why should we place 9KV lightning arrestors in 11KV substation ?

9 Answers   DOL, ISRO, Matrix,

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What is the name and type of power transformer oil?

4 Answers  

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now-a-days which devices are using for converter

7 Answers  

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how to interlock 2 incomer,1 buscoupler MCCB,like we interlock an ACB... pls answer this question and if possible send me the ckt diagram..

2 Answers  

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what is the CT & PT. where is it uses.what is the using that plese kindly answer me...?

4 Answers   Cap Gemini, JLL,

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how much GROUND & NEUTRAL VOLT maintain in data center.

0 Answers  

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What is reason of rating of transmission line multi pal of 11 like as 11/33/66/220 ? Why not use 75 kv 23 kv line in power system ?

1 Answers   Apollo, Balco, Bhel, Vardhman,

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What is high frequency grounding????Applications........

1 Answers   Emerson,

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Why transformer rating in kVA not in kW?

5 Answers   ABB,

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Why we use DC for charging of Batteries??Why not AC Supply???

6 Answers   Emerson, Infosys,

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WHAT IS THE COOLANTS IN TRANSFORMER?

7 Answers   Bhel,

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what are the protection for DG set and why?

2 Answers  

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