How to put breaker in service / test position.

1 Answers   KSEB, L&T, Siemens,

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why the emf of a cell more than the terminal voltage when the cell is delivering current?

4 Answers  

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why capacitor takes more current

4 Answers  

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Rotor resistance starter is used to obtain= A increased starting torque B decrease starting current C decrease starting loss D increase efficiency

1 Answers  

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Explain REF protection and sbef protection in transformer?

3 Answers  

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Whether power factor should be high or low? Why?

0 Answers  

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why sometime we get electrical shock while touching the ballon of dish tv connection ? which we should not get.

0 Answers  

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What is double throw isolator and single throw Isolator.

1 Answers   KSEB, L&T, Siemens,

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If the supply voltage is same (say 440V) whether a system designed for 60 Hz frequency will work with 50 Hz frequency or not , if so pl. give clarification.

11 Answers   ABB,

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ple send to the how to improve the efficiency & economical to the thermal power plant

1 Answers  

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what is international rules of electrical?

5 Answers   Essar,

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Should transformer earthing pit, to be connect to earthing mat in Substation

4 Answers  

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