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Question
how we select the mva rating of the circuit breakers?
 Question Submitted By :: Electrical-Engineering
I also faced this Question!!     Answer Posted By  
 
Answer
# 1
accordig to the voltage of the system & peak value of fault
current to be interrupted by the breaker
 
Is This Answer Correct ?    5 Yes 0 No
Akhilesh Negi
 

 
 
 
Other Electrical Engineering Interview Questions
 
  Question Asked @ Answers
 
what will happen if we give a dc supply to a transformer.?   10
I have draw the 350A DC current, so what is the size of cable i can use? Give me the answer with formula   1
The neutral&earth voltage is 0v.But we were connected the lighting load at the time ballast was failed.why?   1
If the maximum demand is 120 KVA in a building, then what is the Current taken according to load given ? Formula for it ?   3
What is drain current of static relay?   1
what happen if steam turbine trip,g.c.b not open and excitation off and on condition?   1
1.what to do if ferquency of any power system continue to decrease ? NTPC 5
Can we use all 3 cores of a cable to connect DC motor + ve terminal and similarly one more cable for - ve terminal.   2
what will be happen if we apply D.C supply to the transformer CCBPL 13
how squirrel cage & slip ring motor works? how they differ from each other   1
generally rectifying of ac tells. ac signel appear at phase and neutral with respect to frequency by -veand +cycles. but we doesn't experience shock with neutral in house hold ac??????. tcs 1
what is the merz prodution ? what is the turn to turn fault? L&T 2
 
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