what is Harmonic effect?

2 Answers  

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will we have to design the UPS differently for both i.e. if we want to connect the two batteries in parallel and/or we want to connect the two batteries in series ?

4 Answers  

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how to calculate cable size for the motor

2 Answers  

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How to work meggar?

0 Answers   Anand I-Power,

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how to save the power?

2 Answers  

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how we select the mva rating of the circuit breakers?

1 Answers  

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What is the need of earthing transformer for delta side of a transformer. (Think of a line section between a star/delta transformer at a grid substation and delta/star transformer at a village. An earthing transformer is there at the delta side of the star/delta transformer at grid substation). As there are no ground reference there will not be fault current if a one phase is grounded. Further L-L phase will be sensed by the primary side of star/delta transformer as a L-G fault. So why an earthing transformer is required at delta side

0 Answers   CEB,

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wath is skin effect?

9 Answers  

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Has someone here done a sizing for a generator (3 phase), its for a pumping station. If you have an example for standby/duty and both running (I) star delta (ii) Soft Starter.

0 Answers  

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prefer any good electrical engineering book.....it should be useful in the practical fied?

1 Answers  

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what should be the minimum rating for using HT Motors?

1 Answers   BSL,

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WHY THREE PHESE SYSTEM VOLTAGE APPLIED IN 440 VOLT

0 Answers   Infotech, InTech,

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