vikas singh


{ City } jamshedpur
< Country > india
* Profession * resident engineer
User No # 44177
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Total Answers Posted # 2

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Questions / { vikas singh }
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Answers / { vikas singh }

Question { 11327 }

Transformer not operated in dc ! why?


Answer

Trnasformer winding is induction in nature. Inductive
reactance XL = 2*pi*f*L. Since for DC f=0, so XL=0 then a
high current will flow since the reactance is 0 which will
dmage the winding.

Is This Answer Correct ?    3 Yes 1 No

Question { Focus, 31696 }

How much current can a 3-1/2 core 100 mm wire carry?


Answer

Normal current which a 3-1/2 core 95 sq.mm PVC insulated un-armoured copper conductor can carry is 210 Amps and for Al conductor it will be 165 A.

Is This Answer Correct ?    10 Yes 2 No