Relay Metering; Current Metering - GE MIFII GEK-106237P Instruction Manual

9.10 RELAY METERING

9.10 RELAY METERING
PHASE CURRENT
Set the relay to 50Hz and apply the following currents:
PHASE
Ia (Amps)
Ib (Amps)
Ic (Amps)
Check that the relay measures Ia, Ib and Ic with an accuracy better than 3%.
Set the relay at 60Hz and repeat the test.
GROUND CURRENT
Set the relay to 50Hz and apply the following current:
Check that the relay measures the current with accuracy better than 3%.
Set the relay at 60Hz and repeat the test.
9
9-10
1 2
0.5 x In (phase)
0.1 x In (phase)
1
In (Amps) 0.1 x In (ground)
MIFII Digital Feeder Relay
9 RELAY COMMISSIONING

9.10.1 CURRENT METERING

3 4
1 x In (phase)
2 x In (phase)
2
4 x In (ground)
GEK-106237P