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usually hydroturbines are low speed turbines.speed is 500-600 rpm and they are 10 pole or 12 pole machines

What is clean Earth System ?

3 Answers  

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how does an energy meter works?

4 Answers  

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can we run 3 phase induction motor under 2 phase supply

12 Answers  

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capacitor is load free component but why ampare meter shows current when capacitor bank breaker close?

5 Answers   Bhel, OPS,

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When the relative speed between the magnetic fields of stator and rotor does is zero under steady state operation?

0 Answers   HPCL,

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What will happen if i connect two 3-phase tranformers secondary supply on one bus bar that is R-Y-B-N?

2 Answers   GMR,

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What is the function of stater in tube light circuit?

2 Answers   SysArc,

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An 11kv system consisting of an underground cable to a sub station about 300 meters away was shut down for about 10 hrs. On energising, it tripped off on earth fault about 10---20 mins later 6 times but since than it is not tripping.its already 3 weeks now. The SPAJ was found to be fine. what could be the cause.No test had been done to determine the cause of the trippings till now because of demand.

2 Answers  

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How to test IR testing & magnetic balance test

0 Answers  

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what is the function AND aplication of CBCT?

2 Answers  

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How one can check the faulty capacitor, diode when connected in the circuit ? and when you can not take them out ?

4 Answers  

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only some transformers and some generator requires NGR why?

1 Answers  

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