Answer Posted / praveen

normally transformer coil is like an inductor l=ldi/dt , so
rate of change of current important in square wave rate of
change is happened means the transformer changes it value

how to calculate the no load current in transformer?

2483

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any one can explain the stages of a knee point which is taken during ct magnetising curve.

1740

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sir i applied for hpcl(electrical).i want to know from which subjects most of the technical que will b asked.and pattern of the written test.pls help me

1907

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What will be the size of copper cable (each for 3 phase and 1 neutral) from Service connection Kit-Kat to Panel Board (i.e. to main switch) for a 6 pole 3-phase AC induction motor of 200 H.P. capacity? Amp-255 A, Frequency:- 1450 rpm.

1930

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i m doing DEEE in part time,can i join regular cources in BE,,IF i join what the cources can i select like (civil,ece,IT) ,,kindly advice

2080

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Is there any specialised book to refer about fault level calculation both in MV and LV side??

2041

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STATE WORKING OF VACCUM CIRCUIT BRAKER?

1892

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What is difference and reason b/w -48V BTS system and 24 V BTS system. Plzzzzzzzzz tel me.

2187

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bitumar

2258

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What do you mean by phasors?

1038

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how to electronic energy metter failed in electomagnectic fild passing in the metter and which thing to defect more on metter.

1938

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pls tell me about ups internal connection & we have given only 3 phase supply to ups system how get 4 wire (R Y B N )

2717

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Can you any one explain application of buccholz relay operation and pressure relif device operation of power transformer

1826

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i had aplied Hindustan Petroleum corporation limited for the post of maintenance technician -Electrical,i want model questions,if anybody have please send it or please advice?

1842

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how to calculate kvar in Akiva

1893

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