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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 :: Electrical-Engineering
I also faced this Question!!     Answer Posted By  
 
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 the function of AVR in generator? how the generator maintain the frequency while varies the load?   1
can we light the mercury vapour (tube light)with out a 1).starter and 2).choke in our homes if yes explain how?   5
Which one hurts more AC or DC Current ?   9
Which power will flow first if we switch on a motor Active or Reactive? How?   3
In Slip ring Induction Motor we use Liquid Rotor Starter for Starter Every Time Liquid Filling we need add Soda Sodium Carbonate or only Distilled water is Enough.   2
How open delta used for protection?   4
DEAR SIR, HOW TO CALCULATE WELDING TRANSFORMER CAPACITY IN KW OR KVA (POWER). TWO WELDING TRANSFORMER USED WHAT TYPE OF DG SET CAPACITY LIKE ( 45 KVA OR 62.5 KVA), PLEASE TELL THE WELDING TRANSFORMER RATEINGS. I AM REFINARY (TANKS WELDING) THANKING YOU   2
which will glow brighter?bulb 1 (110v,100w) and bulb 2 (230v.200w) series connection   6
Two 11 kv lines are feeding to common bus in a substation,I have one set of CT & PT(3ct,2pt), How can I measure both lines power using single set. L&T 6
Difference between UPS and Inverter? HCL 7
How one can check the faulty capacitor, diode when connected in the circuit ? and when you can not take them out ?   4
WHAT IS THE MEANING OF 'UPF'&'LPF'.... HOW CAN WE DEFINE IT? WHAT IS THE VALUE/RANGE OF EARTH WIRE RESISTANCE USED PARTICULARLY IN HOME....   2
 
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