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Question
What is MPCB, MCCB, ELCB, RCCB ? Explain them ?
 Question Submitted By :: Electrical-Engineering
I also faced this Question!!     Answer Posted By  
 
Answer
# 1
MPCB-Motor Protection Circuit Breakers
MCCB- moulded case circuit breaker
ELCB-EARTH LEAKAGE CIRCUIT BREAKER
RCCB-RESIDUAL CURRENT CONTROL CIRCUIT BREAKER
 
Is This Answer Correct ?    21 Yes 3 No
Parthasarathi Biswas
 
Answer
# 2
MPCB-Motor Protection Circuit Breakers
MCCB- moulded case circuit breaker
ELCB- Earth Leakage Circuit Breaker
RCCB-ResidualCurrent Circuit Breaker
 
Is This Answer Correct ?    13 Yes 0 No
Syed
 
 
 

 
 
 
Other Electrical Engineering Interview Questions
 
  Question Asked @ Answers
 
as we know that N=120f/P speed of an im can be controled only through changing no if poles, can we control by changing the frequncy???? JSW 7
I have a generator of 300kw.400V,50hz . what is means can i assume the load Red Phase with Neutral 300kw.Yellow phase with neutral 300kw and Blue with neutral also 300Kw. or - red with neutral 100kw same as yelloe and blue phase also giving 100kw with neutral respectively   3
what is use of starter motor in DG ?   2
I want to know what must the CT ratio be on a load of 300A is a 3PH nutral to earh installation?   4
what is the best electrical system i.e substation sytem of 11kv/.433kv for a township. if township have 300nos substation of 11kv. we have to go G.O.D.O. fuse unit or Compact Substation Unit. please reply Asap.   2
what is residuel magnetism   1
why ac generator ratings in kva only why not kw ????????????? ?   7
What is the basic difference among IPS,UPS,EPS? ABB 2
can a synchronous motor be made to rotate in a clockwise direction ?   1
On what factors the generating voltage depends ? Generating voltage are (3.3kV, 6.6KV , 11KV, 13.8kV) Why so ? Bhel 5
different between grounding & earthing? L&T 21
What will happen if the interpoles in case of a generator have opposite polarities to that behind it in the direction of rotation ?   1
 
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