Metro Train
Metro train is a type of high-capacity public transport generally found in metropolitan areas. The important factors which attract the passengers are mainly travel time, ticket price, comfort level and safety. Metro train system not only save the journey time but it is also a comfortable, cheaper and safest form of transport. Most metro trains are electric multiple units and electric power to metro train is commonly delivered by a third rail or overhead wires.
|
DC Series motors require more maintenance and have higher initial cost as compared to equivalent induction motor. Advanced metro trains have a microprocessor controlled three phase propulsion equipment system and regenerate electric energy during braking mode.In conventional railway locomotives, DC Series motors in series / parallel control are used as traction drive because it has inherent features of developing high starting torque at the starting and relatively lower torque at higher speed.
|