Answer / fahim

oils used in transformers are synthetic oil, edible
oil(vegetable oil), mineral oil, silicon based oil.

Why the bypass and blocking diodes are used in solar modules?

1 Answers  

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why we use two slope(differential & restraining) in differential relay.but in busbar protection differential we are using only one slope?please explain

0 Answers   ISRO,

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sir i am fresher.can you please tell me how can i get certificate of competency as electrical supervisor.

1 Answers   ONGC,

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i need to calulate the cable size when watts are mentaind wat z the formula

1 Answers  

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What is PF? Formula for calculating PF in HT side?

10 Answers   HSL,

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Define Current Transformer? Working & TYpe's Of C.T.

4 Answers  

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What is the Efficiency in Electric motor ?

2 Answers  

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What is the difference between magnetic loading and electric loading of a machine?

2 Answers  

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Grounding. Dear all at one of my site we checked the amps at the earthing cable to the alternator it was found 125 to 130 A. at the neutal cable in same machine found 146A. in the same plant checked the earthing current on other alternator it was 52A, and neutral 116 A. we are facing problems with our controller and the card was damaged once. can that neutral/GND current be a reason? as there is common grounding for the Alternator,Brkr panel,Transformer?

2 Answers  

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why dc is not given to transformer

4 Answers  

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what is tandem isolator ??????????

5 Answers  

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can volts/Hz be relied upon to use 460v,60Hz electric motors on a 380v,50Hz power supply?

1 Answers  

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