which oil used in transformer?

5 Answers  

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What is the difference between AC Drive and VFD?

10 Answers   ITC Infotech,

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Which rccb 30ma,100ma,300ma sensitivity should be used in domestic line and what is difference, advantage and disadvantage of all three

2 Answers  

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Some times to change of DOR of a motor, interchange of R & B is not effected and RYB take same current, but interchange of R&Y is effected ie change the DOR. My doubt is what is the problem in motor and how it is happen.

0 Answers  

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what is the criteria for selection of conductor used for ehv ac electrical dischrge

0 Answers   National Productivity Council,

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how many voltage or current enough to kill a person?

12 Answers  

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what is the purpose of silicon dropper used in battery charger?

0 Answers   KNPC,

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What is the difference between online ups and offline ups?

44 Answers   Electrical Tech, GMR, Gravity India, HCL, Indus Towers, NIT, Pyramid, Techno Electric and Engineering, UBS,

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what is the difference between LLL and LLLG fault ?

1 Answers  

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Why in USA supply voltage parameters(230V,60Hz)are different,is there any advantage please brief.

1 Answers   APC, DRJ ARDE,

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what is cogging in motors?

1 Answers  

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What is master trip relay? How does it work?

1 Answers  

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