Why compensation is necessary in feedback control system?

0 Answers  

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why HT voltage rating in multiple of 11

12 Answers   ISRO,

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3Cx240 & 3Cx300 sqmm Al. cable from lv side. What is the calculation for this cable??

0 Answers  

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How does frequency affect KVA rating of a transformer? If a 500 kva, 500 to 250 v, 60 hz t/f used in Canada is to be operated on 50 hz in Europe frequency then how will its KVA rating change? a-increase b-decrease c-remains same

1 Answers  

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what are the protections used in power transformers of 5 mva and above

2 Answers   ESRI,

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what is the difference between synchronous generator & asynchronous generator

4 Answers   Reliance,

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the input mechanical power of a single alternator is increased,its RPM increased but in case of an alternator synchronised with grid its RPM does not increased with increase of input mechanical power. why?

3 Answers   Bhel,

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installation of subsatation of33kv

0 Answers  

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what is reactive power (MVAR) and how it is control? how it is generate in powerplant?

1 Answers  

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what is motor contrl center .

3 Answers  

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what is the working principale of air circuit breaker ?

5 Answers  

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how the earthing point or earthing is taken for ships and airplanes?

1 Answers  

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