Template Manual Aeg Sd36 Enu Tu2.11 v1.002

8/10/2019 Template Manual Aeg Sd36 Enu Tu2.11 v1.002

1/15

OMICRON PTL SD36 Distance Protection Test Template User Manual

OMICRON PTL

Protection Test Template PTT

Distance Protection

SD 36

User Manual

V1.002

OMICRONelectronics GmbH 1/15


2/15


Contents

1 General Information................................................................................................................................. 3

2 Quick Start Information........................................................................................................................... 4

3 Using the Template.................................................................................................................................. 53.1 Test Object .......................................................................................................................................... 53.2 Hardware Configuration ...................................................................................................................... 5

4 Required Test Modules/SW Version/Hardware..................................................................................... 7

5 Functional Range..................................................................................................................................... 8

6 Not Supported Functions........................................................................................................................ 8

7 OMICRON Test Strategy.......................................................................................................................... 8

8 Template Structure .................................................................................................................................. 9

8.1 Wiring Test .......................................................................................................................................... 9

8.2 Initial Test ............................................................................................................................................ 9

8.3 Distance Starting Overcurrent ........................................................................................................... 108.4 Directional Test.................................................................................................................................. 108.5 Distance Zone Trip Times (Zone 1, Zone 2, Zone 3, Zone 4 and Zone 5) ....................................... 118.6 Distance Reach Zone (Zone 1, Zone 2, Zone 3, Zone 4 and Zone 5).............................................. 138.7 Distance Zone Trip Times (Extended Zone ZE1).............................................................................. 148.8 Distance Reach Zone (Extended Zone ZE1) .................................................................................... 158.9 Trip Time with Circuit Breaker Contacts............................................................................................ 15



3/15


4/15


2 Quick Start Information

To test with the SD36 distance protection template:1. Double-click the file SD36.occ to start the template-based procedure.

2. Open the global test object.3. Load (import) the latest XRIO converter version for the SD36 relay.

4. Enter your relay and power system settings, and than click OK.

Figure 1: Relay settings in the XRIO converter

5. Open the Hardware Configuration.6. Enter all necessary information for:

General

Analog Outputs

Binary / Analog Inputs

Binary Outputs

DC Analog Inputs

7. Click OK.8. Follow the wiring instructions.9. Start testing.10. Evaluate and archive the results.



5/15


3 Using the Template

The SD36 distance protection template is separated into three object groups: test object, hardwareconfiguration and the list of OMICRON test modules used for testing the relay's protection functions. The

template can be used for testing the following protection functions: Distance protection function (21)

CB auxiliary contacts

3.1 Test Object

The test object already contains the SD36 XRIO converter which includes all setting parameters of themodeled SD36 protection functions. The settings parameters are built as an image of the parameter modesystem 06-19. For more information, see the AEG SD36 XRIO Converter User Manual.

3.2 Hardware Configuration

The hardware configuration offers different configuration options for voltage and current outputs. Fortesting the SD36 relay with theSD36 distance template, the standard configuration shown in the followingfigure is required.

Figure 2: Configuration of the voltage and current outputs

Note:If higher currents are needed for testing (e.g. relays with Inom = 5 A), the current outputconfiguration can be adapted with the OMICRON CMA 165 to e.g. 3 x 25 A).



6/15


In the Analog Outputs dialog box, the voltage and current outputs have to be routed to the namevariables. Figure 3 illustrates the Analog Outputconfiguration.

Figure 3: Analog Outputconfiguration

In the Binary / Analog Inputsdialog box, configure the signals as follows:

1 trigger signal set to Trip

2 impedance starting pick-up signals set to Gen. Start and Start LN

1 signal for the circuit breaker auxiliary contacts set to CB aux

Note: The binary inputs are preset to potential free. Change these predefined settings to the values

needed at the test site.

The following figure shows the Binary / Analog Inputconfiguration.

Figure 4: Binary / Analogue Inputsconfiguration



7/15


Route the signals configured in the Binary / Analog Inputsdialog box to the following binary inputs:

Trip to binary input 1

Gen. Startto binary input 5

Start LNto binary input 6

CB aux.to binary input 7

If the Startsignal is not used, the pick-up and drop-off signals of the distance protection function cannotbe tested.

Note:The circuit breaker auxiliary contact is required for the trip test with circuit breaker. If the circuitbreaker auxiliary contact cannot be connected to the binary inputs, the trip test with circuit breaker cannotbe performed.

Connection for SD36x

X1-01

X1-02

X1-03

X1-04

X1

-09

X1

-10

X1

-11

X1

-12

Trip

Gen.

Start

StartL-N

CB

aux.

Connection for SD36x

X1-01

X1-02

X1-03

X1-04

X1

-09

X1

-10

X1

-11

X1

-12

Trip

Gen.

Start

StartL-N

CB

aux.

Figure 5: Connection CMC 256-6 to Relay SD36

4 Required Test Modules/SW Version/Hardware

To use this template, you must have a valid test license for the OMICRON Test Universe 2.11 or higherand the following test modules:

Control Center

Quick CMC

Advanced Distance

Ramping

State Sequencer

There are no restrictions on the hardware. You can use a CMC56, CMC156 or a CMC256 for testing (Thedevelopment tests are performed with a CMC256-6).



8/15


5 Functional Range

The test modules are grouped according to the tested protection function. The SD36 distance protectiontest template includes OMICRON test modules for the following protection functions:

Pick-up and drop-off of the:

Distance protection starting overcurrent (21) Trip time:

Distance zones circle (21)

Reach: Distance zones circle (21)

Trip time with circuit breaker

The test modules are always activated.

Note:Test modules will only be unchecked after the test object or the hardware configuration has beenopened during a test.

6 Not Supported Functions

All standard SD36 protection functions are currently supported. If a SD36 relay with extra protectionfunctions is used, the SD36 distance protection test template can be extended by the user to allow testingthe protection functions currently not supported. It is possible to add any test modules to the existingtemplates. The additional test modules will not affect the template, but they will not be activated ordeactivated automatically.

7 OMICRON Test Strategy

The SD36 distance protection test template includes the pick-up and trip time value tests which areperformed in a standardized way. For the pick-up and drop-off value tests, the setting value is evaluated

by a ramp increasing the variable under test until the pick-up value is reached. The test of drop-off valuesis done in a similar way by decreasing the tested value until the drop-off value is reached.Trip times are tested by simulating a fault which exceeds the pick-up value and the specific tolerances.This results in a trip command of the tested protection function. The time between the simulation of thefault and the reception of the trip signal is measured and evaluated.

Note:Do not only rely on the automatic assessment of test points in the test modules but check theplausibility of all test results manually to achieve maximum reliability of the test results.



9/15


8 Template Structure

The structure of the SD36 distance protection test template is shown below.

Figure 6: SD36 distance protection test template

8.1 Wiring Test

The wiring test is used to check the connections between the CMC test set and the relay. Therefore theOMICRON QuickCMCtest module is used to inject asymmetrical voltage and current values. The firstphase of the voltages is set to 95%, the second phase to 105% and the third phase to 100% of thenominal value. The first phase of the currents is set to 95%, the second phase to 100% and the thirdphase to 105% of the nominal value. If all connections are correct, the same values can be read out of therelay and the test can be manually assessed.

8.2 Initial Test

The initial test is used to check the connections between the CMC test set and the relay. If all connectionsare correct, the test will pass, otherwise the test will fail. The OMICRONAdvanced Distance test moduleis used for the initial test. A three-phase fault is simulated with a shot to 50% of the line length which haveto be switched off by the relay.



10/15


8.3 Distance Starting Overcurrent

For testing the overcurrent pick-up and the drop-off value, the OMICRON Rampingtest module is used.This module allows testing the pick-up and drop-off of the overcurrent stage with the lowest pick-up value.There are three test modules, each covering the pick-up and drop-off of the overcurrent stage with thelowest pick-up value. The following fault types are tested:

Fault type A-N Fault type B-C

Fault type A-B-C

Figure 7: Distance starting overcurrent test module for the fault type A-B-C

For the fault type A-N and the fault type A-B-C the fault condition is simulated on the line length, seeFigure 7. Thereby the voltages keep their initial condition and the current(s) are simulated with thenegative line angle. For the Fault type B-C a second phase failure is simulated.

8.4 Directional Test

For testing the directional characteristic, the OMICRONAdvanced Distancetest module is used. Eachzone can be set to Forward, Reverseor Non-Directionalcharacteristic depending on the relay zonefunctionalities. To test the directional characteristic, it is sufficient to attest the difference between the

Forwardand Non-Directional, alternatively between the Reverseand Non-Directionalcharacteristics.For testing the Forwarddirection, enter one test shot on the right side of the forward left direction limit(inside the zone), and one test shot on the left side of the forward left directional limit (outside the zone)for Fault type A-N, B-C and A-B-C.

For testing of the Reverse direction, enter one test shot on the right side of the reverse left direction limit(inside the zone) and one test shot on the left side of the reverse direction limit (outside the zone) for theFault type A-N, B-C and A-B-C. Figure 8 shows the example for the circle zone characteristic.

Note: You can simulate and test the different fault types (A-N, B-C and A-B-C) using one test module, e.g.theAdvanced Distancetest module for the directional test.



11/15


Figure 8: Circle zone characteristic

8.5 Distance Zone Trip Times (Zone 1, Zone 2, Zone 3, Zone 4 and Zone 5)

For testing the zone trip times, the OMICRONAdvanced Distancetest module is used. This moduleallows testing the trip times of all active zones. There are three test modules for the circle zones. Thefollowing fault types are tested:

Fault type A-N

Fault type B-C

Fault type A-B-CThe zone trip time is tested by a test shot placed at 90% of each active zone and 110% of the outer zoneto check the trip time of the zones 4 and 5. These shots are set on the impedance line direction.



12/15


Figure 9: Zone trip times

Note:Possibly there are more test shots than necessary in the test modules. In this case, delete allunnecessary test points. The unnecessary test points can be identified by a very small impedance value zero or nearly zero (e.g. 8.333e-10 ), see Figure 10.

Figure 10: Unnecessary test points

Note:The test current of the test module is twice set to the maximum value - the nominal current and theSD36 relay parameter I>, as the case may be IE> for the ground error tests. If the test current is too high,the module cannot execute the test as shown in Figure 11. The tested and pink colored shot points areout of range. In this case, remove the link of the test current and set the ITest manually by entering a testcurrent higher than the necessary pick-up current in the pick-up program of the 21 Distance protection.



13/15


Figure 11: Test current to high

8.6 Distance Reach Zone (Zone 1, Zone 2, Zone 3, Zone 4 and Zone 5)

For testing the distance reach zone, the OMICRONAdvanced Distancemodule is used. This moduleallows testing the reach of all active zones. There are three test modules for testing the circle zones. Thetrip times of the following fault types are tested:

Fault type A-N

Fault type B-C

Fault type A-B-C

The distance reach zone is tested by test shots placed at 94% and 106% of each active zone. Theseshots are set on the on 90 and 0 lines for all forward directed zones, alternatively 180 and 270 for allreverse directed zones.



14/15


Figure 12: Reach zone

Note:Possibly there are more test shots than necessary in the test modules. In this case, delete all

unnecessary test points. The unnecessary test points can be identified by a very small impedance zeroor nearly zero (e.g. 8.333e-10 ), see Figure 10.


8.7 Distance Zone Trip Times (Extended Zone ZE1)

For testing the zone trip times of the extended zone, the OMICRONAdvanced Distancetest module isused. There is one test module for the circle zone. The trip times of the following fault types are tested:

Fault type A-N

Fault type B-C

Fault type A-B-C

The zone trip time is tested by a test shot placed at 90% of the zone ZE1. These shots are set on theimpedance line direction.

Note:Possibly there are more test shots than necessary in the test modules. In this case, delete allunnecessary test points. The unnecessary test points can be identified by a very small impedance nearlyzero (e.g. 8.333e-10 ).

Note:This test can only be executed if the zone ZE1 can be activated.



15/15


8.8 Distance Reach Zone (Extended Zone ZE1)

For testing the distance reach of the extended zone, the OMICRONAdvanced Distancetest module isused. There is one test module for the circle zone. The trip times of the following fault types are tested:

Fault type A-N

Fault type B-C

Fault type A-B-C

The distance reach zone is tested by test shots placed at 94% and 106% of the zone ZE1. These shotsare set on the 90 and 0 lines for the forward direction, alternatively to 180 and 270 for the reversedirection.

Note:Possibly there are more test shots than necessary in the test modules. In this case, delete allunnecessary test points. The unnecessary test points can be identified by a very small impedance zeroor nearly zero (e.g. 8.333e-10 ), see Figure 10.

Note:This test can only be executed if the zone ZE1 can be activated.Example: For the activation of the zone ZE1 you can set the relay parameter "ZE1/Z1"under Mode 12>1.


8.9 Trip Time with Circuit Breaker Contacts

For testing the trip time with circuit breaker contacts test, the OMICRON State Sequencertest module isused. This test is divided into three sequencer states: pre-fault, fault and post-fault. The fault is a three-phase fault in the direction of the first distance zone. The time between the trip command and the timewhen the circuit breaker is opened is evaluated.

Figure 13: Reach Circuit Breaker Test


Date post:	02-Jun-2018
Category:	Documents
Upload:	anilv0972
View:	243 times
Download:	3 times

Template Manual Aeg Sd36 Enu Tu2.11 v1.002

Documents