How to synchronization will be done between two DGs ?

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diff b/w normal grounding and resistance grounding

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1.why should we connect the measuring instruments in l.v side in short circuit test of a transformer? 2.why the power factor is less in open circuit test of a transformer?

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In a voltage-controlled current source A A current booster is never used B The load is always floated C A stiff current source drives the load D The load current equals Isc

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Am i eligible to get electrical supervisor licence? As i did diploma as well as degree in Electrical Engg. in June 2011. Now i am working in 15 MW Power plant from 2 mnths. i belongs to Maharashtra.

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how to select the cable size? any formula to calculate cable size?

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what is the formula for converting KW into KWH ?

3 Answers   Blue Star, Essar,

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what is the difference between bus-coupler and bus-riser

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please explain to me how to calculate current,voltage,resistance with formula??

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No load tap changing transformer working

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expalanation for 5p10 class.

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in a distribution board,if we have a load and we have selected a cable after making all calcs (Deratings and V.D , ect...) the cable we have selected was 10mm.sq. now, shall the internal cable inside the switchboard should be 10 mm.sq Like the external or it can be Less???? if somebody have an specs or information he can help D:

1 Answers  

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