Why there are semi conductor layers on conductor and XLPE insulation of HT cables

1 Answers  

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what is earth-fault?when it occurs? to check where it occurs what type of test should we do?

0 Answers   ONGC,

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what happen if i connect DYn11 and DYn1 vector group transformer in parrallel?other things are same like votage ration,x/r ratiob etc...

4 Answers  

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Difference between ELCB and RCCB?

5 Answers  

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What will happen to the protection and metering, if the polarity of a single or two PT/PTs in three phase system is reversed? Please provide reference if any.

0 Answers   Mind Tree,

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In synchronization circuit what is the function of Interposing voltage transformer(IVT)and Reverse voltage transformer(RVT)

0 Answers   ABB,

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how to arrange the generator protection ansi 48 (loss of phase?)

3 Answers  

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what is tertiary winding in transformer?What is its purpose?

18 Answers   Bhel,

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What is a soft start?

2 Answers   Bhel, jlpl,

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Explain the operation principle, advantages and disadvantages of the following converters: a) A 12 pulse converter b) A Switch-mode inverter c) A thyristor inverter

0 Answers  

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how we can save electrical energy in industries,please give some inputs

3 Answers  

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Wy transformer ratings are in multiple of 11 always?

2 Answers  

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