Hitachi REC670, Руководство по вводу в эксплуатацию

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11.14.2.1 Verifying the settings
GUID-F8F0D384-BC70-48CA-817E-EB9BFBD68A54 v3
Common test equipment can be used to determine the injection of current and voltage and time
measurement.
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
ERFACC
value 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
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 11 1MRK 511 403-UEN Rev. L
Testing functionality by secondary injection
202 Bay control REC670
Commissioning manual
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