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Question
What is the formula for calculating transformer Efficiency?
 Question Submitted By :: Hcnaidu
I also faced this Question!!     Rank Answer Posted By  
 
  Re: What is the formula for calculating transformer Efficiency?
Answer
# 1
Output Power/Input Power*100 
Is This Answer Correct ?    10 Yes 1 No
Hcnaidu
 
  Re: What is the formula for calculating transformer Efficiency?
Answer
# 2
%eff=(output power)/(input power)
=(output power)/(output power + total losses)
=(output power)/(output power + iron loss + cu loss)
 
Is This Answer Correct ?    2 Yes 1 No
Bhavana
 
 
 

 
 
 
Other Electrical Engineering Interview Questions
 
  Question Asked @ Answers
 
I did oil BDV test of 1600 KVA trafo 20KV/400V as per IEC 156. Result is 1) 58 KV 2) 58 KV 3)40 KV 4) 50 KV 5) 58 KV 6) 18 KV. Avr is 47 KV. Can we say oil is still ok even in the 6th test BDV is 18 KV ?   1
why a vaccum is created in condenser Honda 8
What is the Difference Between MCCB & ACB & VCB   2
what is the difference between between open delta and broken delta? Reliance 5
if we increase frequency of line, then how will string efficiency varies with it.   1
if we supply to secondary winding how transformer work?   2
Why the meters sonnected to metering core of CT are not damagedon event of a fault??? Explain the phenomena?? Schneider 1
an ac induction motor gets overheated when operated at a low frequency of 25 hz a instead of 50 hz. reason?   1
HOW isolation transformer works.   2
In a 3 pin plug holder, what is the purpose of diameter of ground pin is larger than phase and nutral pin HCL 9
Are generator action and motor action relates to a particular machine only?   2
what is the solution for meger test failed the MV cable?   1
 
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