Answer Posted / prashant pate

Its a mineral oil.usually called as POWER OIL.ASKAREL is
synthetic insulating toxic oil used for special transformer
which required non inflamability.

What is difference between insulating medium and fault current interruption medium in a switching device.

1662

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During Testing of Maintenance Free Earthing, How deep should be the Spikes of Earth Test Meter should be inserted in the soil(one spike is 15 Meter & Other spike is 30 Mtrs away from the Main Earth Electrode. Because, recently, we observed that when spike is inserted 3-4 Inch in the earth- results are better, If spike is inserted 1 feet deep than results are increasing.

1952

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What is the Minimum winding resistance of motors ( small & big)? referance range

2317

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What is ferro-resonance in electrical system? Why it occurs and what are measures to prevent it?

2241

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a simple c++ program to calculate simple interst with its data members as private

1878

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what is the principle of operation of tungstun bulb ??

1831

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What should be the amps for a MV fuses for transformer 630kVA 20(10)/0.4 kV

2042

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SUTIABLE FOR ohm's law super conductor

1956

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hi pal, i am vengatesh from tamilnadu(chidambaram),i have called for the written test for the post of jr executive(ELECTRICAL) of AAI ,I dont know about the question paper pattern,so any kindly help me to face the examination,post me the model question papers and some tips to write my examination to (vengi.annadurai@gmail.com)

1893

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how we explain parallel paths armature winding?

1965

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what is meant by 2 within a star in a voltmeter dial?

2098

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please send me previous year questions of jspl through which i could prepare myself for the test.

1880

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how to select correct size of power cable for inverter duty motor

1583

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what is meant by 3rd hormonics ?

2027

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What is the rating of circuit breaker needed for 300 KVA load in 33 KV supply line in a transformer of 33 KV / 415 Volt ?

1780

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