What is the difference between the watt hour meter and Var hour meter in terms of internal connection and work theory . ie "When the meter records watt-hour an when the meter records var hours ??"

13 Answers  

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could an induction motor be used for regenerative braking in electric-train control? in this type of application would some scheme have to be devised to obtain low synchronous speeds while braking? would induction-motor drive, therefore, be suitable for passenger service?

0 Answers  

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Is earthing done for AC or DC or both?

6 Answers  

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how to find number of run for transformer & alternator secondary side? give the example.

2 Answers   Powergear, Regen Powertech,

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what is meant by neutral Ct of a transformer and how it connected in transformer

4 Answers  

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Which is remain unchanged in transformer action?

6 Answers   NTPC,

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In MEP Services what are parts of STP and what are there function?

0 Answers   Tenon,

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what is the ground fault relay,which purpose it will be use,clearly tell me plz

0 Answers  

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what is difference b/w HT & LT and the range of HT & LT ?

22 Answers   AF, Schneider,

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i am working in a grid substation,TNEB having 13 yrs experience. Am I eligble to get apply for c licence now?

3 Answers  

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how we can convert 3 phase to single phase without using any transformer

8 Answers  

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what is appearent power?

3 Answers  

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