Why R ph of Hv and Lv is shorted or joined together while taking vector group?

1 Answers   IOCL,

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what transformer we used normally and upto which kva?

0 Answers  

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why dont we use the same pylon to carry 400 kv plus 220kv and 33 kv ?

2 Answers   Focus, Focus Energy,

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What will happen to the protection and metering, if the polarity of a single or two PT/PTs in three phase system is reversed? Please provide reference if any.

0 Answers   Mind Tree,

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what is carona and how is occur?

5 Answers  

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what is the gas pressure at normal & operating conditions of sf6 cb??

2 Answers  

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What is LT Breaker Panel?

1 Answers  

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Why two nos. un-tensioned wires are placed inside the PSC poles used by powergrid in RGGVY works.

2 Answers   Bhel, Power Grid,

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In a incandescent bulb, if the glass is punctured, and then power is supplied, the tungsten filament blows up with a flash.Why?

2 Answers  

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Why does amplifier gain reduce?

0 Answers  

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what is necessity of using isolation transformer?

4 Answers   NTPC,

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why we create vaccume in transformer tank before oil filteration?

3 Answers   CG CoreEL,

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