Answer / nitish

dc series motor is used in traction because their starting torque is high

Answer / sreekar

DC Series motor is used for the Train operation

incomming volts are 25Kv Ac single phase

Answer / divya

DC series motor can be used for electric traction,because
their variable speed,adjustable speed,high starting torque

Answer / dsaisudheer3772

Some train are using 3phase induction and DC series motors
When you see on electric engine
WAP 7, WAC,WAD Combination
But supply from AC

why we use ac?why we use dc? why we we cannot use only ac/dc for all the applications?what happen if we use?

0 Answers  

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How much the fault level of 11 k.v.,22 k.v., 33 k.v. (in Maharashtra- M.S.E.D.C.L) for calculation of short circuit current & selection of h.t.cable.

1 Answers  

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what are the standard IR values should be of R-E, Y-E, B-E, R-Y, Y-B, B-R of VCB in closed condition and in open condition for 500KVA & 1000KVA transformers. and what is the acceptable range when tested by 5000V megger.

0 Answers   ME,

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Why temperature rise is conducted in bus bars and isolators?

0 Answers  

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how ceiling fan worked?

0 Answers  

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If more than rated DC voltage appears across trip coil of the breaker, what will happen? e.g. in 110V DC circuit system, if voltage across battery terminal showing 121 V

0 Answers  

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How to perform a DC resistance test In Alternator and their proceduces?

0 Answers  

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could anyone suggest project title

1 Answers   Engineering,

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On Which Pressure PRV is operated.

0 Answers   AEPL,

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what is charger supervision and control supervision?

0 Answers  

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what is the voltages using in movie theaters??? why ??why not other??

0 Answers   Lanco,

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What is the effect of impedance on the heat losses in case of AC system??? Does heat losses really depends on the impedance or depends only on resistive component only..??

4 Answers  

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