Answer / k.prakashchandra

The overload relay may be set at 110-120 % of the rated
current of the motor

25 kva load,

1 Answers   Voltas,

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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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Full form of bdv test?

2 Answers   Hi Tech Transpower,

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How to operate a ac chilar plant?

0 Answers  

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what is sevice settings for mccb?How can be it setted?

0 Answers   Bhel, Minda,

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motor work in hat principle generator work in what principle transformer work in what principle pls explain with details or answered to ramadoss.sepc@gmail.com

1 Answers   Vestas,

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WHAT IS THE TOTAL POWER GENERATION IN CHHATTISGARH?

0 Answers  

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how to calculate the powerfactor in induction motor having name plate details? for example 1 h.p motor 1.86 A 415 V

6 Answers  

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length of 4 core cable 95mm from substation LV VFD panel to Motor at field approximately 150 meter. Motor stop and power has been isolated from LV MCC ( Substation )to disconnect Motor for services. After Motor completed service propose to reinstall and reconnect Motor Cable, found earth cable sparkling during touching at metal / motor body. Inspect by clamp meter found earth cable have current flow AC 1-2amps and all earth cable at MCC LV also have current flow as same value. why it is happen?

2 Answers  

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What is balance beam relay ?

2 Answers   Roman,

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my company total load is 1000kw, 415volt, all load are inductive load. incoming powerfactor is .8. we want to have0.95 pf connecting capacitors. so now how much rating of capacitors we have to connect? show how?

3 Answers  

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why current coil has less number of turns compared to pressure coil?

8 Answers   Airtel,

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