tell me exact relation b/n voltage and current and which one is depend other

7 Answers   HAL,

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Moving Iron instruments are applicable with a) DC only b) AC only c) DC & AC

14 Answers   Bhel, Engineers India, Engineers India Limited,

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what is meant by skin effect ?

3 Answers  

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can we use only a isolator in the subtation..

1 Answers   ABB,

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i have faced a problem in ro plant grunfos make bm30type pump it is 22kw pump. We start this pump using siemens 3rw 4423-ibc44, 30kw softstarter but this soft starter will frequently failier so we planed to change dol starter. So pls tell anybudy its possible or not.

0 Answers  

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What is surger vector in 33Kv transmission feeder? We have AC power generator of 8MW which is paralleled with 33Kv EB grid. Some times our HT breaker gets trip off due to surge vector problem. How to over come it? Is there any device to observe the surge and avoid tripping?

3 Answers  

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how we identify between current transformer and potential transformer without having it name plate?

5 Answers   L&T, TATA,

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what is the main use of ac and dc drives ? it is only used for speed variation or for power saver also?

1 Answers  

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how can we connect the capacitor bank to improve the power factor?

5 Answers  

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Can u Explain about the electronic trivector meter and the use of data converters in them?

0 Answers   Tricom,

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How do you find HT and LT sides of a distribution transformer only by looking at it from outside?

1 Answers   Nespak,

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why circuit breaker closing time is always higher then tripping / opening time.

13 Answers   United Phosphorus,

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