Battery-powered electric trolley

The working principle of battery-powered locomotives is similar to that of overhead cable locomotives. Direct current provided by the battery is driven through components like explosion-proof switches, controllers, and resistor boxes to power the motor, thereby propelling the train.

Battery-powered electric trolley

Battery-powered electric locomotives are powered by batteries. Battery charging typically occurs in the underground locomotive garage. Once the battery pack on the locomotive reaches a certain level, it is removed and replaced with a fully charged one. Therefore, each locomotive must be equipped with 2-3 sets of battery packs.

Advantages: No spark ignition danger, suitable for use in coal mines with gas; no need for wiring, flexible usage, ideal for small-scale transportation systems with irregular tunnels and tunneling transport.

Drawbacks: Requires charging equipment; High initial investment; Low energy efficiency; Higher transportation costs.