Answer Posted / s.madhavan

Thumb rule : KVA X 1.4 = Full load current/ per phase @ 0.8 p.f

how to calculation increase power factor for single phase

2293

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Why field rheostat is kept in minimum position while armature rheostat at maximum position?

1100

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LET ME NOW MORE ABOUT icu and ics for circuit breaker. how we calculate the rating of circuit breaker and i c u and ics values

2867

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what is the safe meggar values for motor, transformer HT, LT and Cables? IF we want to replace I/C bay at our 220 kv substation which is of 140 mw load capacity bay to be replaced by 400 mw capacity bay.other than CT(1200/1) what are the other equipment i have to replace. why we generally use 3.5 core cable or in other word 1/2 core for neutral and also confirm me that in balance conditiob(3 phase)current in neutral will zero

2266

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What is trip and closing coil in cb? Why need of them

1510

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wat is the current produced in a 5000v megger? when the positive and negetive terminals are touched on our body get s shock?

1921

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Advantages/Disadvantages of earthing of neutral bus on MSB instead of separate neutral earthing for transformer/DG sets feeding to MSB

2790

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Alternator rotor earth fault relay circuit

2067

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can we use engine degreaser for electrical motors?

1758

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what is a pilot wiring and whys that called a pilot wiers

1915

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there is an alternator 480 k.w, 400v,50hz, 4-wire running on load having leakage alternator body earthed current 38 A. is it within acceptable limit? if yes then give reference if no then how to bring within specified limit

1921

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how define the torque in ac drive. from electrical side in the drive friquency ,voltage and current three factor is there.

2219

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what is under coal gassification?

2082

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What is the earth treantment procedure?

2070

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What is the tipical Online UPS input voltage for 20 KVA load ( 3 Phase or 1 Phase )? Why ? Explain it...?

2640

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