Answer / sunil singh

if we are not using oil in transformer than generally it's
size must be increased as possible as we can,, in this way
it's size increases so many times to provide insulation as
well as cooling......

Answer / dharmarajsinh

cooling of transformers are based on rating of
transformer.however if oil is not to be used for same
rating than insulation lavel will be increes and than for
cooling force cooling to be provided and altimatly size of
transformer will increases.

what is the effect of connecting three phase supply lines to three phase auto transformer output terminals through a fuse of 10Amp and a circuit breaker (MCB). Is this connection permanently destroy the transformer?

0 Answers  

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In more then 1 phase bulb will glow are not?if yes then how it will glow?

2 Answers  

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what you have to see after one week or month from the day of installation of transformer ?

0 Answers  

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Dear sir, I have completed DECE in the year 1995. I have work experience in HT and LT LINE more than five years. Now i am doing BE in EEE from rajasthan university. After completion of BE,can i apply "C" Licence sir? Please reply.

0 Answers   Balavigna,

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IN 3 PHASE INDUCTION MOTORS SOMETIMES COPPER BARS ARE PLACED DEEP IN ROTOR WHY..?

3 Answers   ONGC,

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what is the principle of operation of tungstun bulb ??

0 Answers  

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why the 4 terminal are named as main, line, common, voltage (M, L, C, v) of a wattmeter?? why not its nameed as A,B,C,D??

6 Answers   Jindal,

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what is the id1 & id2 setting in differential protection relay of CSPC?

0 Answers   Wartsila,

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how to calculate EXCITATION VOLTAGE & CURRENT in ALTERNATOR

0 Answers  

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why phase always came one direction in 5pin socket(right hand or left hand) which direction and why..........?

4 Answers   Alstom, L&T,

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If ac 230volts inputsupply to full wave rectifire what is D C output voltage.

3 Answers  

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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?

0 Answers   US Electrofused Minerals,

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