VA
VB
VC
VN
VA
VA
VB
VC
I
E
D
T
E
S
T
S
E
T
I
E
D
ANSI07000107-1-en.vsd
VB
VC
VN
1
2
ANSI07000107 V2 EN-US
Figure 59: Connection of the test set to the IED for test of V2 block level
where:
1 is three-phase voltage group1 (V1)
2 is three-phase voltage group2 (V2)
2. Apply voltage higher than the highest set value of VDTrip, V1Low and V2Low to
the V1 three-phase inputs and to one phase of the V2 inputs according to
figure
59.
The voltage differential PICKUP signal is set.
3. Decrease slowly the voltage in phase VC of the test set until the PICKUP signal
resets.
4. Check V2 blocking level by comparing the voltage level at reset with the set
undervoltage blocking V2Low.
13.6.5.2 Check of voltage differential trip and alarm levels
SEMOD175258-104 v3
Procedure
1. Connect voltages to the IED according to valid connection diagram and figure
60.
Section 13 1MRK 502 073-UUS A
Testing functionality by secondary injection
226 Generator protection REG670 2.2 ANSI and Injection equipment REX060, REX061, REX062
Commissioning manual
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