Answer Posted / muhammad ashraf

Soft starter is a device which controls satarting Current
of the motor. it start the motor from 0 to 100% slowly.
meanwhile it save the electrical power and reduce the loses
and starting tarque.

A cable with concentric PE conductor must be used with frequency converter circuits what does its means.?

1560

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what is auto re-closer?

2601

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I have a relay contact rated at 220v dc which is supplied with a 24vdc from the panel,for it to trip the dampers(24vdc).What if the application of the relay changes so that it should work at its rated 220vdc then will it work at 24vdc supply given or any other consideration needs to be taken .....

2057

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2149

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Hello to all, Please someone can send me HPCL ELECTRICAL Engg. Sample papers to me? Its urjent....my email address is.... raviasiapacific@gmail.com

2117

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sir my exam is on 19/6/2013 under electrical branch pls send me sample aptitude questions as well as sample technical questions for jindal steel and power company

2166

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What is force on a conductor in a magnetic field ?

1048

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for a 500 KVA connected load, I calculated 30% of capactor for power correction. Even after using 225 KVR capactor PF is not improving. What could be reason for low Phase correction factor?

1942

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What is the complete procedure of erection of electrical panel in industry

1846

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Is a d.c.compound motor is use as a booster? how?

2116

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DEAR SIR/MADAM,CLEARLY EXPLAIN ABOUT CRAWLING AND COGGING EFFECTS IN INDUCTION MOTOR.

1949

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what are the applications of PLC?

1955

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how you will decide the distance between the power transformer and its fencing

1948

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what is the pulse and audio frequency transformer? what is different between induction regulators and tap changing transformer?

2092

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How to calculate loses in transformer of 160 KVA ?

1641

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