Answer Posted / sanjay kumar

Earth leakage circuit breaker(ELCB) trips during leakage of
current from ckt. to earth.

Residual current circuit breaker(RCCB) will trip if
algebric sum of current is not be zero.

What is boucholz relay and the significance of it in to the trformer?

1157

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which pump used in WTP explain the function of VFD how to dtermine capacitorbank of capacity one plant

1937

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Why are the cores of large transformers built up of circular transactions ?

2020

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For high frequency application we use which transformer?

1943

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how to select the mpcbs and contactor for 3 phase 30 hp star delta motors.for plc control.and tell me the calaculation for future use.

1995

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A powerplant has 8 gensets operating in grid parallel mode. In one genset sometimes there is pf variation and kvar variation. The plant operates in pf mode. When this variation is observed the load is stable, voltage is also stable, freq and genset speed is also stable. How will you check the functioning of pf card. What shall be the ideal output vdc of the pfc, from there it is input to AVR?

2329

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

1878

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A parallel flow heat exchanger will perform better than a counter flow heat exchanger. State if the statement is true or false.

1266

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What is meant by time harmonics and space harmonics?

2810

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tell me about roaster switch .& what is the function in transmission & distribution?

2685

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What is earth system using on the floater TN-S or TT. Iam not sure and what ICCP

1738

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why transformer ratings in kva? & DG ratings in kva? & Motor ratings in kw/HP?

1520

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what is v/f control in VFD?

1557

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I have done my m.tech in electrical engg discipline. Can any one please suggest me how should I prepare for getting into phd in iit or nit.How should I prepare for getting into lecturership

1705

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explain all the classes with example

1974

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