Ground Fault Pickup Test - GE MicroVersaTrip TVTS1 Manual

GROUND FAULT PICKUP Test
Purpose
Verify that pickup occurs within tolerance. This requires
two tests at any selected pickup selling
1. Test for NO PICKUP at the lower tolerance limit
2 Test for PICKUP at the upper tolerance limit.
Test Procedure
NO PICKUP
1. Position Test Set Controls:
TEST SELECTOR-GROUND FAULT
PROGRAMMER TYPE-Set on,
TYPE A for: T4VT, TP4VT20, TP4VT25, T9VT,
TP9VT20, TP9VT25, TAVT20
TYPE B for: TP4VT30, TP9VT30, TP9VT40, TAVT32,
TAVT40
Or determine by running CONVERTER CHECK.
2. TEST CURRENT: Preset the lower limit (NO PICKUP)
test current from Table 6.
3. Reset timer and RESET bullon.
4. Push START. The unit should not trip.
Discontinue the test after three seconds by pushing the
RESET button.
Table 6-Ground Fault Pickup
Test Current
Programmer Lower Upper
GF Pickup Limit Limit
Setting (No Pickup) (Pickup)
020X 0.175 0.227
022X 0.192 0.249
0.24X
~
0.210 0.272
0.25X 0.218 0.283
0.26X
0.227
0.295
0.28X 0.244 0.317
0.30X 0.262 0.340
0.34X 0.297 0.385
0.35X 0.306
0.397
0.37X 0.323 OA19
OAOX
0.349
OA53
045X 0.393
0.510
0.50X 0437 0.567
0.60X 0.524 0.680
-
PICKUP
1. Position Test Set Controls-Same as NO PICKUP.
2. TEST CURRENT: Preset the upper limit (PICKUP) test
current from Table 6.
3. Reset timer and RESET button.
4. Push START. The unit must trip in less than three sec-
onds as indicated by the timer.
ACTUAL PICKUP VALUE (IF DESIRED)
Starting at the lower tolerance limit (Table 6), test incre-
mental increases in test current until a trip occurs in less
than three seconds as indicated by the timer. Push the PRE-
SET CURRENT button and read the actual pickup value.
l __ _
IF TEST RESULTS DO NOT CONFORM, SEE PAGE 21
15