which starter is used for synchronous motor

18 Answers   APTransco, IBM,

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What is the basic principal, by which DC voltage level is increased more than the supplied AC voltage during conversion. As upto AC level it is contorrled by firing anlge but after maximum level how is it possible.Please clear picture. OR we have to supply the higher level AC?

0 Answers  

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For a Potential Transformer(PT), the primary neutral terminal must be grounded before energization. Why....? What will be heppend if we energize the PT without grounded the primary neutral point? Why..........?

2 Answers  

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CORRECT INFORMATION ABOUT TRANSFORMERS,what actually transformer is?

6 Answers  

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what is the working principle of soft-starter & how it diff. from VFD ?????????

5 Answers   L&T,

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what is diversity factor ? plzzzzzz describe me

1 Answers  

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what is the difference between gsm and cdma??

2 Answers   QMS, Vedanta,

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When we need up only in o/p 440v, so why we use directly in 11kva in input?

0 Answers   Lupin, Medhaj Techno Concept,

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how many bulb of 60watt at 300volt is used to maintain 0.25 amp.with valid reason?

4 Answers   Cords Cable, TATA,

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hello! can anyone explain to me how a 3 speeds table fan work? what are the factors that are controlling the speed of a normal table fan? Is it by varying the voltage or changing the magnetic field? would appreciate your reply :) thx in advance.

2 Answers  

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How to measure the earth resistance value in a concrete pavement(flood light area)?

0 Answers   ANZ, Watt,

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The coils having selfinductancs 10mh and15mh,effective inductance 40mh when connected in series aiding. what will be the equivalent inductance if we connect them in series opposing?

1 Answers   BSNL,

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