Answer / guest

these wdg r used to minimize the commutation effect.

why we use post insulators in no ofstacks at substation for supporting equipment ? why we not use single post insulator

3 Answers  

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how to calculate Transformer loss?

1 Answers  

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heat can flow from a body at low temperature to a body at higher temperature only when ........ is supplied from an external source A). Voltage B). Current C). work D). Mass

7 Answers   BMRCL,

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how fluoresent lamp works??

2 Answers  

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an amazing situation was faced when an alive distribution panel with 415 volts and carrying almost 200Amps has become short and this metal cubical showing 220 volts against neutral and earth. to redress any confusion i checked the panel with help of single 200watts test lamp which also glowing with max.intensity b/w neutral & metal body of DB. amazing situation is that i hold the DB firmly more than once with necked foot means without insulated shoes but not received any electrical shock. whereas our all running gen sets neutral points also proper grounded and this short DB was completely earthed , this is beyond my understanding . any body explain how is it possible . our running gen set neutral also grounded firmly

1 Answers  

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We use ACB in LT and VCB in HT.But if we use VCB in LT and ACB in HT that what will be the effect on the system or any power range?

6 Answers   Honda,

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how we identify between current transformer and potential transformer without having it name plate?

5 Answers   L&T, TATA,

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what is the IPC ? & what the uses ?

0 Answers   Bhel,

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1.what to do if ferquency of any power system continue to decrease ?

5 Answers   NTPC,

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why earthing point in the 6amps/16amps socket bigger than the remaining (Phase & Neutral)points.

1 Answers  

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two generator runnig with parallel but only one NGR on And one off Why

1 Answers  

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why do we use star-delta starter. what is its need?

6 Answers  

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