Answer Posted / sunil shirole

Generator is rotate the crank shaft and Alternator to
produce the Alternating current when gets rotated.

sir please send me previous year questions of jspl of electrical section through which i could prepare myself fpr the test.

1896

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why should the primary of transformer be connected in delta in a heat run test?

1964

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A motor running with lenze frequiency inverter stops if I REDUCE SPEED with 25% load.If I run it in High speed and medium speed running smoothly with full load.please help me to solve it.

1970

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wat is meant by PX class in ct?

2030

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Parts of machine and their discription in details with suitable photo

2040

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Witch do depand of Power factor and theory of power factor?

2085

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how to enter inverter parameter? without manaual?

2017

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how to calculate fuse rating for a motor

5632

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On a 3 winding transformer YNynd11, how do you apply REF protection to the Delta tertiary winding that is supplying auxiliaries to a substation?

4359

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I have a small system with two motors that are running on 380 vac, 60 hz. These motors are expensive and I usally get them from Brazil. I am adding another motor to the system, but I want to purchase a 480 vac, 60 hz motor to use. It will be on a VFD that is rated fro 380 thru 480. Is this posible and will I have to use a larger motor and derate it?

1957

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design of IGBT firing circuit for 11KV

2622

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what is the power factor used by the PHCN in nigeria? 2. what is the difference between an alternator and generator. 3. Generation of poweris in KV but how is transmission is in MW. 4.If the transmission of power is 20,000MW how can it be increaesed to 80,000MW

8600

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Is it required to lay 2 runs of GI wires along with armoured cables from one power DB Machines of higher rating?

1979

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What type of wiring series or parallel is used for conventional and addressable type FAS & why?

1792

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What does the term power factor shows?

1096

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