why to use freewheeling diode ( diode in revers bias mode) across dc coil

2 Answers  

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what is the purpose of battery tap voltage.

3 Answers   ABB, Crompton Greaves,

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my motor rating is 800HP, 128Amps, 3.3kV. What is capaitor bank i can use for PF improvement to 0.990?

3 Answers  

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What is the relay function?

2 Answers  

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any one can explain the stages of a knee point which is taken during ct magnetising curve.

0 Answers   Tata Steel Limited,

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Differentiate between digital phase converter and ordinary phase converter.

0 Answers  

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wat is the role of reactive power in power generation?why we have maintain it.

3 Answers  

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hi if anybody got model questions for cpcl Grade'A' electrical engineer position.send it to my mail please krishkumar22@gmail.com

0 Answers  

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why we ht line cable size small rather than lt cable.

4 Answers   Aster Teleservices,

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which metal is use in shunt

4 Answers  

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How to get a multiplier in 11kv energy meter?

1 Answers  

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Why no-load primary current is very small as compared to full load current in transformer (as 1% of full load current?

5 Answers   NTPC,

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