how we can know the rating of transmission line by no. of insulators disk ??????????

3 Answers   NTPC,

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Why the brushes used in dc machines are made of carbon not from other metal?

3 Answers  

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Why an ac systems are preferred over dc systems?

0 Answers  

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explain the function of brush less dc motor?

0 Answers   Bhel,

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Is there any difference between load based power plant and coal based power plant?

1 Answers  

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how much amp MCB is required for 1/2 kva power back up?

2 Answers   Havells,

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How amny AH battery required for 600va inverter ?And how many hours it will give backup for ceiling fan ?

3 Answers   HCL,

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how to measure the dc current?

3 Answers  

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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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How to calculate the efficiency of Turbo Generator(Alternator) in general....?

0 Answers   Thermax,

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What is percent age of scrap of wires as per IE Rule Clause No in wiring for House and Industrial wiring ?

3 Answers  

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state the functions of different parts of star delta starter.

1 Answers  

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