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What is the operational principle of direct current current transformer and direct current potential transformer?if possible plz reply with ckt. diagram.

1 Answers  

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what topics we have to concentrate for power grid et.written test.and tell what to read for english synonyms and antonyms.

0 Answers  

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what is diffrence b/w -48vdc and +48vdc ?

1 Answers  

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what type of insulation is used for over head lines?

4 Answers   NTPC, WS,

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what is tan delta point in a current transformer?

2 Answers  

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how to select the rating of neutral ct with reference to transformer secondary current(in power transformer,stepdown tansformer,for example2000kva,11kv/415volt

2 Answers   ASD Lab,

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wat will be the pressure maintained inside the transformer?

2 Answers  

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what you mean by vector group of a 3 ph transformer

1 Answers  

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Why Power factor is different - different in all three phase of a 3 phase nduction motor.

2 Answers  

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what is basic difference between the normal tube light choke and electionic choke ?

4 Answers   Amaron,

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last week we did the REF relay test by closing single pole (R phase) of CB and apply 380V at the primary of delta transformer. we get 33A at the primary of the R phase star end. but we get 380A at both R an B in delta side. how and why?

1 Answers   Siemens,

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How we can design a cable for a 3phase load.

1 Answers  

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