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Question
why it is important to earth neutral of 3 phase transformer?
 Question Submitted By :: Electrical-Engineering
I also faced this Question!!     Answer Posted By  
 
Answer
# 1
to make zero potential 
Is This Answer Correct ?    32 Yes 2 No
Anusreemenon
 
Answer
# 2
unbalance creat shifting of neutral 
Is This Answer Correct ?    14 Yes 5 No
Anil
 
 
 
Answer
# 3
it is done to make the neutral at zero potential
coz if there is unbalance in potential the neutral may
shift.
 
Is This Answer Correct ?    10 Yes 1 No
Er. Ankush Miglani 9718151073
 
Answer
# 4
when there is a unbalace among the phases due to change in
load circulating current introduced this fault caurrent can
be eathed via neutral .
 
Is This Answer Correct ?    6 Yes 2 No
Guest
 
Answer
# 5
for stepdown distribution transformers the secondery side ie
lt side y-with nutrel earhto be connected because of load
side the current is not zero ie varying.hence we r connected
y-with nutrel earh......... finally this because of stand by
earth fault in load sideie secondery side..
 
Is This Answer Correct ?    2 Yes 0 No
Srinivas@vsp
 
Answer
# 6
it is because to make path for the current generated due to imbalance in d three phases 
Is This Answer Correct ?    2 Yes 0 No
Pranjal.job
 
Answer
# 7
to provide the protection from the over current,over loading 
Is This Answer Correct ?    0 Yes 3 No
Guest
 
Answer
# 8
to aviode the short circite 
Is This Answer Correct ?    0 Yes 4 No
Kishor
 
Answer
# 9
neutral of 3 phase transformer potential 0
 
Is This Answer Correct ?    1 Yes 6 No
Ramarpandi
 

 
 
 
Other Electrical Engineering Interview Questions
 
  Question Asked @ Answers
 
Is a induction motor rotate by back emf ? If not , then how it is rotate ?   1
can we transmit power with out cable if it is possible how it is possible.   2
what is the design factor that affects the size of a motor ? Reliance 3
What happens if there is no nuetral in the power system?   4
Why transformer use to generator neutral earthing purpose ?   1
can any one tell me the formula to select the thickness of wire selection according to ampere rating   2
ohm's law is applicable to DC/AC/Both?? KPIT 5
what will happen to the core losses if we perform the open ckt test on high voltage side of a transformer ?   2
If in a 3 phase supply if the load current is 200A what value of current the each phase R,Y & B will carry?   4
FRIENDS, I am doing DEEE (part time)final year. Give me some ideas for project HCL 5
how to calculate knee point voltage of current transformer? Bhilai 18
how to calculate power factor of capacitor? what is transformer rating?   2
 
For more Electrical Engineering Interview Questions Click Here 
 
 
 
 
 


   
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