what is electric current

17 Answers  

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In a 11KV 3phase system do you need to earth both sides of the cable?

2 Answers  

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why Power transmssion voltages are as 11kV,33kV,66kV,220kV and so on only?

2 Answers  

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how to reduce the transformer size in ups ?

2 Answers  

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How is the AVR working?

1 Answers  

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What is the purpose of reactor in over head transmission line.Can you any explain it.

2 Answers   Dr Reddys, L&T, Reddy Labs,

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in the directional overcurrent and earthfault protection,normally we are setting the angle 45 deg lead for phase fault overcurrent and -45 deg lead for earthfault fro forward direction.but both the fault are operating on the same angle region only.why?how the relay will response?

0 Answers  

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The coils having selfinductancs 10mh and15mh,effective inductance 40mh when connected in series aiding. what will be the equivalent inductance if we connect them in series opposing?

1 Answers   BSNL,

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What are the advantages & disadvantages of a group electrive drive?

0 Answers  

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The inexpensive way to improving energy efficiency of a motor which operates consistently at below 40% of rated capacity is by _____.

2 Answers   IFFCO, Sanmar,

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Explain the working principle of servomotor

20 Answers   ABB, Bhel, FANUC, GE, Jindal Steel and Power, L&T, SIA, Steelco Gujarat Ltd,

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wich timer i have prefred for pusher operation fwd & back?

2 Answers   AluChem,

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