V
ref
=-3V
0
Operate area
3I
0
RCA = 0º
ROA = 80º
ANSI06000652-2-en.vsd
ANSI06000652 V2 EN-US
Figure 57: Example characteristic
Non-directional ground fault current protection
SEMOD175060-117 v10
Procedure
1. Measure that the trip current is equal to the INNonDirPU setting.
The function activates the PICKUP and PUDIRIN output.
2. Measure the trip time of the timer by injecting a current of 200% of the trip value.
3. Compare the result with the expected value.
The expected value depends on whether definite time tINNonDir or inverse time
was selected.
4. Continue to test another function or complete the test by setting the test mode to
Disabled.
Residual overvoltage release and protection
SEMOD175060-131 v6
Procedure
1. Measure that the trip voltage is equal to the VN_PU setting.
The function activates the PICKUP and PUVN signals.
2. Measure the trip time by injecting a voltage 1.2 times set VN_PU trip value.
3. Compare the result with the set tVN trip value.
1MRK 502 073-UUS A Section 13
Testing functionality by secondary injection
Generator protection REG670 2.2 ANSI and Injection equipment REX060, REX061, REX062 199
Commissioning manual
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