why we used dc supply for field in dg set

0 Answers   Hindusthan National Glass,

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a transformer can have zero voltage regulation a)o pf b)1 pf c)lagg pf d)lead pf

2 Answers   SJVN,

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I want to calculate how much capacitor we connect to maintain the unity power factor? Is there any formula? Pls give me the answer

0 Answers  

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WHY EARTHING NOT NEEDED IN BATTERY IN SUBSTATION?

5 Answers   L&T,

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What difference between MCB,MCCB,RCCB,ELCB please explain briefly with its rating.

3 Answers  

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what is the working principle of smoke detector in fire alarm system

2 Answers   Vijaya Bank,

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how we can improve P.F. by using capacitors ?

22 Answers  

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why are using bus ducts ? why not using cables

12 Answers  

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please give me solution to rectify the emi(electromagnetic interference)

0 Answers   Powergear,

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what are the basic concept to design a out door Substation?

1 Answers  

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flush point of transformer?

2 Answers  

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difference b/w semiconductor and dielectric

2 Answers  

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