Answer Posted / yk

KVA RATING WILL CHANGE PROSNALY WITH FREC IF FREC IS
DECRESED VOLTAGE ON TERMINAL WILL DECREAS AND IF CURRENT
KEPT CONSTANT KVA O/P WILL DECREAS . IF CURRENT IS NOT
CONSTAN THEN FOR SAME KVA CURRENT WILL INCREAS AND
TRANSFORMER WILL BE OVER LOADED .

DIFFERENCE BETWEEN NORMAL TRAFO AND THRISTER TRAFO?

2661

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what is formula for zero phase sequence of nuetal earthing transformer of 6.6 kv

2344

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why we use copper earthing for neutral while for body GI.

6231

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The size and construction of bushings in a transformer depend upon?

1830

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what is current check gurd relay?

2649

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What is load boxes ?

2217

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what is the relation between knowing of the distance between power transformer and the capacitor feeder in case of parallel operation

2044

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What happens if i apply 500V to 440V rotary Switch ?

1887

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What is meant by Low Resistance Cable and High Resistance Cable.

1959

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what is the difference between elcb and rccb ?

2425

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is that a problem if i connect a single phase load to a secondry delta connected transformer but i get a neutral from other transformer i the system?

1908

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Distribution transformer we provided 2 separate earthing pit for Body and 2 separate earthing pit for neutral,we can not connect separate body earthing pit to other earthing pit but we do metal glanding in secondary side cable termination in both side, transformer and PCC panel (LT Panel), is this safe for transformer and other equipment?

1771

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Practical condition in 400KV Sub station:- Breaker(open) , isolator(open), Earthing (close) at both end e.g A & B. Now Open A Stn Earthing than Open B stn Earthing (Which have a 50MVA reactor) , AND suddenly show R,Y,B phase 704KV,573KV,118KV respectively. Que is without closing of breaker how it is possible.???? My Whats app No:07621840498 for Further Discussion. Pls experts suggest.

2144

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orifice sizing how done, checking & selection

2018

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What is the importance of earthing?

1157

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