Answer / ashish

a breaker has a fixed and moving contacts.
after closing of the breaker the resistance between
this contact is called breaker contact resistance and its
value is in few micro/milli ohms.

Answer / hiranmoy chatterjee

Contact resistance of SF6 CB will be less than 40 micro ohm.

why we use to transmit the power in three phases intead of single phase ?

4 Answers  

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can you tell me/show me, how to manually synchronize 2 DG. preferred with video.

2 Answers   Cummins,

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what is specific gravity of a battery if specific gravity increase/decrease,what will happen to the voltage/current of the battery

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difference between dol and rdol startors?

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Why hydropower stations are preferred solution for meeting peak loads in grids?

0 Answers  

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whati s the sludge current in ups

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What the formula for calculating no.of earthings & size of earth strip for 100mX90m shop.

0 Answers  

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corona happens more in summer or winter?

3 Answers   MAHINDRA,

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How can we convert 11 kv to 440 volt without using transformer ?

0 Answers   Electrical,

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what is the minimum winding resistance of 30hp compressor, to run or to switch on

0 Answers  

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why does the magnetic balance tests at transformer?

0 Answers  

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What is the difference between phase current & line current, how both can be measured in star and delta system

9 Answers   Doshion, MIT,

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