Why should we use the igniter in the sodium vapour lamp.

7 Answers   ABB, Delphi, Mudhra, NTPC, PICT,

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What are the difference between C-Curve and D-Curve for MCB's.

17 Answers   ABB, DLF, Essar, GK companies, Nissi Engineering Solution,

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In Energy meter How many rotation Equal to one unit.

3 Answers  

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what is the difference between switchgear and circuit breakers and is there any difference between outdoor and indoor switchgear and circuit breakers , and how would you differentiate between switch yard and substation and grid station . thanks

0 Answers   ABC,

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In constant power region of 3-phase IM torque-speed characteristics, if frequency increases slip A does not alter B decreases C increases D none of above

0 Answers  

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why most of junction box vendors providing T5/T6 Temp class jb's for T3 area any special reason?

0 Answers  

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How to calculate PF capactors for a connected load?

2 Answers   FD, Power World,

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WHAT IS MEANT BY SYNCHRONISING IN GENSETS

5 Answers  

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how we identify AC or DC machine at the time of seeing, with out use of name plate?

4 Answers  

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what is meaning of AMF, WHY IS USING IN GENSET

1 Answers  

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What are instrument transformers?

6 Answers  

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30 kVA and voltage 380/220VAC how to find out kA?

5 Answers  

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