I am an electrical power engineer and arranged power system
for a data center, I installed MCB, ELCB and erthing system
TN-C-S.
But some times several ELCBs Disconnect circuits at the
same time! what may be the reason? (the ELCBs are 25A ,30mA)
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Answer Posted / nageshwaran.n
Hi boss, check the connections properly.
Check for:
1. Total Load on MCB's. It should not exceed the market
rating.
2. For ELCB's, check the circuit for the leads interchange.
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