what are the duty ratings in DG sets?

1 Answers   L&T,

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What makes the difference between 50Hz supply and 60Hz supply which one is economical? What is the use of using increased frequency?

5 Answers   ABB,

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Classical power system stability was mainly focussed on rotor angle stability but modern power system stability has more focus on voltage stability.Why?

4 Answers  

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How can we measure earthing resistance test (Earth meggar) of Transformer neutral pit while in live condition?.

0 Answers  

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what will be the effect if we increase the excitation of a alternator??

3 Answers  

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why celing fan is running in anti clock wise and table fan is running in clock wised?

2 Answers   Ambuja, Infosys, MAHINDRA,

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After synchronization with grid how to maintain the power factor in lagging or in leading? if lead of lag what is the problem?

3 Answers  

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hwat type of motor is used in thermal gas turbine hydro nuclear power plants and why

0 Answers   Bhel,

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75 kw motor take 45 amp in no load delta in star 10 amp but in load it will take 160 amp but IR velue of winding above 500 at 1kw ph to earth and ph to ph. what problem it should be?

0 Answers  

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what is difference between Motorised MCCB & ordinary MCCB?

4 Answers   TCL,

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why ten delta testing is carried out on power transformer

0 Answers  

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Difference between ac parallel circuit and ac series circuit?

0 Answers  

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