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)
- 9 Answers
- 10213 Views
- I also Faced
- E-Mail Answers
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
There are a trformer and an induction machine. Those two have the same supply. For which device the load current will be maximum? And why?
I want to design a heating coil of 80/20 nicrome for 3.5KW please give me the calculations choosing for physical dimensions assume coil voltage will be 110V AC assume necessary conditions
what is the difference between droop mode and ischnorous mode in thermal powerplant?
why ht cable end termination don't have a gland?
What is force on parallel conductors ?
what is the circutor?why we use it ?
how to calculate regulation constants for over head lines? and what are the regulation constant for raccoon conductor at different voltage level and different P.F?
What is NGR . What is the purpose of 10 sec ,60 sec rating of NGR.
how to find the resistance and gap volatage of the diode??
how a flip flop can be used as a latch?
distribution is maximum done by a)radial b)network c) parallel d)b & c
In 90 kva alternator that produce the output voltage is 115(p-n),200(p-p) at 1500 rpms means what ampere it produced ?
how to calculate differential current when we testing differential relay..suppose we have 1000kw generator,630amp VCB,what value we should put /inject so that relay trip the VCB? PLLZ justify ur comment
what is the interrelation between voltage current torgue speed and magnetic flux in case of different types of electric motors
What is difference and reason b/w -48V BTS system and 24 V BTS system. Plzzzzzzzzz tel me.
