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Question
What could be the problem if two power transformers trip on 
stand by earth fault at same time
 Question Submitted By :: Mahao
I also faced this Question!!     Rank Answer Posted By  
 
  Re: What could be the problem if two power transformers trip on stand by earth fault at same time
Answer
# 1
If the point ct neutral earthing is in the path of earth
fault current, there is likelihood of tripping of standby
transformers on earth fault.
 
Is This Answer Correct ?    1 Yes 0 No
K.prakashchandra
 

 
 
 
Other Electrical Engineering Interview Questions
 
  Question Asked @ Answers
 
what is basic difference between the normal tube light choke and electionic choke ? Amaron 4
Why the rating of the HT breakers are in 1250 Amp, while the load on the breaker is around 50 Amp. ? Wipro 8
what objective books are good for preparing for PSU's? NTPC 2
hoW to select a CT? BARC 4
when we r using 3.5 cable for a bldg. and put laod on each phase using the neutral and neutral is the return paht for the phase so the current of the neutral must be Ir+Ib+iY (return).But the size of the netural is .5 as comper to the phase.   2
Difference between directional over current and non directional over current ?   2
What is different between Metering CTs and Protection CTs?   4
we often use the word HT (high tension) line.or we say HT switch gear, whats does HT basically mean. is it different from high voltage.   2
what is residuel magnetism   1
HOW WOULD YOU PRESENT THE POWER FACTOR PRACTICALLY ON A GRAPH Bhel 4
what is earthed and inearthed cable or system? CCCL 1
what is the formulae for selcting capacitor bank to increas pf   4
 
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