What will cause the automatic switch of the trolley electric locomotive to trip?

Date:2023-03-22

What will cause the automatic switch of the trolley electric locomotive to trip?

The reason for the tripping of the automatic switch of the trolley electric locomotive is generally related to the motor.

If the motor temperature rises too high, it will cause a short circuit of the motor, which will cause the automatic switch to trip.

The reason for the short circuit of the motor may also be the sparks generated between the carbon brush and the commutator, or the gap between the copper sheets of the commutator is filled with carbon dust, etc.

It may also be because the electric locomotive was originally driven by dual motors, one of the motors suddenly stopped working for various reasons, and the remaining motor had to bear double the load. As a result, the automatic switch tripped due to the occurrence of excessive current.