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which motor is used in electric train...???????
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Answer Posted / rabi narayan behera
DC series motor is used in electric train.
Reason : - DC series motor has starting torque.
In electric train, every comartments are full of
passengers. So load is high.
We know that , In dc series motor , electric flux is small at
light load. but when load becomes heavy, the electric flux
increases, then speed of armeture decreases, then
the armeture torque increases.
This armeture torque
is directly propertional to the square of armeture
current.
Then due to this increase in torque , the speed of armeture increases.
At no load , armeture current increases highly for which
the dc motor will damage the dc series motor.
So dc series motor is used in electric train.
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