TM 5-3895-374-24-1SYSTEMTESTPROCEDURESGROUND FAULT PROTECTION SYSTEMTYPE GCA.These tests are to be performed by qualified personnel onlyB.Visually check that the busses of the circuit to be protected are Installed through the window of GA-12 sensor.C.Remove power. The grounding points of the system shall be verified to determine that ground paths do not existDisconnect neutral from system ground at power distribution panel Connect megohm meter between neutral andground to verify that no extraneous grounds exist downstream (beyond ground fault sensor) on neutral line.Reconnect neutral line; restore power and continue with test.D.Ground Censor Test OnlySystem Test(Service Maintained)(Service Interrupted)1. Press and hold test button1.Press test and reset buttons simultaneously2. After the relay times out, lamp L1 on2.After the relay times out, lamps L1 and L2 monitor panel turns on to indicate com-turn on and the disconnect the coil picks up.ponents are working properly3.Releasing the test button automatically resets3. Releasing the test button automaticallythe ground fault relay.resets the ground fault relayNOTE: If additional testing Is necessary, allow 30 seconds before repeating above procedures.E.Record test results on reverse side.(page 3-86)
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