Answer / santosh

When electrical energy is converted to mechanical energy m/c acts as a motor& when mechanical energy is converted to electrical energy it acts as a generator. This is the basic principle. As far as induction motor is concerned what mentioned above is true.

Answer / shahbaz sahikh

when yhe slip is possitive at that time machine acts as
motor as s=(Ns-N)/Ns and when slip is negative acts as
genrator.

what difference between tapping -15% to +5 % and -5% to +15% tap. & how can define HV turns on maximun & minimum tap of power transformer.

2 Answers  

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What do you mean by PT-100?

8 Answers  

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why when i start my diesel generator it takes 1 minute or less then stop, and i checked the oil sensor is ok and when the generator start i can get 220 voltage but it it is stop after 1 minute or less, how can i solve this problem?

1 Answers  

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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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1.What is captive power plant? 2.What is national grid?Give brief idea.

0 Answers  

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Why does the adjacent zone of protection overlap?

0 Answers  

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difference between generator and alternator

0 Answers   Havells,

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While performing load test on DC SERIES MOTOR, does the voltage decrease slightly. Why?

2 Answers  

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why synchronous motor has zero starting ?

8 Answers   NTPC,

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how much current does 3ph a.c & d.c motor drawn.Plz. provide formula with example.

5 Answers  

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how to caluclate cable size by Amps

2 Answers  

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why voltage ratings of xmission are in 11, 33,66kv and why not 11.5 ,16,19 or any other

2 Answers   HCL,

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