ABB REG670 Commissioning Manual page 231

1MRK 502 073-UUS A
Generator protection REG670 2.2 ANSI and Injection equipment REX060, REX061, REX062
Commissioning manual
VA
VB
VC
VN
ANSI07000106 V2 EN-US
Figure 58: Connection of the test set to the IED for test of V1 block level
where:
1 is three-phase voltage group1 (V1)
2 is three-phase voltage group2 (V2)
3. Decrease slowly the voltage in phase VA of the test set until the PICKUP signal
resets.
4. Check V1 blocking level by comparing the voltage level at reset with the set
undervoltage blocking V1Low.
5. Repeat steps 2 to 4
The connections to V1 must be shifted to test another phase. (VA
to VB, VB to VC, VC to VA)
Check of V2Low
Procedure
1. Connect voltages to the IED according to valid connection diagram and figure 59.
Testing functionality by secondary injection
to check V1Low for the other phases.
Section 13
VA
VB
1
VC
VN
VA
2
VB
VC
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