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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
 
Wat is the best to use in a generator a 6.5kva or a 7 kw   4
Why only three phase power generation are load are used BARC 2
How to check maintenance free battery 12V,26AH using analog multimeter   1
What happens if there is no nuetral in the power system?   4
How the CT and PT ratings are calculated   5
why HT wire making noise?   3
do we need NGR panel when the output of the genset is LV but after that it is step up to 22 kv. condition is 12 genset 400v are operating in parallel.   1
practically What is power factor   5
What is battery Limit ? NDDB 4
1.what type of wave is produced from i.online ups ii.offline ups iii.inverter.why don't we use inverter instant of offline ups for computer,what's the reason?   2
Do you know how to connect a motor of different H.Ps?   5
If one lamp connect between two phases it will glow or not?   7
 
For more Electrical Engineering Interview Questions Click Here 
 
 
 
 
 


   
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