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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 conditions are required for a transformer to operate at low frequencies ?   1
An 11kv system consisting of an underground cable to a sub station about 300 meters away was shut down for about 10 hrs. On energising, it tripped off on earth fault about 10---20 mins later 6 times but since than it is not tripping.its already 3 weeks now. The SPAJ was found to be fine. what could be the cause.No test had been done to determine the cause of the trippings till now because of demand.   2
Why current flows in nutral? As per theory there should be no current in 3 ph explain. Bhel 11
what is restircted earth fault relay,how it works? what is diffrance btwn normal earth falut relay & restricted earth fault relay?   1
why battery is connected in series? HP 10
can we use ordinary transformer in place of autotransformer?give reasons also   1
Why we use a H.T. Fuse from a thick wire, on other side we use high rating of cables? & Why we use less Sq. mm Cable on H.T. side , on other side we use Large Sq. mm cable?   1
how steam converted into electricity in power plant   4
State the difference between Three winding transformers and Two winding transformers ? where its used?   8
what will be happen if we apply D.C supply to the transformer CCBPL 13
When charging a 20 MVA , 33kV/6.6kV transformer through regulated (0-6.6 kV or 0-33 kV) source on no load , what will be the maximum current drawn by transformer from source and what sould be the source capacity. TATA 5
what is stacking factor?   1
 
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