Answer Posted / abhishek

because they are in side the electrical field so they only get
charged and they find a static electric field out side.

Define newton's law of viscosity.

1212

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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

1941

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What is the mmf,rgt and ngt please brief completely

1635

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xfhnchncv?

1910

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What is Meter MF if External CT Ratio is 150/1 , PT Ratio is 132/110 Meter CT Ratio is 200/1 & Meter PT Ratio is 110/1

1882

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A 400 V, 50 Hz, Δ connected synchronous generator has a field reactance of 0.1 Ω and armature resistance of 0.015 Ω. At full load, the machine supplies 1200 A at 0.8 pf lagging. Under full-load conditions, the friction and windage losses are 40 KW and the core losses are 30 KW. What is the machine’s overall efficiency? Ignore any field circuit losses.

1920

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Mr. mohh sahid m not satisfied for ur answer to the que weather the size of transformer increases or decreases withchange in fr for more detail go to the answer given by me

2132

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why can the rotor of 3 phase slip ring induction motor not be a 2 phase rotor?

2065

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Define early construction of human being

1913

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In 90 kva alternator that produce the output voltage is 115(p-n),200(p-p) at 1500 rpms means what ampere it produced ?

2031

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How will polarity test of Dy5 Transformer ?

2271

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can any one provide me a connection wiring diagram for a DG set control panel along with BOM?

2215

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what is the effect of power factor of machines in starting current

2055

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we have require a Motor (1500kW, 6.6kV, 50Hz) which shall operate at 1500rpm during 30min and after it shall run on 500rpm during 15min. The same cycle shall be repetitive during the whole working days. Which method is best and economic to achieve such type of task. VFD, VVFD, Pole changing motor etc.

1918

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why we are using earth pit in sub stations.?

2167

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