ABB Relion 670 Series Commissioning Manual page 200

Section 11
Testing functionality by secondary injection
4. Make sure that the WARNINGx and ALARMx signals remains low.
5. Supply three-phase currents slightly more than the rated value to the IED and take note of hot
spot temperature (HPTMPMAX).
Observe the maximum permitted overloading of the current circuits in the IED.
6. Check the time until the warning limit has reached WrnHPTmpLev1 level during injection.
Monitor the signal WARNING1 until it appears on the corresponding binary output.
7. Compare the measured temperature (HPTMPMAX) with WrnHPTmpLev1 setting.
8. check the time until the warning limit has reached WrnHPTmpLev2 level during injection.
Monitor the signal WARNING2 until it appears on the corresponding binary output.
9. Compare the measured temperature (HPTMPMAX) with WrnHPTmpLev2 setting.
10. Wait for a time corresponding to tDelayToAlarm1 from the appearance of WARNING1 signal.
Make sure that the ALARM1 signal appears.
11. Note the time taken for the appearance of ALARM1 signal from the appearance of WARNING1
signal, and compare it with set value (tDelayToAlarm1).
12. Wait for a time corresponding to tDelayToAlarm2 from the appearance of WARNING2 signal,
and make sure that the ALARM2 signal appears.
13. Note the time taken for the appearance of ALARM2 signal from the appearance of WARNING2
signal, and compare it with set value (tDelayToAlarm2).
14. Activate the BLKWRN binary input. The WARNING1 and WARNING2 signals should disappear.
15. Activate the BLKALM binary input. The ALARM1 and ALARM2 signals should disappear.
16. Reset the BLKWRN and BLKALM binary inputs. Once again warning and alarm signals should
appear.
17. Reduce the three-phase currents suddenly to value lower than the rated current and take note
of hot spot temperature.
18. Check the warnings reset limit (HystAbsHPT). Monitor the WARNING1 and WARNING2 signals
until they disappears on the corresponding binary outputs. Take the HPTMPMAX readings and
compare with the reset level settings.
Verifying LOLINDAY and LOLINYRS outputs
1. Connect the test set for injection of three-phase currents to the appropriate current terminals of
the IED.
2. Make sure that the settings in the IED are appropriate, especially set the EnaAgeCalc setting
as Enable, TimeToUpdate setting as 1 hour and AgeingRateMeth setting as IEC.
3. Activate the TOTVALID input and set some temperature value in TOTEMP input.
4. Supply the IED with three-phase currents slightly more than the rated value.
5. Note the hot spot temperature (HPTMPMAX) and maintain it for another 1 hour.
6. Check the LOLINDAY and LOLINYRS outputs after 1 hour and compare it with the calculated
loss of life value using IEC standard method.
11.13.6.2 Completing the test
Continue to test another function or end the test by changing the Test mode setting to Off. Restore
connections and settings to their original values, if they were changed for testing purposes.
11.13.7 Through fault monitoring PTRSTHR
Prepare the IED for verification of settings outlined in Section
11.13.7.1 Verifying the signals and settings
The voltage or current can be injected using a common test equipment.
194
© 2017 - 2021 Hitachi Power Grids. All rights reserved
1MRK 511 403-UEN Rev. K
GUID-C1B747CC-F961-4C6B-BB72-5F32B3FB3F06 v1
GUID-46EC57EA-375B-4DBD-BE18-914156083384 v1
GUID-7AE60CB5-3CD5-4FE2-8D54-664AA78DD2DE v1
GUID-079BCF22-469C-42EA-B857-E28154EC13D9 v1
"Preparing the IED to verify
GUID-0295EF7C-217E-4400-B7C2-68C00A38ADF3 v1
Bay control REC670
Commissioning manual
settings".