Amoung all classes of electric machines, why the transformer uses oil as one medium of cooling?

4 Answers  

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what is the use of sdf?

0 Answers   Areva, SWAN,

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If we say that an cable of size 3.5X 50 mm sq. can take current upto 140 amps,is it the current of single core of the cable or of all the cores jointly.

3 Answers  

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what is meant by LT & HT?

5 Answers   ABB,

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how to select size of hardware for linking aluminium busbar is it depend on area of busbar or current flowing through bus bar

0 Answers  

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What is IGBT?Where it is used? What is the difference between IGBT and Thyristor?

5 Answers   AC, Formo Plastic, HBL Power Systems, SECL,

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what is the dis-advantage of 3 phase 3 wire energy meter?

1 Answers   Exide, Nelco,

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WHEN THESE TRANSFORMERS WINDINS CONFIGURATION ARE USED? SPECIALLY EXPLAIN REGARDING STEP UP AND STEP DOWN KEEPING IN MIND.AND REGARDING LOAD ALSO. a.star to delta b.delta to star c.delta to delta d.star to star ALSO EXPLAIN WHY V USE 415/415 TRANSFORMERS IN TUBEWELLS?

1 Answers   ABB,

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how Local Breaker Backup relay working?

1 Answers  

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Why 30°phase shift occur in star-delta transformer between primary and secondary?

1 Answers  

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How can we increase fuel-power ratio of any DG set?

0 Answers  

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what is derated current of power cable & what is formule to find derated current?

1 Answers   Thermon,

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