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Question
What are protection of transformer on HT side & on LT side?
 Question Submitted By :: Electrical-Engineering
I also faced this Question!!     Answer Posted By  
 
Answer
# 1
For HT tran. high winding & oil temp. alarm with triping
portection must be there. And Buchholz relay triping also
necessary. Addition to that Over current, earth fault realy
must be there.
 
Is This Answer Correct ?    5 Yes 2 No
Santosh Mulay
 
Answer
# 2
If the transformer is below 1000KVA, for the HT side
protection AB switch and HG Fuse must be used and for the LT
side protection ACB/OCB must be used.
If the transformer is above 1000KVA, for the HT side
protection VCB/ACB must be used and for the LT side
protection ACB/OCB must be used.
 
Is This Answer Correct ?    10 Yes 13 No
Krishna
 
 
 
Answer
# 3
on ht side Drop out fuse used for overhead line and lt sie
HRC fuse with fsp ( Fuse section Pillar)
 
Is This Answer Correct ?    1 Yes 6 No
Neeraj Dubey
 

 
 
 
Other Electrical Engineering Interview Questions
 
  Question Asked @ Answers
 
How will u calculate wire size according to current rating? Global-Computer 2
Off-circuit Tap changers in distribution transformer required   1
why using in cable mm square which is mm & which is square why using mm & square. Airtel 1
the distance from my office to d.g is aprox 400mtrs and voltage drops ibn my office near about 40 volt what should i do p[ls suggest.   6
Can without battery on line UPS,off line UPS or Invertor works please brief.   5
STATE AND EXPLAIN SUPER POSITION THEOREM. ABB 2
there is a # KVA Transformer of 11 KV/440V, in simple(not use formuia) how can you calculate it's HT & LT side current.   4
Why armour HT XLPE power cable required to Earth?   1
why the field winding of synchronous machine is excited by dc source   2
Why different types of connection in transformers are used? (star/star,star/delta,delta/star,delta/delta)Why we are only taking in consideration of star/delta type transformers? if only star/delta is good in practice where doses other type of transformers are used? Note: i want to know place of using different types of transformers other than Star/delta type with brief description.   1
what is the principal of star delta starter?   7
What is the full name of one of choke less lamp BLL   2
 
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