ABB rec670 Commissioning Manual page 193

1MRK 511 360-UEN A
Bay control REC670 2.1 IEC
Commissioning manual
Testing functionality by secondary injection
7. Similarly check after each 1 minute whether the calculated integrated energy
value and EAFACC and ERFACC outputs are matching.
8. After some time (multiple of minute) remove the current and voltage input from
CVMMXN function block.
9. Check the EAFACC and ERFACC output in the next 1 minute cycle for the
retaining the same value.
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 three 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 three 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 three 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.
Section 10
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