(3) M easurem ent o f insulation resistance.
Ж WARNING
ELECTRIC SHOCK can
loll.
* Measurement should be made after the machine stops.
- Using a 500V insulation resistance tester, make a check once a month to ensure
that the insulation resistance is more than 1M £2.
In case o f measuring with an insulation resistance tester over 500 VDC current,
disconnect all connectors from the AVR located in the control box before measuring.
Measurement:
Disconnect the load side cable from the output terminal as shown at below.
Turn ON the circuit breaker and measure the insulation resistance between the
output terminal bolt and the bonnet.
- If the measured resistance is less than 1M Q, it may cause electric leakage or fire
accident. Wipe o ff dirt and oil on the output terminals, circuit breakers and
generator leads (cables) and dry them thoroughly.
If the insulation resistance is not recovered after cleaning, contact distributor or
our office.
bonnet
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