Treatment Method For Minor Faults Of Overhead Electric Locomotive

The overhead line electric locomotive is one of the traction equipment of rail transportation vehicles. Its power is to use the overhead line electric locomotive to drive the wheels to traction and rotate. With the friction between the overhead line electric locomotive wheels and the track surface, the locomotive is on the track. Driving and running.

The overhead underground mining locomotive has the characteristics of low cost, great transportation ability, and convenient operation. At the same time, the problem of overhead electric locomotives is relatively high, and the varieties of problems are numerous and strange.

The most common fault is the occurrence of the electrical circuit, which directly causes the starting, running and power brake of the electric locomotive to be unstable. Therefore, it is very important to accurately analyze and deal with the electrical circuit faults arising from the electric locomotive. It can quickly detect the faults to ensure the quiet and stable operation of the overhead electric locomotive. As usual, the faults of most electrical circuits are mainly caused by open circuit, short circuit, grounding, and wrong connection in the circuit.

Simple underground mining locomotive troubleshooting methods:

1. Cannot start normally. Check whether the positive power automatic switch can be closed, check whether the ground wire is normal, check whether the connection of the receiving point bow is excellent, and check whether the plug between the master control panel and the inverter can be plugged in.

2. The alarm light is on. It may be caused by problems such as over current, over voltage, under voltage, short circuit, grounding, over temperature, etc., first press the reset button, and then find out the fault point, find out the reason, and take measures.

3. The underground mining locomotive electric brake is not good enough. It may be that the braking resistor is open, the IGBT module used for braking is broken or the wiring is bad, the braking control circuit is damaged, and the handling methods: connect the braking resistor, check the module and wiring or replace the braking control board.