VA
VB
VC
VN
VA
VA
VB
VC
I
E
D
T
E
S
T
S
E
T
I
E
D
ANSI07000106-1-en.vsd
VB
VC
VN
1
2
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 to check V1Low for the other phases.
The connections to V1 must be shifted to test another phase. (VA
to VB, VB to VC, VC to VA)
Check of V2Low
SEMOD175258-91 v3
Procedure
1. Connect voltages to the IED according to valid connection diagram and figure 59.
1MRK 502 073-UUS A Section 13
Testing functionality by secondary injection
Generator protection REG670 2.2 ANSI and Injection equipment REX060, REX061, REX062 225
Commissioning manual
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