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)
Answer Posted / k.p.sharma
Mr.chandra & mehndi is right and the normally mA of ELCB
used IS AS BELOW:-
1. FOR DOMESTIC = 30MA
2. FOR COMMERCIAL BUILDINGS ETC = 100MA
3. FOR INDUSTRIES = 300MA
| Is This Answer Correct ? | 2 Yes | 0 No |
Post New Answer View All Answers
If a 3 phase induction motor is in off condition in the conveyor and rotor of the motor keeps moving with the conveyor than the resistance of windings of motor varies. why is it so ??
What is EHT tariff or Power factor Tariff ????
is it value of power factor is more than unit. whats effects in the source supply
Which Class insulation is prefered for the sandwich Busducts ? Why?
how to do the ductor test?
what is mean by descripiency relay? & wht is its ansi code?
How DC earth leakage currents can be reduced ?
I have been using an 600VA with 0.6 p.f UPS with my desktop which has 450W power supply unit. Can anyone explain how can this happen . Because the output of the UPS is 360W (600*0.6) (<450W)
What is the efficiency during maximum power transfer?
why actual valve timing diagram is different than ideal valve timing digram of a 4 stroke engine?
how can i improve the power factor in domestic (230v)
How will you define capacitance?
What is Control & Relay Panel? And Remote Control Center?
Write down the name of 2 lady Bir Pratin of Bangladesh
What is the drawback of class b amplifier? How is this minimized?