why transformer has more efficiency compare to rotating machine?

3 Answers  

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what is AVR and tell principle and working?

10 Answers   ITC Infotech, MIOT Hospitals, YCC,

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What is meant by Active and reactive power?

5 Answers   Siemens,

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wat s the electronic device used in the fan regulators recently?

2 Answers  

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when we given 3 phase supply to ups system, but out put comes with 3 phase + neutral how it possible? pls explain.

3 Answers   Enzen, Juniper Networks,

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Why ct secondary is not kept open while primary charged. Answer in terms of ct parameters.

4 Answers   Power Grid,

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What is the allowalable frequency variation in India and in US? Why there is the difference?

3 Answers  

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The corona effect is more in a) summer b) winter c) dry weather d) humidity weather

10 Answers   CPCL,

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why put integration for capacitorand differation for inductance

1 Answers  

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toughest decision you ever had to make

1 Answers   Infosys,

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What is Partial Discharge test .Please specify that this test can be test on 11/0.433 KV,630 KVA Transformer.

1 Answers   NBCC,

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now-a-days which devices are using for converter

7 Answers  

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