Different types of relay fault which phase sequence??

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In case of generator when we consume more power produces by it why load on generator increase and starts sound more. and how it is adjusted..

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HOW TO CALCULATE S/C,O/C,E/F OF ACB.

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What is the Ideal Earth to Neutral Rating for Techonology Equipment like Routers, Switched, PABX, Computers etc etc?

2 Answers  

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What is the difference between a Junction Box and a Marshalling Box?

8 Answers  

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How to calculate cable sizing

5 Answers  

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How to choose the vector group for the step up and step down transformers??? Tell me the which vector group is suitable for step up and step down transformers and whats the reason to choose and whats the benefits???

0 Answers   L&T,

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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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what is work of CTPT in 33/11kv Substation

1 Answers   Fiat,

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What is the different between digital phase converter and ordinary phase converter?

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What is different type of Electrical curve and how it protects the equipment's while up-normal situation?

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What do you mean by the zone of protection?

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