What is use of reactor..how it is help ful in electrical system .....brief explain

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what is current actully?significance of current...not rate of change of flow.....

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We have a couple of oil tanks at our plant. One of them does not have a lightning arrester installed. My question is it necessary to install an arrestor on every tank or will this particular one be covered by the arrestor installed on the ajdacent tank, Since all the tanks are close to each other. Basically, I want to know that if these arrestors or protection works in a parituclar area of effect or influence. Thanks

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if there is fire alarm,what is ur activity?

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why we earth only one side of a power cable. And which side is advisable to earth.

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For polarity test on a 11/3.3kV 2.5MVA delta-star Unit Auxiliary transformer,415V 3-phase supply was applied at the HV. Connection between Aa was made with a 2.5mm cable. As soon as power was switched on the cable caught fire and burnt. This test was then abandoned. It is noteworthy to say that a similar cable was also used in a similar transformer for the same. The cable did not burn and test was successfully completed with good result. What is wrong? Please, help me out.

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what is the workimg of ct &pt?

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How to check 11000/1.732 to 110/1.732 Potentila transformer (PT)?

0 Answers   TCL,

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Explain principle of Soft-starter & how its working???

12 Answers   MAHINDRA,

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how to select correct size of power cable for inverter duty motor

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As we know diode work on both negative and positive but converting ac into DC we have to given a/c from negative of diode or positive side.please give me answer.

0 Answers   cpgn,

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what is the role of energy meter in distribution system ???? technical and non technical losses in distribution system????

1 Answers  

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