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

errection check list for transformer maintenance

0 Answers   RRB,

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what is diff. b/w of earth & neutral?. why we are separately using ?

3 Answers  

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why neutral and earth should not be connected on 3 phase 440v/50c/s supply at consumer side. where as on 25kv/ac/50c/s railway traction substation neutral and earth will be connected and track at substation. and track will act as neutral and earth. Reasons for this is needed urgently

4 Answers  

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What will happen if we give the 3 phase supply to the rotor of slipring induction motor?

3 Answers  

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where does 22kv line starts

0 Answers   Eskom,

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What will be the effect if I use inverter as UPS mood?

0 Answers  

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If current flows through conductor it produce magnetic field only.but if current flows through vaccum both magnetic & electrical field produce why ?

4 Answers   NTPC,

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15hp motor wound by 0.9mm & 0.95mm magnet wire. at no load test it draw 4.2A current. Another motor with same condition draw 9.2A current. How can that occur? pls help

0 Answers  

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What is the purpose of Vector Group in transformer?

1 Answers   Andritz, ThyssenKrupp,

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what is the difference between a hooter and a mcp

2 Answers  

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How to calculate Busbar Thickness for Different type of HT/LT panels

1 Answers  

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what is overflexing in transformer? setting?

1 Answers  

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