what is tertiary winding in transformer?What is its purpose?

18 Answers   Bhel,

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why the frequency and voltage in india is 230v and 50HZ. when compared to USA say 110v and 60 HZ.

0 Answers   Alstom,

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how we control automatic generator i'e with to supply (main supply and local generator) when the main supply was break to supply the local supply automatically to begin supplying power.I now this control circuit is the combination of contactor time delay contactor switch and overload relay .but my question is how we combine those component thank you

0 Answers  

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sir, i'm preparing for hpcl exam officer trainee pls tell me how the exam ques paper pls pls

0 Answers  

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What will happen to the protection and metering, if the polarity of a single or two PT/PTs in three phase system is reversed? Please provide reference if any.

0 Answers   Mind Tree,

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What is a fuse? How does it work? What are materials used?

0 Answers  

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is power factor correction related with vector group of transformer i.e:Dyn11?

1 Answers  

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can we use only a isolator in the subtation..

1 Answers   ABB,

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Dear Sir / Madam, Actually we requied 64 A MCB, But i have 32 A MCB = 2 No's this two i have to make series connection and we usw any place? isit possible or not......

4 Answers   Hindustan Unilever Limited,

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How can I calculate the trnaformer effciency at different loading condition?

2 Answers  

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auto reclosing scheme for radial ehv feeder is to be implemented or not?

1 Answers   State Board,

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does the Trivector Meter of three phase automatically takes care of the low power factor and gives the reading accordigly or it does not take care of the Power factor while giving the readings please explain

0 Answers  

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