Commissioning and continous operation
18
5.4 Regular tests
Observe the deadlines for regular testing of the power generator and the connected
electrical equipment according to the accident prevention regulation BGV A3.
5.5 Troubleshooting
Of course, an insulation fault can also occur during the daily use of the power generator.
Thus, all loads plugged into the VG12 are suddenly shut down and the LEDs AL1 and
AL2 light up. What is to be done in this case?
Fault description
Presumed cause
Actions
LEDs "AL1"/"AL2" light
up.
Combined
test/reset button
"T/R"was pressed
deliberately or acci-
dentally.
Press the combined test/reset button "T/R"
for 1 s.
LEDs "AL1"/"AL2" light
up
(
no
loads connected).
Insulation fault
power generator
Turn off power generator immediately.
Arrange checking by skilled person.
LEDs "AL1"/"AL2" light
up
(loads
are
connected).
Insulation fault load
or power generator
Unplug plugs of all loads. Then press com-
bined test/reset button "T/R".
a)
LEDs "AL1"/"AL2"
do not
go out:
Arrange checking of the power generator by
electrically skilled person.
b)
LEDs "AL1"/"AL2" go out:
A load has an insulation fault. Plug in plugs of
the loads one after the other until alarm and
shutdown occur again.
Remove damaged load again and press reset
button "R".
Arrange checking of damaged load by elec-
trically skilled person.
