if its possible for step up or step down DC volage directly ? possible means how we can do it ?

5 Answers  

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why do we need transformers?

12 Answers  

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i want bhel placement paper for electrical if anybody having pl send to my id kavitha867@myway.com immediately

0 Answers   Bhel,

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What is the difference between Zero Current Transformer and Core Balance CT ?

1 Answers  

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what is "pu" in electrical engg.

4 Answers  

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Where the ON LOAD TAP CHANGER is provided in the setp up transformer?

2 Answers  

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On which side, taps are provided in tap changing transformers and why?

2 Answers  

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what is the power ratio between power in star and delta circuit?

3 Answers  

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what is the meaning write of AC1,AC2,AC3 .....power contactor

7 Answers   ABB,

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first 3 men were there .again 3 came.total how much?

11 Answers   Wipro,

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What is potientometer.How it is useful in a sychronoscope.

1 Answers  

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What are methods to avoid the inrush current at the time of starting of power transformer ?

8 Answers   Wipro,

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