what is difference between sub-station and switch yard.

16 Answers   Bhel, Ravate,

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Why power factor should not be in leading (capacitive) mode of any load.

3 Answers   GE,

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In n high voltage 11kv system What happened if 1 of CT cable (IDMT) loose.Will e/f or o/c trip.please explain detail

1 Answers  

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I want to know which cable would be best to carry 125A current to a distance of 50m. Voltage is 3phase. Kindly share the formula with answer.

1 Answers   Medway Educational Consultant,

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what does the regenerative braking mean?and how it used for Dc motor? thanks.

2 Answers  

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if the armature current in a dc generator is ac ( sinusoidal ) why doesnt the sjhape af armature mmf a sinusoidal (ni) ? armature mmf in case of a dc machine is triangular.

0 Answers  

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Frequency in the control system represents? Continuous system in time domain ? In frequency domain?

1 Answers   CCP,

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what is the basic difference between capacitor and condenser ?

17 Answers   ABB, Essar,

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Does increase or decrease of reactive load affects the Voltage.

5 Answers   Nalco,

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How halogen & merquery lamp works.

0 Answers  

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what is the last range of mccb in amp?

2 Answers  

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pls send previous bhel electrical papers

0 Answers   Siemens,

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