Answer Posted / naresh chandra jha

it depend which type of notor you are connecting . for
example induction motor will operate in lagging power
factor, synchronous phase modilfier with under excited will
operate in lagging and when it is overexcited it will
operate in leading p.f .

Explain marx circuit.

1330

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What are the advantages of a three-phase system over a single-phase system?

1115

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please send me RRB electrical engineer previous year questions for Sr. Section Engineer

1948

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What will be the output voltage of a transformer if it is primarily energized from a square wave voltage source?

1094

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WE ARE PLACE A NEW 75 KW MOTOR FOR JPF.IT IS CONNECTED IN M.C.C. WHEN WE ARE STARTING M.C.C.INCOMER IS TRIPPED.THEN WE ARE CONNECTED IN P.C.C WITH A MM30 RELAY PROTECTION THEN WE ARE STARTED MOTOR WILL RUN SMOOTHLY.

2071

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what is metering cum synchronizing panel and how it is used?

4645

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what id a dry type transformers and its function ?

1756

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I want to ask that is there any relation between current denesity of copper and material purity. also is ther any standard which defines the standard current denesity of material.

1957

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how much leakage current is allowed in MC61A L&T make relay?

3647

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What is relation between mu(nought) and epsilon(nought)?

1528

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we have provided 30 nos. relay contacts in panel.I want to know how do we do the numbering for the relay contacts as per any applicable standards

2007

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critically criticize the application of ring main unit in power system

1450

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Why there are some equipment(i.e:TV) that using 2-pin plug instead of three? What happen if there is current leakage? Are we going to get electric shock??

2184

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Difference between drift current and diffusion current?

1874

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what is a composite error in current transformers, why occurs & in which it will occur i.e, either metering ct/ protection ct

1849

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