Answer Posted / k.prakashchandra

Megger between winding terminal and the body .The voltage of
the megger should much higher than the rated voltage of the
motor.For 230and 400 V motors 500V megger is to be used.

Can any one give an explanation about rating factors of cable? if we are laying the cable on the air with an temp 15 degree then rating factors will be 1.15 and if we are laying the cable on the air an temp 60 degree then rating factor will be 0.76 please describe it and what is the difference between rating factor and derating factor?

1505

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what is the minimum voltage require to injure our body?

6963

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Battery is a voltage source? give one example of current source and why?

1603

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Why temperature rise is conducted in bus bars and isolators?

1344

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hello everybody. what does an abnormal stator winding impedance or dc resistance show? thanx

1922

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Difference between megger test equipment and contact resistance meter test instruments?

1331

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I want formula to calculate current loss with distance in km.I searched many sites but didn't right answer.Plz reply me

2085

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IN dc capacitive reactance is??

1406

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Why AC & DC capacitor are use in UPS ??????????????????

2134

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I am completed DEEE in tamilnadu, now i am working in andhrapradesh with 2.5 year experience in relavent field. capacity of the tranformer is 11KV, 1MVA Transformer, i am eligible for getting c licence in andhrapradesh pl help me.

1592

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What is the difference IN MCCB's between thermal magnetic and electronic tripping system ?

2073

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Why strting torqe high in inducation motor?

2155

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What is the reason for using a GE G101 MCB in place of an EP102 MCB if both are capable of AC circuit protection?

2659

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fuel-air ratio in a petrol engine fitted with suction carburettor,operating with dirty air filter as compared to clean filter will be

1063

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what is the effect of change in supply frequency on load angle of synchronous motor,all other parameters remaining same?

2369

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