Answer / srnmurali

to start a motor we need rotating magnetic field. this will
be produced by two windings.

Answer / dhivyabharathi

To produce rotating magnetic field, atleast two windings(two
fluxes) are required.So, primary and auxiliary windings are
given.

Answer / viswanatha reddy

why we are using two wdgs means one wdg is used for strting purpose and another wdg is used for running purpose

AP Transco Assistant Engineer (Electrical) Model Question papers

2 Answers   APTransco, HCL, Tranco, UPSC, VMware,

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show the single line diagram of star delta starter with single phase preventer

0 Answers  

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what is difference b/w CFL and Ordinary lamps? which one is useful for power saving?

5 Answers  

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what are the disadvantages of low power factor

0 Answers   HMK,

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What should be the voltage between Neutral and Ground in secondary side of the step down transformer (230 V to 110 V) with no load condition?

0 Answers   Jindal,

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Why did call copper as a electrical conductor?

2 Answers   ABB,

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what causes contact chatter when there is no demand on the air conditioning unit?

0 Answers  

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concept of busbar and load dispatching..?

0 Answers  

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what precautions to be taken while desigining a LT,HT panel. Eg-LT panel PCC panel with ACB installed. HT panel VCB panel with VCB installed. & what is main diffrence betwn IP54 & IP55 construction of panel.

0 Answers   Bhel,

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Two bulbs of 500w and 200w rated at 250 v will have resistance ratio as ?

2 Answers   CGL, Dreamz Infra, Sunny Developers,

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How to select a D.G set for calculated load of 110kW..?

7 Answers   Shakthi Power Systems,

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if three phase supply is given to single phase transformer, what will happen?

3 Answers  

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