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Question
what is the kva rating of 20 kv transformer?
 Question Submitted By :: Electrical-Engineering
I also faced this Question!!     Answer Posted By  
 
Answer
# 1
Depends on rated current and phases 
Is This Answer Correct ?    0 Yes 2 No
K.prakashchandra
 

 
 
 
Other Electrical Engineering Interview Questions
 
  Question Asked @ Answers
 
what is ring main unit(Rmu)? what is its function   1
what happens when parallel resonance occurs?   2
why transmission voltages are in multiple of 11kv?   9
cb used in railway applications is? NTPC 2
When do you use a VFD motor?   1
when giving a supply to wounded coil it will get magnetised, but the same is not if it is not wounded on a core..and it is getiing short....why.......   3
how will u exactly calculate the unit consumption of the Air conditioners?Split/Window/   3
Why we use cosine angle for calculating power factor not in sine angle ?   3
what is difference between delta-delta,delta-star transformers ???   2
WHAT IS THE NECESSITY OF GIVING PARTICULAR COLOURS FOR 3 PHASE TRANSFORMERS.....   5
When should I use earth leakage circuit breaker for incomer and when should I use it for each feeder seperately?   1
I have carried out wiring for lighting in a shed in Industrial area which contains Metal halide lamps & have balanced in 3ph.Now when we put all the lines on in the daytime the current taken at 3phases at MCB comes to be equal i.e.28,29,28Amps respectively but in the night time i.e between 7p.m.to 11p.m. at the same MCb the current is 52,59,62Amp, though I have fit 63A MCB it is tripping in the above period.What may be the reason.? Note: This industry is located in industrial area where majority of steel ingot manufacturing plants are there. Whether this may be due to harmonic? what should I do to overcome above problem.pl suggest urgently.   4
 
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