Completing The Test - ABB RET670 Commissioning Manual

1MRK 504 154-UUS B
ANSI06000652 V2 EN-US
Figure 38: Example characteristic
Non-directional ground fault current protection
Procedure
1. Measure that the trip current is equal to the
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
selected.
4. Continue to test another function or complete the test by setting the test mode to
Residual overvoltage release and protection
Procedure
1. Measure that the trip voltage is equal to the
The function activates the PICKUP and PUVN signals.
2. Measure the trip time by injecting a voltage 1.2 times set
3. Compare the result with the set
4. Inject a voltage 0.8 ·
chosen angle.
5. Increase the voltage until the directional function is released.
6. Compare the measured value with the set
10.5.6.2

Completing the test

Continue to test another function or end the test by changing the
Restore connections and settings to their original values, if they were changed for testing
purposes.
Commissioning manual
RCA = 0º
ROA = 80º
ANSI06000652-2-en.vsd
INNonDirPU setting.
tVN trip value.
VNRelPU and a current high enough to trip the directional function at the
VNRelPU trip value.
Testing functionality by secondary injection
Operate area
3I
0
V =-3V
ref 0
tINNonDir or inverse time was
VN_PU setting.
VN_PU trip value.
TestMode setting to Disabled .
Section 10
SEMOD175060-117 v10
Disabled .
SEMOD175060-131 v6
SEMOD175060-148 v4
147