ABB REG670 Commissioning Manual page 287

1MRK 502 073-UUS A
Generator protection REG670 2.2 ANSI and Injection equipment REX060, REX061, REX062
Commissioning manual
Verification of EAFACC & ERFACC output
1. Connect the test set for injection of three-phase currents and three-phase voltage to
the appropriate current and voltage terminals of the IED.
2. Ensure the instantaneous values of active and reactive power from CVMMXN
function block are connected to ETPMMTR function block active and reactive
power inputs.
3. Enable the EnaAcc setting and set tEnergy as 1 minute.
4. Activate the STARTACC input and supply the IED with three-phase currents and
voltages at their rated value.
5. Check that the ACCINPRG signal appears continuously.
6. Note the EAFACC and ERFACCvalue after 1 minute and compare it with
calculated energy value.
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
Testing functionality by secondary injection
Section 13
281