What is oil temprature with A/T contacts in Transformer ?

1 Answers  

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how we decide the require size is this for a known current at fuu load?

0 Answers  

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I know during Surge Impedance Loading maximum power is transferred through a transmission line and also Sending end voltage becomes equal to Receiving end voltage i.e Vs=Vr so my question is if both end voltages are equal then how current travels in such line hence how power is transmitted because flow of current needs Potential difference??

3 Answers   NTPC,

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i have 6oo kva dry type transformer and its neutral is not grounded even body of transformer ground i want to know it is safe or not ?

2 Answers  

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what's the meaning of the negative going half cycle in the circuit containing a bulb and a switch in series with a input ac source. i mean what happens in the -ve cycle. the dir. of current changes or any other thing. if dir. changes then why we use fuse in only phase wire.

2 Answers  

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WHAT IS THE ANALYSIS OF FREE WHEELING DIODE IN FULL WAVE CONROL RECTIFIER?

1 Answers  

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Why the high starting current does not harm the low capacity induction motor?

1 Answers  

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Why we are using only Dyn11 tranformer in distribution system but not using a Dyn1 in distributing system?why not and advantage and disadvantage in both

0 Answers   Jindal,

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Whether the vacuum contactor requires Short circuit protection?If No,why?

0 Answers   Reliance,

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What is Generator Protection & Transformer Protection?

3 Answers   Areva,

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why odd hormonics only will effect the power system.why not even hormonics

1 Answers  

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A cable with concentric PE conductor must be used with frequency converter circuits what does its means.?

0 Answers  

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