star delta starter contorl circuit... drawing..

0 Answers  

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What is the use of insulation tester and how it is to be used.

2 Answers  

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IF we have 500kva transformer 11.0/0.415V, 50Hz. How to calculate the current on HT & LT side, how can we consider for its breaker (HT & LT both)? You are requested to solve the question herewith.

3 Answers   Bhutan Power Corporation,

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how to produsing geretor power

0 Answers  

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What is the difference between Isolator annd Circuit Breaker.

21 Answers   ABB, Lanco, NTPC, Power Grid, RInfra,

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WE HAVE A PROBLEM THAT THE MAIN DRIVE OF OUR CEMENT MILL HAS AN EARTHING PROBLEM?TWO OF STATOR WINDINGS INSULATION HAS BEEN COLLAPSED DUE TO AGING PROBLEM.THE PHASES HAVE BEEN BYPASSED AND NOW THE LOAD HAS BEEN INCREASED.WE CAN'T REPLACE THE MOTOR.KINDLY HELP ME BY GIVING SUGGESTION THAT HOW TO MAINTAIN THE STARTING TORQUE AND CURRENT FOR HIGH LOADS.

1 Answers   ACC,

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difference between the earthing,grounding and neutral

1 Answers   DLF, L&T,

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Name the types of motors used in vacuum cleaners, phonographic appliances, vending machines,refrigerators, rolling mills, lathes, power factor improvement and cranes.

0 Answers  

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why using carbun bresh in dc motor

3 Answers  

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why to use freewheeling diode ( diode in revers bias mode) across dc coil

2 Answers  

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how to changeover ups in this power failur time?

0 Answers   Essar,

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is harmonic useful or it distort the alternating quantity?

2 Answers  

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