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What's the working principle of mine DC Mining electric locomotive?

2021-05-27
Dc mining electric locomotive refer two type locomotive: mining overhead trolley locomotive and mining battery locomotive, they are 2 different structure locomotive, do you wanna know the working principle of them? this article will show you:
1. The working principle of trolley locomotive
During the working process of overhead electric locomotive, the high-voltage alternating current is reduced and rectified by the traction converter and converted to direct current. The positive pole is connected to the overhead line and the negative pole is connected to the rail. The pantograph on the locomotive is in contact with the overhead line, and the current is introduced into the car, and then enters the traction motor through the air automatic switch, controller, and resistance box to drive the motor to run. The electric motor drives the wheels to rotate through the transmission device, thereby pulling the train to travel. The current from the motor flows back to the converter through the track.
2. The working principle of the battery-type electric locomotive.
The direct current provided by the battery enters the motor through the plug, the controller, and the resistance box to drive the motor to run. The electric motor drives the wheels to rotate through the transmission device, thereby pulling the locomotive to travel.
Above are the working principle of mining eletric locomotive.