Why neutral has to switch on-off with phase in TN IT TT systems i.e neutral should be taken as fourth pole

1 Answers  

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How to calculate VCB rating for 33KV ,25 MW Power line?

0 Answers  

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Upto what extend the powerfactor of a supply system can be improved to be cost effective?

1 Answers  

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why it is not advisable to run low rating (19KVA) DG sets in parallel for long durations even though they are provided with droop ckts (QDC)

0 Answers  

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pls tell me function of closing coil of A.C.B.

0 Answers  

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How many homes can a 500kva transformer supply in S.A

1 Answers  

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Is it a better option to procure screw type air compressor rather than reciprocating air compressor?If so, what is the reason?How should we select an air compressor(100 CFM)? Please mention the important parameters of air compressor.

0 Answers  

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How to know about the rating(voltage and other) of induction motor if its name plate is missing at the manufacturing site.

0 Answers   ABB,

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What is the need of black rock stones under the transformer yard?

5 Answers   TNEB Tamil Nadu Electricity Board,

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WHEN WE TOUCH THE BOTH TERMINALS OF BATTERY WHY NOT THE D.C BATTERY GIVE US SHOCK SUCH AS A.C SUPPLY?

3 Answers  

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Is there any option to replace two Genset of capacity 125KVA with one higher capacity for same office?

8 Answers  

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Why a single-phase induction motor not an inherently self-starting machine?

11 Answers   ETC, Hindustan Shipyard,

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