why exterrnal C.T. protection is used even though ACB& VCB is having inbuild C.T. protection?

2 Answers  

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Why the outpet og DG is 415V not 440V?

1 Answers  

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what is circulating current in parallel transformer???plus how it is generated ???plz explain in detail.........

2 Answers  

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at what condition restricted earth fault relay will act?

1 Answers   Equate,

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why the CT ratio secondary is always divided by 5 for eg( 75/5,80/5,50/5)

6 Answers  

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How many power required for 1.5 to Airconditioner?

1 Answers   College School Exams Tests,

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how to calculate maximum current

0 Answers   Almeer Technical Services,

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why fractional pitch winding generally used in alternators?

0 Answers   TATA,

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How i can select current transformer and meters for the upgrading the panal..for 200kw to 600kw....i need to select monitoring and protection ct,s and apmpire meter ,kw meter too.

1 Answers  

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How power cable & control cable can be differentiate from each other ?explain?

14 Answers   Aster, Finolex, TCE,

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How does frequency affect KVA rating of a transformer? If a 500 kva, 500 to 250 v, 60 hz t/f normally used in Canada is to be operated in Europe on 50 hz frequency then how will its KVA rating change? a-increase b-decrease c-remains same

1 Answers  

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what about GD square and its important for motor design?

0 Answers   Innovis, MNC,

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