How to reduce power factor correction capacitors failure in an industrial environment with vsd and computers usage in the system

2 Answers   ABB,

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i want to know is it possible to generate usefull power by coupling generator with motor & supply gives to motor by battery source then generator generates power. remove the battery source given to the motor & feed the supply from some of the generated power supply to the motor & motor runs continously. generator generate power contnously.is it possible ?

5 Answers   UltraTech,

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Megger type of instrument is used to check??

8 Answers  

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How to connect the earthing in aircraft?

1 Answers  

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What is the significance of integral controller and derivative controller in a pid controller?

0 Answers  

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what is main advantage if motor connected in star or delta?

3 Answers   Essar,

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Why do we require transformer with less specific weight if supply frequency is increased?

0 Answers  

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single phase for 230 then why three phase are 440 volt

4 Answers   ACIL,

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what is deffrence between squirral cage and wound rotor in IM?

0 Answers   ME,

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What is principal to reduce earth leakage current with isolation transformer? When isolation transformer is installed in input stage of system, earth leakage current is reduced. the reason is why the leakage current of 2nd stage of isolation transformer does not affect the 1st stage's leakage current. I would like to know the reason. As you know, earth leakage current is a kind of AC. So, How to reduce earth leakage current in case that isolation transformer is used?

2 Answers  

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when a primary current injection test is required, it is accomplished by what?

3 Answers  

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Write down the design procedure of commutaj.

0 Answers  

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