Why an ac systems are preferred over dc systems?

0 Answers  

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What is min and max voltage between earth and neutral/phase if it perfect earthing?

37 Answers   Epoch, ISS, ITC Infotech, L&T, Power Works, Statex, Sterlite, Wipro,

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What is the difference between KW & KVA ?

9 Answers  

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How to select a cable size for particular load?

0 Answers   Amit Enterprises, Takasago Engineering, Techno Electric and Engineering,

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WHAT IS THE USE OF EARTH SWITCHES?

3 Answers   L&T,

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Amoung all classes of electric machines, why the transformer uses oil as one medium of cooling?

4 Answers  

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What is the dependency of stiffness on load angle??

0 Answers  

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what is the difference between squirrel cage & slip ring induction motor by construction & working principle ?

1 Answers   Sail,

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which pole motor is best ?4 pole motor or 6 pole motor,why?

2 Answers  

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impliment (AB)`+C to transistor representation

0 Answers   Ascent,

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Tell me all plants load factors i.e which plant operating on which load?

0 Answers   Bhel,

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which calss ct's,pt', use protection,meatering and others

1 Answers  

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