what is "pu" in electrical engg.

4 Answers  

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if 2 coil of 1000W connect in series and 200 v is applied across it . then what is the total power of coil when coil have only resistive load .

1 Answers   BSNL,

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What is defference between earthed and unearthed cable(HT)? Which is better for under ground cabling?

1 Answers  

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difference between local breaker backup relay or backup protection relay ?

1 Answers  

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where to use CT and PT?

4 Answers   CEB, Reliance,

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if we have a industrial load of 400 kilowatts with 415 volt AC then how much total harmonic distortion (thd%) should be acceptable for steady power system.

0 Answers  

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How should i design a 1ph & 3 ph transformer. Kindly let meknow all steps and formulaes related to design from scratch.

0 Answers  

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is high voltage or high current is danger

16 Answers   L&T,

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WHY DO VOLTAGE TRANSFORMERS FAIL DURING EARTH FAULT IN THE DELTA CONNECTED 6.6KV ELECTRICAL SYSTEM

0 Answers  

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why skin effect is decreases with decrease with frequency? why skin effect occur

5 Answers   Kirloskar,

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what is the difference between potential transformer and capacitive voltage transformer?

1 Answers  

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what is relay

8 Answers  

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