Answer / mohammad farman khan-abu dhabi

MICOM P122 OC /EF relay have harmonic restrain because this
relay use in package unit for infrastructure use.

What are the symptoms of a bad PG card of a drive (inverter) esp. of Yaskawa Ac Drives (inverters) G7 ?

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HOW to speed control of induction mototr using scalar control

3 Answers  

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what are the industrail measures to over ferranti effect? how would the ferranti effect the power system if those remedial mearsure arent taken? how often does this effect occurs in real power system?

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how water and air molecules are conduct the heat?

1 Answers  

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Amoung all classes of electric machines, why the transformer uses oil as one medium of cooling?

4 Answers  

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what is the mechanism of operation of brushless dc motor why is it more wexpensive then ordinary permanent magnet motors

0 Answers   Lanco,

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why we use sinosidal voltage / current instead of others in system?

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how are reversing the direction of rotation of dc motor

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DC Motors applications used in Lift/Elevators

8 Answers   IOCL, SCS, Usha Martin,

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Which motor is suitable for mixer grinders.

12 Answers  

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what is the function of choke and starter in a tube light?

2 Answers  

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if we look on phasor of the transformer vaoltage is 180 oppsite at primary and the secondary so to improve a power factor is secondary should kept negative to improve it primary side means is -.90 became +.90 at other side

0 Answers  

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