Answer Posted / r a m e s h

The oil helps cool the transformer.
To improve cooling of large power transformers, the
oil-filled tank may have external radiators through
which the oil circulates by natural convection
one is
Pentaerythritol(C5H12O4.)
Askarel made from crude petrochemical oil.

for compensate 315mh inductance ,how many capaciance required?

2127

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what is the difference between switchgear and circuit breakers and is there any difference between outdoor and indoor switchgear and circuit breakers , and how would you differentiate between switch yard and substation and grid station . thanks

2280

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What are the application of filter?

1121

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Can you explain about pole discrepancy scheme

2235

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When a single pase capacitor run motor- run on 230vac and Case(1)run with 8 Mfd 250 vac.capacitor , Case( 2) run with 8 Mfd 400vac capacitor. What is difference between both case regarding power ,efficiency etc?

2114

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how to failure indution motor insulation & how to improve heat in motor insulation

1934

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If a current -8+6sin6t is flowing three ammeter, one is a centre zero PMMC meter, one is true rms meter and one is moving iron meter. What are the reading of these three meter respectively?

2280

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what is cathodic protaction?

2040

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WHY THE DIMENSION OF TWO SAME RATED MACHINE IS DIFFERENT ?

2287

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- two pumps must work with them at the same time but if the first pump start the second pump  must delayed for some time to start  also , with motor rated power = 90 KW and rated voltage = 380 V and rated power factor = 0.85 lag please draw the power and control circuit for it and determine all circuit components parameters that you use it

2807

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what is invertor supply and raw powersupply

2169

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What is step signal?

1100

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FEINGING DECREASES THE FLUX DENSITY IN THE AIR GAP. HOW?

2249

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Explain what are inter-poles and why they are required in a dc machine.

1144

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upto how many load can v connect to stabilizer which is used for tv

2300

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