How much min BDV of oil in transformer is required when charged it first time in 11kv, 66kv and 132 kv of transformer?

A Rudrendra

• Jul 15th, 2016

It should be minimum 54KV

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Why making capacity of the circuit breaker is higher than breaking capacity?

rajashekharreddy

 Profile Answers by rajashekharreddy Questions by rajashekharreddy

• Dec 4th, 2009

Making capacity is the max fault current it can carry during closing of breaker, e.g. You are closing a breaker on fault. The making capacity is always higher because it is expressed in peak value not rms, and also because of the DC offset, voltage and PF while closing

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How can we find u1,v1,w1 and u2,v2,w2 in three phase motor when operating in delta as we have on identification on motor lead which comes out from winding.

siddharth

• Jan 27th, 2015

P=VI,
V=I/R,
cu.losses=I*I*R

bineet

• Jan 4th, 2015

How to check the Windings of a 3-Phase AC motor The rotor of a squirrel-cage motor There are several different AC motor types, each one with different operating and mechanical characteristics. The mo...

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