Answer Posted / biswaranjanbiswajit rout

Electrical means above 440volt and it is dc but electronics means under 12volt and it is ac(sinusodial).

Define what is power quality meter ?

1334

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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?

2383

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in electrical control panel. how can i choose the cable rating. (example - 11kw motor, 18-25A mpcb}

2910

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What is the difference between cylindrical-type and sandwich-type winding?

1509

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Define Electrical Insulation and examples of Solid,Liquid and Gaseous insulating materials?

1806

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Why is the air gap between the pole pieces and the armature kept very small?

1442

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If the feeder rating is 7.5 kw or 10 HP star-delta feeder, MCCB is taken as 63 a, contactors-32 a, how much will be the OLR rating or which range OLR should be considered when we concern about type-2 coordination?

2362

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what is the meaning of the symbol << >> put in transformer drawing

2049

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how to commissioning the genset with amf panel?

2446

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what is meant by re-rolling motor? how it differs from standard motor?

2103

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what is the minimum (Common factor) insulatin resistance of the following a, 4mm sq wire b, cable from 50 mm sq to 800mm sq

2167

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can we use trip light with bus coupler?

1984

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how braking & making capacity of circuit breaker is calculated?

2042

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Is any generator is developed which is operated with out diesal or other expensive source?

2143

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from which subjects most of the technical que will b asked for hpcl(electrical).pls help me

2055

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