why we are testing cables with DC supply not with AC supply?

9 Answers   Aurobindo, DEWA, L&T,

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List some examples of renewable energy?

0 Answers  

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Is C.T will sense the current in both direction. As i know the C.T will sense the current in only one direction.

2 Answers  

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What is the working principle of MIG welding? and its out put Voltage?

0 Answers   L&T,

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What happens when DC supply is given to transformer

4 Answers   CESC, IBM,

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WHY RATING OF VCB NOT LESS THAN 630A

0 Answers  

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why the tapping of transformer on ht side??????

12 Answers   CTS, OPTCL, Visa Steel,

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What happen in ups if phase reverse?

0 Answers  

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how the 12 pulse rectifier is made?

8 Answers   Engineers India Limited,

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How seriving & testing of the HT & LT breakers are done. What are the standard Ir values on which we can come to know the test is passed or failed?

0 Answers  

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Determine the minimum cable size for a 28A single phase final sub circuit originating from the distribution board supplied by three phase submain. The route length of the final sub circuit is 54 m. Assume 1% voltage drop in the consumer's mains. Submain specification: Cable: 50mm2 4 core V75 copper; Route length 42m; Maximum demand 135A per phase

1 Answers  

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if HT side voltage is high current is low . and LT side voltage is low current is high please explian.

5 Answers   HP,

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