what is VFD and how to save the power by using VFD?

7 Answers  

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hi this is hema, r there any books in particular for the preparation of the APPSC-A.E.E(electrical), if so please mail me the names ... thank u .

0 Answers   Vizag Steel,

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when we increased the current what do ?

0 Answers  

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how oltc works in rectiformers of higher rating (27 mva,200v dc,120kamps) please provide me full information with diaggram.

0 Answers  

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What is difference between insulating medium and fault current interruption medium in a switching device.

0 Answers  

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how we decide scurt (disc) of insulator with respect to kv rating

1 Answers  

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Explain why the Voltage drop will happen in 3 Phase line?

3 Answers  

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what is disadvantages of high power factor

4 Answers  

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How can we measure the frequency of a rotor running in full load condition? Explain the method of measuring.

2 Answers   Wipro,

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what is shunt trip coil? what was the function in rmu?

1 Answers  

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what is the differance between normal bybass & maintenance bybass in UPS?

1 Answers  

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Why 4 pole generator generates more power and 6 pole generates less power campare to 4 pole

2 Answers   Julius Berger, Suzlon,

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