Shindaiwa DG50MKM-P Owner's And Operator's Manual page 20

The generator is provided with the earth leakage breaker relay to detect any leakage
produced due to such the trouble as insulation failure of the load while the generator is
running and to cut off the circuit for protection against any accident such as electrical
shock resulting from the trouble. The specification of the earth leakage relay ;
 Rated Sensitive Current: 30mA (or below) (Grounding resistance: 500Ω or below).
 Sensitive time: Within 0.1 second.
(1) Grounding Work
The qualified electrician should perform the grounding
of the following 2 points(500Ωor below).
 The Bonnet grounding terminal of the generator.
 The Bonnet of the load.
< Note >
 In the event you cannot ground the generator to the earth,
consult with the authorized distributor or our engineering
section.
(2) Operation Check
WARNING : ELECTRIC SHOCK
 Before turning the circuit breaker to ON position, ensure that the breaker or
the switch of loads are positioned to OFF.
Operate the circuit breaker, well-communicating with the electrician by the load side.
Before operating the generator, check always if the device can work.
● Actuation test of the Earth Leakage Relay and Breaker.
① Ensure that the breaker and the switches of loads are
positioned to OFF.
② Ensure that the main circuit breaker positioned to OFF.
(Refer to "4-2.Operation Panel Part Names" and
"4-3.Output Panel")
③ Following the procedure in 9-1, Initial Startup /
Pre-Check,start an engine.
④ Turn every breaker and ELCB to ON .
⑤ Push the TEST button on 3-Phase ELCB.
Indicator changes to Green from RED and ELCB
trips to OFF, Which shows NORMAL.
⑥ Push the TEST button on 1-Phase ELCB.
Indicator changes to Green from RED and ELCB
trips to OFF, Which shows NORMAL.
⑦ Turn the main circuit breaker to OFF position.
In the event you cannot complete every step of the above
procedure to the end,the device is out of order. Consult
with our authorized distributor or our engineering section
and ask to repair.
17
Bonnet Grounding Terminal
Battery isolator
Main Circuit Breaker
TEST button
Indicator
TEST
3-Phase ELCB
TEST button
TEST
Indicator
1-Phase ELCB