cp rc user manual

8/19/2019 CP RC User Manual

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CP RCUser Manual


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CP RC User Manual

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Manual Version: CPRC.AE.1

© OMICRON electronics GmbH 2011. All rights reserved.This manual is a publication of OMICRON electronics GmbH.

All rights including translation reserved. Reproduction of any kind, for example, photocopying,

microfilming, optical character recognition and/or storage in electronic data processing systems,

requires the explicit consent of OMICRON electronics GmbH. Reprinting, wholly or in part, is not

permitted.

The product information, specifications, and technical data embodied in this manual represent the

technical status at the time of writing and are subject to change without prior notice.

We have done our best to ensure that the information given in this manual is useful, accurate and

entirely reliable. However, OMICRON electronics GmbH does not assume responsibility for any

inaccuracies which may be present.

The user is responsible for every application that makes use of an OMICRON product.

OMICRON electronics GmbH translates this manual from the source language English into a number

of other languages. Any translation of this manual is done for local requirements, and in the event of a

dispute between the English and a non-English version, the English version of this manual shall govern.


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Contents

Contents

Using This Manual . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5

Safety Standards . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5

Conventions and Symbols Used . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6

Related Documents . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6

Safety Rules . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7Operating the Measurement Setup . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7

Orderly Measures . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8

Disclaimer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8

1 Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .9

1.1 Designated Use . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9

1.2 CP TR8

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 101.3 CP CR4 and CP CR6 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11

1.4 CP RC Accessories . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12

2 Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .15

2.1 General . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15

2.2 Compensation Ranges . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17

2.3 Measurement Setups. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18

2.3.1 Setup Version A: 8 mH . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18

2.3.2 Setup Version B: 4.44 mH. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20

2.3.3 Setup Version C: 3.43 mH. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22

2.3.4 Setup Version D: 2.67 mH. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24

2.3.5 Setup Version E: 1.85 mH. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26

2.3.6 Optional Setup Version F: 1.60 mH. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28

2.3.7 Optional Setup Version G: 1.26 mH . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30

2.4 Test Card . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32

2.4.1 Test Settings for HV Resonance Test System . . . . . . . . . . . . . . . . . . . . . . . . . . 33

3 Measurement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .39

3.1 Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39

3.2 Preparation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40

3.3 Measurement of the Leakage Reactance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41

3.3.1 Theoretical Background to Calibration of Voltage Measurement . . . . . . . . . . . . 42

3.4 Finding the Setup for the High-Voltage Test . . . . . . . . . . . . . . . . . . . . . . . . . . . 44


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3.4.1 Preparation of the Measurement. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 443.4.2 Determination of the Capacitance of the Test Setup. . . . . . . . . . . . . . . . . . . . . . 44

3.4.3 Select the Setup . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 46

3.5 Performing the HV Test Without Second VT. . . . . . . . . . . . . . . . . . . . . . . . . . . 48

3.5.1 Test Settings for the High-Voltage Test . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 48

3.5.2 Determine the Resonance Frequency. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 49

3.5.3 Conducting the Measurement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 51

3.6 Performing the HV Test With Second VT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 53

3.6.1 Test Settings for the High-Voltage Test . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 53

3.6.2 Determine the Resonance Frequency. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 54

3.6.3 Conducting the Measurement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 55

4 Technical Data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .57

4.1 Specifications. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 57

4.2 Mechanical Data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 58

4.3 Environmental Conditions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 58

4.4 CE Conformity and Safety Standards . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 59

4.5 Cleaning. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 59

Contact Information / Technical Support . . . . . . . . . . . . . . . . . . . . . . . . . . 61

Index . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 63


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Using This Manual

Using This ManualThis User Manual provides information on how to use the CP RC Test Set

safely, properly and efficiently. The CP RC User Manual contains important

safety instructions for working with the CP TR8 and CP CR4/CP CR6 , and gets

you familiar with operating the CP RC Test Set. Following the instructions in this

User Manual will help you to prevent danger, repair costs and possible down

time due to incorrect operation.

The CP RC User Manual always has to be available at the site where the CP RC

Test Set is used. It must be read and observed by all users of the CP RC Test

Set.

Reading the CP RC User Manual alone does not release you from the duty of

complying with all national and international safety regulations relevant to

working with the CPC 100 , and CP RC . The regulation EN 50191 "Erection and

Operation of Electrical Test Equipment" as well as all the applicable regulations

for accident prevention in the country and at the site of operation has to be

fulfilled.

Safety Standards

Working on high-voltage power equipment can be extremely dangerous.

Measuring using the CP RC must be carried out only by qualified, skilled, and

authorized personnel. Before starting work, clearly establish the responsibilities.

Personnel receiving training, instructions, directions, or education on the CP RC

must be under constant supervision of an experienced operator while working

on the high-voltage power equipment.

Measuring with the CP RC must comply with the relevant national and

international safety standards:

• EN 50191 (VDE 0104) "Erection and Operation of Electrical Test Equipment"

• EN 50110-1 (VDE 0105 Part 100) "Operation of Electrical Installations"

• IEEE 510 "IEEE Recommended Practices for Safety in High-Voltage and

High-Power Testing"

Moreover, observe all applicable regulations for accident prevention in the

country and at the site of operation.


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Conventions and Symbols UsedIn this manual, the following symbols indicate paragraphs with special safety-

relevant meaning:

Related Documents

The following documents complete the information covered in the CP RC UserManual:

Symbol Description

Caution: Equipment damage or loss of data possible

Warning: Personal injury or death of the operating staff or

severe damage to objects possible

Title Description

CPC 100 User Manual Contains information on how to use

the CPC 100 test system and

relevant safety instructions.

CPC 100 Reference Manual Contains detailed hardware and

software information on the CPC 100 including relevant safety instructions.


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Safety Rules

Safety RulesBefore operating the CP RC , please carefully read the following safety

instructions. It is not recommended to use the CP RC without understanding the

information in this manual. The CP RC should only be operated by trained

personnel.

Maintenance and repair is only permitted by qualified experts either at

OMICRON electronics repair centers.

Operating the Measurement Setup

Application of high-voltage tests is only allowed for operators who are

particularly skilled and experienced in high-voltage testing! The operator is

responsible for the safety requirements during the whole test. Before performing

tests using high voltage, please read the following:

Do not perform any test without having carefully read the CPC 100 and CP RCuser manuals!

• Make sure to position the test equipment on dry, solid ground!

• Pay attention to the national and international standards for the safe

operation of high-voltage test equipment (EN 50191, IEEE 510).

• Never touch any parts without a visible ground connection!

• Opening the housings of the CP RC Test Set invalidates all warranty claims.

• Properly ground the CP RC and the CPC 100 by connecting them to the

common equipotential ground. Use ground connection cables of at least

6 mm² cross-section. Never operate the CP RC without solid grounding.

FOR YOUR OWN SAFETY

Always follow the five safety rules:

1. Insulate

2. Secure to prevent reconnecting

3. Check isolation

4. Ground and short-circuit

5. Cover or shield neighboring live parts


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Orderly MeasuresThe CP RC User Manual or alternatively the e-book in PDF format has always

to be available on site where the CP RC is being used. It must be read and

observed by all users of the CP RC .

The CP RC may be used only as described in 2 "Operation" on page 15. Any

other use is not in accordance with the regulations. The manufacturer and/or

distributor is not liable for damage resulting from improper usage. The user

alone assumes all responsibility and risk.

Following the instructions provided in this User Manual is also considered part

of being in accordance with the regulations.

Disclaimer

If the equipment is used in a manner not specified by the manufacturer, the

protection provided by the equipment may be impaired.


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Introduction

1 Introduction

1.1 Designated Use

The CP RC is designated for performing high-voltage tests on GIS. The testing

system consists of the CP TR8 providing galvanic separation, the CP CR4 and

CP CR6 to compensate the reactive power, and the power voltage transformer

(VT). The power VT is part of the GIS and not provided by OMICRONelectronics. It replaces the standard VT inside the GIS and is designed to

withstand the needed test current.

The busbars, the breakers, the disconnectors, the CTs and VTs inside a GIS

represent capacitive load on the high-voltage side of the voltage transformerwhich is transformed to the low-voltage side by the square of the turns ratio.

Without compensating this reactive power, the CPC 100 is not able to deliver the

needed total power. The CP RC and the capacitive load build a parallel

resonance circuit. To get the exact resonance point, the test frequency is tuned

to resonance.

Caution: It has to be guaranteed that the windings of the voltage transformer

can withstand the needed test current.


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1.2 CP TR8 The CP TR8 provides galvanic separation of the booster output of the CPC 100

for resonance circuiting with the GIS. With a ratio of 1:1 and an inductivity of

8 mH, capacitive loads can be compensated.

Figure 1-1 Functional components of the CP TR8

Output A

1 + 2

(internally connected)

Output B

1 + 2


Equipotential ground

terminal

Measurement

connection A

(internally connected

to Output A)

Measurement

connection B


to Output B)

BOOSTER INPUT


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Introduction

1.3 CP CR4 and CP CR6 The CP CR4 and CP CR6 are designed to compensate the reactive power

which is needed at the low-voltage winding of the power VT. Both have a fix air

gap.

Figure 1-2 Functional components of the CP CR4 and CP CR6

Connection A

1 + 2


Connection B

1 + 2


Equipotential ground

terminal

Measurement

connection A


to Connection A)

Measurement

connection B


to Connection B)


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1.4 CP RC AccessoriesThe following accessories are delivered with the CP RC .

Accessories Description

2x Y-Cable, red Connection from the

CP TR8 ’s Output A to

the CP CR4/CP CR6 ’s

Connection A and thetransformer’s a terminal

2x Y-Cable, black Connection from the

CP TR8 ’s Output B to

the CP CR4/CP CR6 ’s

Connection B and the

transformer’s n terminal

1x I-Cable, red/black Connection between the

CP CR4’s Connection A

and the CP CR6 ’s

Connection B

3x Grounding cable Connection from the

CP TR8 ’s,

CP CR4’s,and CP CR6 ’s

equipotential ground

terminals to the

substation ground

1x Booster cable

6 m/3x 1.5 mm2

Power connection from

the CPC 100 ’s EXT.

BOOSTER output to the

CP TR8 ’s BOOSTER

INPUT

1x KSO104 Current

transformer 1000/1 A,

1 VA, Kl. 0.1 ext. 120%(15 VA, Kl. 0.2)

Current transformer to

measure the current on

the secondary side of

the voltage transformer


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Introduction

2x Connector adapter,

yellow, 4 mm

Connection for the

current transformer

2x Transport case To transport the entire

equipment

Accessories Description


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Operation

2 OperationThis chapter provides a general description of the measurement setup.

Furthermore, it gives an overview of the compensation ranges for different

connection versions of the CP TR8 , CP CR6 and CP CR4, as well as an

instruction on how to set up. Moreover, the HV Resonance Test System test

card to perform the high-voltage measurement is described.

As already mentioned earlier in this manual, different connection versions are

possible and/or required, depending on the load. All possible connection

versions are described below.

2.1 General

Independent of the connection option used, the following measurement

connections have to be provided (see Figure 2-1 on page 16):

• For current measurement on the power VT’s input, connect the current

transformer delivered in the package.

• Press the Emergency Stop button on the CPC 100 front panel. Continue with

connecting only if the green warning light is on.

• Connect terminals k (S1) and l (S2) to the I AC input of the CPC 100 .• For voltage measurement, connect the a and n terminals of the power VT

(low-voltage side) to the V1 AC input on the CPC 100 . If this is not possible,

the Measurement connections A and B of the CP TR8 can be used instead.

Warning: Use only designated connection options to prevent a life risk!


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Figure 2-1 General measurement setup

• In all connection options, all elements of the setup have to be grounded using

the equipotential ground connection. For this purpose, use the grounding

cables delivered in the package.

• Connect the EXT. BOOSTER output of the CPC 100 to the BOOSTER

INPUT of the CP TR8 with the booster cable.

CP TR8 (8 mH)

P2

s2

VT

P1

s1

Warning: Do not connect a reactor in serial with the CP TR8 output.

Dangerous voltages can be generated!


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Operation

2.2 Compensation RangesTable 2-1 shows the possible compensation ranges. The indicated capacitances

refer to the low-voltage side of the VT. In order to calculate the maximum

capacitance on the high-voltage side, the ratio of the VT has to be considered.

Example: Ratio of the VT = 110 kV:100 V, C (HV side) = 1 nF:

C (LV side) = 1 nF x (110,000/100)2 = 1210 µF

Figure 2-2 Diagram of compensation ranges

Table 2-1 Table of compensation ranges

f [Hz] 90 100 110 120

L [mH] C [µF] C [µF] C [µF] C [µF]

Setup A 8.00 391 317 262 220

Setup B 4.44 704 570 471 396

Setup C 3.43 912 739 611 513

Setup D 2.67 1173 950 785 660Setup E 1.85 1694 1372 1134 953

Setup F 1.60 1954 1583 1308 1099

Setup G 1.26 2476 2005 1657 1393

Compensated Capacity

Frequency [Hz]

C a

p a c i t a c e L V

[ µ F ]


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2.3 Measurement Setups

2.3.1 Setup Version A: 8 mH

If only the CP TR8 is used for compensation, loads of up to 391 µF can be

compensated (at 90 Hz). This setup is also used to determine the load capacity.

Make sure to measure the current and voltage of the power VT on the low-

voltage side as shown in Figure 2-1 "General measurement setup" on page 16.

Figure 2-3 Connection diagram for a 8 mH-setup

To CPC 100

Booster

Output CP TR8

VTTo CPC 100

I AC/DC Input


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Operation

Figure 2-4 Setup for 8 mH

For this setup, provide the following connection:

• Connect the red Y-cable from the Outputs A1 and A2 of the CP TR8 to the

a terminal of the power VT.

• Connect the black Y-cable from the Outputs B1 and B2 of the CP TR8 to the

n terminal of the power VT.


transformer delivered in the package as shown in Figure 2-1 on page 16.

• Connect terminals k (S1) and l (S2) to the I AC input of the CPC 100 .

CP TR8


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2.3.2 Setup Version B: 4.44 mHIn this setup option, an inductivity of 4.44 mH is achieved by serial connection of

both compensation reactors CP CR4 and CP CR6 , and parallel connection of

the reactors to the CP TR8 . Thus, it is possible to compensate load

capacitances of up to 704 µF (at 90 Hz). Make sure to measure the current and

the voltage of the power VT on the low-voltage side as shown in

Figure 2-1 "General measurement setup" on page 16.

Figure 2-5 Connection diagram for a 4.44 mH-setup

CP TR8

VT

CP CR6

CP CR4

To CPC 100

Booster

Output

To CPC 100

I AC/DC Input


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Operation

Figure 2-6 Setup for 4.44 mH


• Connect the red Y-cable from Output A1 of theCP TR8

to the ConnectionA1 of the CP CR6 .

• Connect the black Y-cable from the Output B1 of the CP TR8 to the

Connection B1 of the CP CR4.

• Connect the short connection cable (red and black plug) from Connection

B2 of the CP CR6 to the Connection A1 of the CP CR4.

• Connect the open ends of the Y-cables to the a and n terminals of the power

VT.




CP TR8

CP CR6

CP CR4


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2.3.3 Setup Version C: 3.43 mHFor compensating a load capacitance of 740 µF, the CP CR6 is connected to the

CP TR8 in parallel. Thus, an inductivity of 3.43 mH is achieved. Make sure to

measure the current and voltage of the power VT on the low-voltage side as

shown in Figure 2-1 "General measurement setup" on page 16.


CP TR8

VT

CP CR6

To CPC 100

Booster

Output

To CPC 100

I AC/DC Input


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Operation



• Connect the red Y-cable from the Output A1 of the CP TR8 to the

Connection A1 of the CP CR6 .• Connect the black Y-cable from the Output B1 of the CP TR8 to the

Connection B1 of the CP CR6 .

• Finally, connect the open ends of the Y-cables to the a and n terminals of the

power VT.

• In order to reduce cable losses, the second pair of Y-cables can be used to

connect Connection A2 and Connection B2. In this case too, connect the

open ends of the Y-cables to the a and n terminals of the power VT.




CP TR8 CP CR6


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2.3.4 Setup Version D: 2.67 mH As in the setup version for 3.43 mH, a parallel connection between the CP TR8

and the compensation reactor is provided. However, in this setup the CP CR4 is

used instead of the CP CR6 . Thus, an inductivity of 950 µF is achieved at

100 Hz. Make sure to measure the current and voltage of the power VT on the

low-voltage side as shown in Figure 2-1 "General measurement setup" on

page 16.


CP TR8

VT

CP CR4

To CPC 100

Booster

Output

To CPC 100

I AC/DC Input


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Operation



• Connect the red Y-cable from the Output A1 of the CP TR8 to the

Connection A1 of the CP CR4.• Connect the black Y-cable from the Output B1 of the CP TR8 to the

Connection B1 of the CP CR4.

• Finally, connect the open ends of the Y-cables to the a and n terminals of the

power VT.




In order to reduce cable losses, the second pair of Y-cables can be used to

connect Connection A2 and Connection B2. In this case too, connect the open

ends of the Y-cables to the a and n terminals of the power VT.

CP TR8 CP CR4


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2.3.5 Setup Version E: 1.85 mHIn this setup version, a second compensation reactor is added to the parallel

connection from setup versions C (3.43 mH) and D (2.67 mH). Thus, a

maximum compensation of 1.4 mF can be achieved at 100 Hz. Make sure to

measure the current and voltage of the power VT on the low-voltage side as

shown in Figure 2-1 "General measurement setup" on page 16.


CP TR8

VT

CP CR6 CP CR4

To CPC 100

Booster

Output

To CPC 100

I AC/DC Input


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Operation


For the setup, provide the following connection:

• Connect the first red Y-cable from the Output A1 of the CP TR8 to the

Connection A1 of the CP CR6 .

• Connect the second red Y-cable from the Connection A2 of the CP CR6 to

the Connection A1 of the CP CR4.• Connect both open ends of the red Y-cables to the a terminal of the power

VT.

• Connect the first black Y-cable from the Output B2 of the CP TR8 to the

Connection B2 of the CP CR6 .

• Connect the second black Y-cable from the Connection B1 of the CP CR6

to the Connection B2 of the CP CR4.

• Connect both open ends of the black Y-cables to the n terminal of the power

VT.




CP TR8 CP CR6 CP CR4


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2.3.6 Optional Setup Version F: 1.60 mHSimilar to setup version E, a second compensation reactor is added to the

parallel connection. Thus, a maximum compensation of 1.6 mF can be achieved

at 100 Hz. Make sure to measure the current and voltage of the power VT on the

low-voltage side as shown in Figure 2-1 "General measurement setup" on

page 16.


CP TR8

VT

CP CR4 CP CR4

To CPC 100

Booster

Output

To CPC 100

I AC/DC Input


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29

Operation




Connection A1 of the first CP CR4.

• Connect the second red Y-cable from the Connection A2 of the first CP CR4

to the Connection A1 of the second CP CR4.• Connect both open ends of the red Y-cables to the a terminal of the power

VT.

• Connect the first black Y-cable from the Output B2 of the CP TR8 to the

Connection B2 of the first CP CR4.

• Connect the second black Y-cable from the Connection B1 of the first

CP CR4 to the Connection B2 of the second CP CR4.


VT.




CP TR8 CP CR4 CP CR4

CP RC U M l


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2.3.7 Optional Setup Version G: 1.26 mH

In this setup version, a third compensation reactor is added to the parallel

connection from setup versions C (3.43 mH) and D (2.67 mH). For this setup, an

additional CP CR4 unit is required. Thus, a maximum compensation of 2.0 mF

can be achieved at 100 Hz. Make sure to measure the current and voltage of the

power VT on the low-voltage side as shown in Figure 2-1 "General

measurement setup" on page 16.


CP TR8

VT

CP CR6 CP CR4

CP CR4

To CPC 100

Booster

Output

To CPC 100

I AC/DC Input

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Operation




Connection A1 of the CP CR6 .

• Connect the second red Y-cable from the Connection A1 of the first CP CR4

to the Connection A1 of the second CP CR4.

• Connect both open ends of the red Y-cables to the a terminal of the power

VT.

• Connect the first black Y-cable from the Output B2 of theCP TR8

to theConnection B2 of the CP CR6 .

• Connect the second black Y-cable from the Connection B2 of the first

CP CR4 to the Connection B2 of the second CP CR4.

CP TR8 CP CR6 CP CR4CP CR4

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VT.




2.4 Test Card

The HV Resonance Test System test card is used for generic high-voltagetests with resonance circuits in combination with the CP TR8 as well as CP CR4

and CP CR6 .

To select a test card, press Insert Card in the Test Card View.

Use the context-dependent Up/Down menu keys to the right, or the handwheel,

to browse through the structure. On Others, press Enter .

Alternatively, press the accelerator key to open the Insert a new test card

dialog box.For Others, the following test cards are available:

Figure 2-17 Inserting test cards

Highlight the HV Resonance Test System test card either by navigating with

the handwheel or by using the context-dependent Up/Down menu keys, and

then press Enter .

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Operation

2.4.1 Test Settings for HV Resonance Test System

The output voltage is displayed very clearly on the main page of the test card.

The frequency has to be set manually or by pressing Search f0…. The location

indicator shows the controlled input channel. The location indicator is placed

either above V out (External Booster) or above VT (V1 AC).

Figure 2-18 HV Resonance Test System test card

Test settings

Controlled input channel

Set frequency value

Set output voltage

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Navigate to the parameter fields and enter the values according to your test

requirements:

To set the test cycle:

Figure 2-19 Test cycle settings

Ratio estim.: Estimated VT ratio

Search f0...: Automatic search of resonance frequency. Pressing this

key will open the following dialog:

Test cycle: Define/set automatic test cycle

VT: Voltage as defined in the settings page.

CT: Current as defined in the settings page.

V out: Output voltage at CPC 100 Ext. Booster output

I out: Output current at CPC 100 Ext. Booster output

°: The ° shows the phase angle of I out relative to V out.

Time: Time elapsed for this measurement

Indicates the voltage slope between

the states

State definition

Total time of test cycle

Press to add state

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Pressing the Settings menu key opens the settings page.

Figure 2-20 Settings page of the HV Resonance Test System test card

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CT ratio: Nominal CT ratio according to CT nameplate

VT ratio nom.: Nominal VT ratio according to VT nameplate

Estimate HV@f0=n/a: Select if no measurement VT is available. Selecting

this check box will show a different circuit diagram

on the test card:

X sc@100Hz: Short-circuit impedance of the power VT at 100 Hz

VT ratio w/ loss=: Estimated power VT ratio with losses (refer also to

section 3.5.3 on page 51)

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After determining the resonance frequency, the settings page will show

additional information (marked in red):

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Measurement


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3 Measurement3.1 Overview

The entire measurement procedure is outlined below:

Figure 3-1 Measurement overview

Prepare test setup

• Short-circuit all low-voltage terminals

Measure the leakage reactance of the power VT

(optional)

• Provide the measurement setup and short-circuit the

high-voltage side of the VT

Find the setup for the HV test

• Use Setup A

• Determine the resonance frequency

• Select setup

Perform the HV test

With second VT

• Define test settings


• Conduct the measurement

Without second VT

• Define test settings


• Conduct the measurement


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Measurement


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3.3 Measurement of the Leakage Reactance

This procedure is only required, if no direct measurement on the high-voltage

side is possible, for example, due to a second VT or voltage divider.

• Provide the measurement setup as shown in Figure 3-3 "Example for

measuring the leakage reactance" and make sure to short-circuit the high-

voltage side of the voltage transformer.

Figure 3-3 Example for measuring the leakage reactance

• Insert a Quick test card and set the output range to 6A AC, the output

frequency to 100 Hz, and the output current to 5.00 A.

• Set the 1st measurement channel to V1 AC, the 2nd measurement channel to

I AC, and the calculate value to R,X.

• Press the I/O (test start/stop) push-button to start the test.

• Press Keep Result and the I/O (test start/stop) push-button to stop the test.

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Figure 3-4 Measurement results

• The leakage reactance of the VT at 100 Hz is displayed in the last column of

the results line (for example, Xsc

= 306 mΩ).

3.3.1 Theoretical Background to Calibration of Voltage

Measurement

The load on the primary (high-voltage) side of the voltage transformer is almost

capacitive.

Simplified electrical equivalent circuit of the voltage transformer under load:

Figure 3-5 Electrical equivalent circuit of the voltage transformer under

load

The voltage on the secondary (low-voltage) side and the primary (high-voltage)

side have the following correlation:

Is

∆U

XscUs U' p C'

Us U U' p+∆ Is jXsc U' p+⋅= =

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where

The output voltage U'p is larger than the input voltage Us. This is caused by the

losses of the leakage reactance.

Figure 3-6 Influence of the capacitive load

If the voltage Us is used for determining the voltage Up on the high-voltage side,

∆U has to be considered. To calculate ∆U, the current Is and the leakage

reactance Xsc have to be known.

Us = input voltage (voltage of the low-voltage side of the VT)

Is = input current

U'p = voltage on the high-voltage side of the VT referred to the

secondary low-voltage side

∆U = voltage drop due to capacitive load

Xsc = leakage reactance of the VT

Is

∆UU' p

Us

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3.4 Finding the Setup for the High-Voltage Test

3.4.1 Preparation of the Measurement

• Prepare the measurement by using Setup A (see section 2.3 on page 18):

Figure 3-7 Test circuit

This measurement setup is used to determine the total capacitance of the test

setup. Once the capacity is known, the correct measurement setup can be

selected to perform the high-voltage test.

3.4.2 Determination of the Capacitance of the Test Setup

• Insert a new HV Resonance Test System test card and select Settings.

• Set the CT ratio and VT ratio nom.:

• Set a ratio of 1000:1 for the CT (transformer in accessories package)

• Set the ratio for the VT according to the VT nameplate

Figure 3-8 Settings on the HV Resonance Test System test card

CP TR8 (8 mH)

P2 P1

s2 s1

VT

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Determine the Resonance Frequency (only CP TR8 ) :

• Change to the main page by pressing the Main Page key.

• Set the output voltage to a reasonably low voltage, for example, 10 kV.

• Search the resonance frequency manually or by pressing the Search f0…

button.


• The determined frequency is used to select the test setup.

Figure 3-9 Resonance frequency

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3.4.3 Select the Setup

Select the total capacitance:

• Use your determined frequency and choose the correct measurement setup

for the high-voltage test using the diagram below and Table 2-1 on page 17.

Figure 3-10 Resonance diagram

Table 3-1 Setups

Color Setup Description Inductance

Blue Setup A CP TR8 (8 mH) alone 8.00 mH

Green Setup B CP TR8 (8 mH) II (CP CR6

(6 mH) +CP CR4

(4 mH))

4.44 mH

Red Setup C CP TR8 (8 mH) II CP CR6

(6 mH)

3.34 mH

C a p

a c i t a n c e L V .

[ µ F ]

Frequency [Hz]

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• Build the measurement circuit with the measurement setup selected (see

2.3 "Measurement Setups" on page 18).

Pink Setup D CP TR8 (8 mH) II CP CR4

(4 mH)

2.67 mH

Orange Setup E CP TR8 (8 mH) II CP CR6

(6 mH) II CP CR4 (4 mH)

1.85 mH

Light Blue Setup F CP TR8 (8 mH) II CP CR4

(4 mH) II CP CR4 (4 mH)

1.60 mH

Purple Setup G CP TR8 (8 mH) II CP CR6 (6 mH) II CP CR4 (4 mH) II

CP CR4 (4 mH)

1.26 mH

Table 3-1 Setups

Color Setup Description Inductance

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3.5 Performing the HV Test Without Second VT

If the power VT is used for the high-voltage measurement, it is required to adjust

the ratio as shown in section 3.3.1 "Theoretical Background to Calibration of

Voltage Measurement" on page 42.

3.5.1 Test Settings for the High-Voltage Test




• Set the ratio for the VT according to the VT nameplate

• Select Estimate HV@f0 and enter the short-circuit impedance of the power

VT at 100 Hz (X sc@100Hz).

Figure 3-11 Settings on the HV Resonance Test System test card


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With the resonance frequency and I0 and V0 at this frequency, the leakage

reactance is calculated and thus the voltage drop due to capacitive load.

• Make sure that Estimate HV@f0=n/a was selected and the short-circuit

impedance at 100 Hz for the power VT (X sc@100Hz) was entered.

• The settings page shows the resonance frequency f0, as well as I0 and V0

at resonance frequency (marked in red).

• With these values the VT ratio w/ loss is determined.

Figure 3-13 Resonance frequency, I0 and V0

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3.5.3 Conducting the Measurement

Use the HV Resonance Test System test card as prepared in sections

3.5.1 "Test Settings for the High-Voltage Test" on page 48 and 3.5.2 "Determine

the Resonance Frequency" on page 49.

Performing the high-voltage test with automatic test cycle:

• Select Test cycle if you would like to run the test in defined states. For this

purpose, use the test settings as described in 2.4.1 "Test Settings for HV

Resonance Test System" on page 33.


Warning: Do not leave the test setup unattended!

Warning: Observe the maximum operating hours as listed in

4.1 "Specifications" on page 57 and the maximum operating hours of the VT

according to nameplate data!

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• Press Back to Top to open the main page.


• The test stops automatically after completing the test cycle.

• The results will be shown in the results table:

Figure 3-15 Measurement results with automatic test cycle

Performing the high-voltage test with manual test cycle:


• Increase the output voltage of the CPC 100 to reach your test voltage.

• Press Keep Result for each test voltage level.

• Press the I/O (test start/stop) push-button to stop the test.


Figure 3-16 Measurement results with manual test cycle

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3.6 Performing the HV Test With Second VT

If a direct measurement on the high-voltage side is possible, for example, due

to a second VT or voltage divider, proceed as described below.

3.6.1 Test Settings for the High-Voltage Test




• Set the ratio for the VT according to the second VT or voltage divider

nameplate

• Connect the low-voltage clamps of the second VT or voltage divider to the

V1AC input of the CPC 100 .

Figure 3-17 Settings page with second VT in circuit diagram

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3.6.2 Determine the Resonance Frequency

• Change to the main page by pressing the Main Page key.

• Set the output voltage to a reasonably low voltage, for example, 10 kV.

• Search the resonance frequency by pressing the Search f0… button.


• The determined frequency is used for the high-voltage test.

Figure 3-18 Determined resonance frequency

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3.6.3 Conducting the Measurement

• Use the HV Resonance Test System test card as prepared in sections

3.5.1 "Test Settings for the High-Voltage Test" on page 48 and

3.5.2 "Determine the Resonance Frequency" on page 49.

Performing the high-voltage test with automatic test cycle:

• Select Test cycle if you would like to run the test in defined states. For this

purpose, use the test settings as described in 2.4.1 "Test Settings for HV

Resonance Test System" on page 33.


Warning: Do not leave the test setup unattended!

Warning: Observe the maximum operating hours as listed in

4.1 "Specifications" on page 57 and the maximum operating hours of the VT

according to nameplate data!

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• Press Back to Top to open the main page.


• The test stops automatically after completing the test cycle.


Figure 3-20 Measurement results with automatic test cycle

Performing the high-voltage test with manual test cycle:


• Increase the output voltage of the CPC 100 to reach your test voltage.

• Press Keep Result for each test voltage level.

• Press the I/O (test start/stop) push-button to stop the test.


Figure 3-21 Measurement results with manual test cycle

Technical Data

4 T h i l D


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4 Technical Data

This section lists the CP TR8 & CP CR4/6 specifications, requirements, and

standard compliance.

4.1 Specifications

Table 4-1 CP TR8 & CP CR4/6 Specifications

Characteristic Rating

Isolation transformer CP TR8 (8 mH)

Uout 220 V

Iout 60 A (10 min on, 120 min off)

Ssec 13.2 kVAr (10 min on, 120 min off)

f 90 - 120 Hz

Insulation class F

Compensation Reactor CP CR6 (6 mH)

Uout 220 V


Ssec 33 kVAr (10 min on, 120 min off)

f 90 - 120 Hz

Insulation class F

Compensation Reactor CP CR4 (4 mH)

Uout 220 V


Ssec 33 kVAr (10 min on, 120 min off)

f 90 - 120 Hz

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4.2 Mechanical Data

4.3 Environmental Conditions

Table 4-2 Mechanical Data of CP TR8 & CP CR4/CP CR6


Dimensions (w × h × d) - without handle 262 mm x 225.5 mm x 222 mm

Dimensions (w x h x d) - with handle 262 mm x 277.5 mm x 222 mm

Weight CP TR8 19 kgWeight CP CR4 and CP CR6 20.5 kg

Table 4-3 Environmental Conditions


Operating temperature –10…+55 ºC/14…131 ºF

Transport & storage temperature –20…+70 ºC/–4…158 ºF

Relative humidity 5…95%, non-condensing

Protection IP20

Technical Data

4 4 CE Conformity and Safety Standards


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4.4 CE Conformity and Safety Standards

4.5 Cleaning

To clean the CP TR8 , CP CR4 and CP CR6 use a cloth dampened with

isopropanol alcohol or water.

Table 4-4 CE Conformity and Safety Standards

CE Conformity

The product adheres to the specifications of the guidelines of the Council of

the European Community for meeting the requirements of the member states

regarding the low-voltage Directive 2006/95/EC.

Certified Safety Standards

Europe EN 61010-1 (partly)

International IEC 61010-1(partly)

USA UL 61010-1 (partly)

Suitable for usage according to IEEE 510, EN 50191 (VDE 0104),

EN 50110-1 (VDE 0105 Part 100)

Warning: Prior to cleaning, always disconnect the CP TR8 , CP CR4 and

CP CR6 .

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Contact Information / Technical Support



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Americas

OMICRON electronics Corp. USA

12 Greenway Plaza, Suite 1510

Houston, TX 77046, USA

Phone: +1 713 830-4660

1 800-OMICRONFax: +1 713 830-4661

[email protected]

www.omicronusa.com

Asia – Pacific

OMICRON electronics Asia Ltd.

Suite 2006, 20/F, Tower 2

The Gateway, Harbour City

Kowloon, Hong Kong S.A.R.

Phone: +852 3767 5500

Fax: +852 3767 5400

[email protected]

www.omicron.at

Europe, Middle East, Africa

OMICRON electronics GmbH

Oberes Ried 1

A-6833 Klaus, Austria

Phone: +43 5523 507-333

Fax: +43 5523 507-999

[email protected]

www.omicron.at

For addresses of OMICRON electronics offices with customer service centers,

regional sales offices or offices for training, consulting and commissioning

please visit our Web site.

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Index

Index G


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Index

Aaccelerator key 32

BBOOSTER

INPUT 16booster

external 16

Ccable

loss 23, 25capacitive

load 9connectionparallel 20, 24, 26, 28, 30serial 16, 20versions 15

contact information 61

Eearth

connection 7EN 50110-1 59EN 50191 5, 59EN 61010-1 59EN 50110-1 5equipotential

ground 7EXT. BOOSTER 16

Ffrequency

test frequency 9

Gground

grounding 7

Hhandwheel 32hotline 61HV Resonance Test System 32

IIEC 61010-1 59IEEE 510 5, 59inductivity 20Insert a new test card 32Insert Card 32IP20 58

Lload

capacitive 9loss

cable loss 23, 25

Mmeasurement

connections 15overview 39procedure 39

Pparallel

connection 20, 24, 26, 28, 30

Rresonance

circuit 9

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Ssafety rules 7serial

connection 16, 20Settings page 35setup

1.26 mH 301.60 mH 281.85 mH 262.67 mH 24

3.43 mH 224.44 mH 208 mH 18

support 61

Ttechnical support 61terminal 7

Test Card View 32test frequency 9turns ratio 9

UUL 61010-1 59Up/Down menu keys 32

VVDE 0104 5, 59VDE 0105 Part 100 59VDE 0105 Part 100 5