10. Activate STOPACC input after some time and supply the IED with same
current and voltage.
11. Check that the ACCINPRG signal disappears immediately and EAFACC and
ERFACC outputs also stop updating.
12. Similarly the testing can be done for EAFACC and ERFACC outputs by
changing the power inputs directions through direction settings.
Verification of MAXPAFD & MAXPRFD outputs
1. Repeat the above test steps 1 to 2.
2. Set tEnergy setting as 1 minute and supply the IED with two-phase currents
and voltages at their rated value till 1 minute.
3. Check the MAXPAFD and MAXPRFD outputs after 1 minute and compare it
with last 1 minute average power values.
4. Increase either two-phase current or voltage above the last 1 minute value.
5. After 1 minute check the MAXPAFD and MAXPRFD whether it is showing the
last 1 minute average power value as maximum.
6. Next 1 minute cycle reduce the current or voltage below previous value.
7. Check after 1 minute whether the MAXPAFD and MAXPRFD outputs are
retaining the old maximum value.
8. Similarly the testing can be done for MAXPAFD and MAXPRFD outputs by
changing the power inputs directions through direction settings.
Verification of EAFALM & ERFALM outputs
1. Repeat the above test steps 1 to 2.
2. Set tEnergy setting as 1 minute and supply the IED with two-phase currents
and voltages at their rated value till 1 minute.
3. Ensure that the active and reactive energy values are less than the EALim and
ERLim setting default values respectively.
4. Check that EAFALM and ERFALM are low.
5. Increase the supply currents or voltage in next 1 minute cycle such that the
active or reactive energy values are greater than the EALim and ERLim setting
default values respectively.
6. Check that EAFALM and ERFALM are high after 1 minute.
7. Similarly the testing can be done for EARALM and ERRALM outputs by
changing the power inputs directions through direction settings.
10.13.2.2 Completing the test
M13906-301 v5
continue to test another function or end the test by changing the TESTMODE
setting to Off. Restore connections and settings to their original values, if they were
changed for testing purposes.
Section 10 1MRK 506 377-UEN C
Testing functionality by secondary injection
178 Railway application RER670 2.2 IEC
Commissioning manual
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