Answer / j.prakash

Transformer is static device there is no any rotating part
so there is no any friction losses, only iron loss and cu
loss in transformer, iron loss depend upon the voltage and
cu loss depend upon the current, there in no any loss which
depend upon power factor,so rating of transformer only in
kva.SO NOT IN KW..

Answer / narendra

the transformer rating in kva.the substaion step down or
step up the voltage the current will be constant

Answer / sunil bhuarya

above answer is correct if we talk about transformer, but as question is why s/s in kv....?? transmission capacity of incoming feeder is named as 400Kv, 220KV 132KV and so on...
for ex. in 220KV/132KV/33KV s/s there will be at least one /two 220Kv line and 132KV outgoing feeders that may be depend on the requirement..

Answer / k.prakashchandra

The structure and insulation levels of materials used are
designed on the basis of system voltage which remains unaltered.

What is Primary and Secondary Injection Test of CT and Relay.

2 Answers  

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what is the use of earthing?

1 Answers   CPCL,

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y we use neutral,all r told its used to for closed path..k its a just used to closed path,in a transmission line y we put same conductor used n both phase and neutral..if we use less than phase conductor in neutral mean we ll reduce cost its right r wrong..if we use mean any problem occur in transmission line..

0 Answers   ME,

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what is fundamental difference between voltage and current

5 Answers  

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what's the exact magnitude of current, flows through Neutral?

0 Answers  

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How would you supply power to a village which is very far from a sub-station and has only a 11k?

4 Answers   Power Grid,

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how much cable size required for 70 kilowatt load.

0 Answers  

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what is the formula for calculate the turns in Transformers

2 Answers  

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what is the function of breather in a transformer

29 Answers   Areva, Bhel, RKM Powergen, Vijai Electricals,

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what is pulverisation

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What are steps to be taken while designing of DYN11 distribution transformer to achieve magnetising balance?

0 Answers  

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how to select diiferent power transformers of same capacity on no load loss and full load loss by economical point of view.?

0 Answers  

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