Question { HCL, 38968 }

what is the difference between elcb,rccb,mcb.

Answer

MCB=minature circut breaker.
in case of high current(surge)trying to entering the
circuit it breakes the circut(trips).
RCCB=Resubel current circuit breaker.
in case of earthing leackage the cirucits trips. works as
MCB+earth leakage.
ELCB=Earth leackage circuit breaker.
same as MCB+earth leackage.

Question { 15981 }

no EB power DG is not starting?

Answer

if the DG is in auto mode
1)Signal may be not reaching the DG from main panel.
2)Battery may not have enough charge to crank the DG.
3)Shortage of fule in DG or flow of fule to th DG may have
problem.
4)In case of more no of DG controle wiring may have problem.
5)synchronization off DG may have problem.
6)phase sequence may have problem.