ABB Relion 670 Series Commissioning Manual page 210

Section 11
Testing functionality by secondary injection
Verifying HPTMPMAX and TOTCALC outputs
1. Connect the test set for injection of three-phase currents to the appropriate current terminals of the
IED.
2. Activate the TOTVALID input and set some temperature value in TOTEMP input.
3. Supply the IED with three-phase currents slightly more than the rated value.
4. Make sure that the hot spot temperature (HPTMPMAX) is more than the set value of TOTEMP.
5. Activate the AMBVALID input and set some temperature value in AMBTEMP input.
6. Make sure that the top oil temperature calculated (TOTCALC) is more than the set value of
AMBTEMP.
Verifying WARNINGx and ALARMx 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 the warning temperature levels
(WrnHPTmpLevX) and alarm time settings (tDelayToAlarmX).
3. Supply three-phase currents nearly zero to the IED and take note of hot spot temperature
(HPTMPMAX).
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.
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Commissioning manual