what is the safe meggar values for motor, transformer HT, LT and Cables?

12 Answers   IOCL, Jindal, TATA,

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which is better VCB or ACB and why?

7 Answers  

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we have a 2000kva step down transformer at our site. The HT side is charged from 22000V. So the primary current will be 52.48A. So why the HT breaker(SF6 ABB) is rated of 1250Amps ?

2 Answers  

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We have isolation transformer 25kvA & ONLINE UPS 15KvA (3PHASE I/P,3PHASE O/P)where isolation should have connect,before UPS or after please brief.

1 Answers   DRJ ARDE,

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what is sevice settings for mccb?How can be it setted?

1 Answers  

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what is the chiller and working principal

0 Answers   Blue Star,

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400 kvtransmission lines in india are connected in star or delta

10 Answers   NTPC,

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why nutral and earthing wire connect with each other in main panel board.

2 Answers  

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any body know about lighting arrestor. how to determine the height of lighting rod from top of bulding and how many area it cover.

1 Answers  

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Can anyone explain me about the RLC based Impulse high voltage generator and how to and operation of Series resonant High voltage reactor...?

0 Answers  

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why transformer does not obey ohm law?

27 Answers  

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what are the duties of commutator in motor and generator?

6 Answers   L&T,

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