Can u explain : what is supply for train (whether a,c or d.c ).I know that supply is 25000v a.c .But there is rumour that supply is D.C. And also explain how lights and fans inside the trains are working ,and what type of motors are used in trains whether D.C motors or induction motors .If d.c motor, how it gets supply.If traction motors are used then what are traction motors and its functions and how it differs from other motors and also explain about locomotive . please reply..............

9 Answers   NTPC,

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what is the importance of earthing system on the generators big capacity and small?

0 Answers  

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why magnetising curve not start with zero voltage?

0 Answers   TATA,

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as a electrical student why should i hire you?

0 Answers   TCS,

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Ns=120f/p. what is 120?

10 Answers   IAR, L&T, Ramada, Toshiba,

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why using carbun bresh in dc motor

3 Answers  

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What is negative sequence over voltage element?

0 Answers   Green T&D,

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Why are tertiary windings used in transformers?

2 Answers  

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if negative of DC supply used and positive is grounded through EGB, and if ELCB used in the system then is it sense the positive volatge and get tripped is it possible?

0 Answers   Delta,

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What should be ideal IR value for 11kV, un earthed, 1 MW motor?

3 Answers   Sail,

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Why Batteries are rated as AH i.e AmpereHour,and its formula to converting AmpHour to Amp

4 Answers   Suzlon,

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what is the abbreviation of MIMIC regarding control and relay panels of power systems????

1 Answers   Enercon,

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