Thermal overload protection trip fail

Overload Alarm Overload alarm

3V01 Alarm Stage 1 of displacement voltage protection alarm

3V02 Alarm Stage 2 of displacement voltage protection alarm

3V0 Trip Fail Displacement voltage protection trip fail

OV1 Alarm Stage 1 of overvoltage protection alarm

OV2 Alarm Stage 2 of overvoltage protection alarm

OV Trip Fail Stage 1 of overvoltage protection trip fail

UV1 Alarm Stage 1 of undervoltage protection alarm

UV2 Alarm Stage 2 of undervoltage protection alarm

UV Trip Fail Stage 1 of undervoltage protection trip fail

BI_Init CBF Err Binary input for initiation CBF protection error

CB Err Blk PD Circuit breaker error for blocking pole discordance protection

PD Trip Fail Pole discordance protection trip fail


202

Chapter 8 Transportation and storage

203


About this chapter

This chapter describes how to transport and store the IED.


204

1 Transportion

The IED can be transported by means of conveyance, such as car, train, ship, etc. In order to ensure the perfect performance of the IED, prevent the IED from rain, snow, vibration, shock and bump.


205

2 Storage

If the IED is to be stored before installation, this is must be done in the original

transport casing in a dry and dust free place. The packed IED should be

stored in a waterproof and snow proof place without acid or alkaline or other

corrosive gas and explosive gas. The storage temperature is from -25°C to

+40°C, and the relative humidity does not exceed 80%. Observe the

environmental requirements stated in the technical data.


206

Chapter 9 Appendix

207

Chapter 9 Appendix

About this chapter

This chapter contains the diagram of modules arrangement,

typical connection, glossary and the protocol data table.

Chapter 9 Appendix

208

1 Arrangement diagram of modules

Test port

X3

COM

X6X7X8X 9 X1

AIM

X10

PSM

Ethernet ports

X5 X4

For BIM and BOM

Figure 17 The arrangement diagram of modules

Chapter 9 Appendix

209

2 Typical diagram

A. Application for line

IA

IB

IC

UB

UA

UC

U4

IN

UN

Protection IED

A

B

C

* * *

a01

a02

a03

a04

b01

b02

b03

b04

a12

a11

b11

b12

a10

b10

Figure 18 Typical connection of feeder backup protection for VT in bus side

Chapter 9 Appendix

210

B. Application for transformer

* * *

A

BC

A

B

C

*

A B C

b05

a05

I

IA

IB

IC

UB

UA

UC

IN

UN

Protection IED

a01

a02

a03

a04

b01

b02

b03

b04

a12

a11

b11

b12

5

Figure 19 Typical connection of transformer backup protection

Chapter 9 Appendix

211

C. Application for sensitive earth fault protection

A

B

C

* * *

b05

a05

*

I

IA

IB

IC

UB

UA

UC

IN

UN

Protection IED

a01

a02

a03

a04

b01

b02

b03

b04

a12

a11

b11

b12

5

Figure 20 Typical connection of sensitive earth fault protection

csc-121 breaker protection ied engineering and … break… · for the installation, commissioning,...

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