Give two basic sprrd control scheme of DC shunt motor.

2 Answers  

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what is the principle of synchronous motors?

3 Answers   The Grand,

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What is the principle of Excitation.

1 Answers  

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Why are short circuit ratings always 16kA,25kA,36kA and 50kA.Who has fixed these?

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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 does ELCB work when exist earth foult? and How does RCCB work when exist earth foult?

1 Answers  

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how wud i know that whether i have to use unitized package substation or transformer?

1 Answers  

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WHY EXCITER PHASE SEQUENCE ARE OPPOSITE THAN STATOR SUPPLY PHASE SEQUENCE IN SYNCHRONOUS MOTOR >

0 Answers  

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Baud rate is used to descrice...?

2 Answers  

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acsr dog conductor specification

1 Answers  

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Why the rating of the HT breakers are in 1250 Amp, while the load on the breaker is around 50 Amp. ?

9 Answers   Wipro,

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What is the difference IN MCCB's between thermal magnetic and electronic tripping system ?

0 Answers  

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