What faults are encountered when the explosion-proof motor is used? How to solve it?

What faults are encountered when the explosion-proof motor is used?How to solve it?

When the explosion-proof motor is in use, there will be some faults, so how to solve the various faults?Now let's look at the method.

1. Fault phenomenon: the explosion-proof motor cannot start, and there is no sound.

Cause: fuse fuse.The starter breaks down.The power supply is out of power.

2. Fault phenomenon: the explosion-proof motor cannot be started with a buzzing sound.

Reason: the power line has a phase break, or the fuse has a phase fuse, or the motor has a phase winding broken.The air gap between stator and rotor is not normal, so that stator and rotor collision.(3) bearing damage.(4) be driven by the machine stuck.

What faults are encountered when the explosion-proof motor is used?How to solve it?

Explosion-proof motor

3. Fault phenomenon: the motor fuses out when starting.

Reason: stator coil a contrary connection.The stator coil is short-circuited or grounded.(3) bearing damage.The drive belt is too tight.(5) driven by the machine stuck.Wrong operation during starting.

4. Fault phenomenon: the motor has a low speed after starting.

Reason: the power supply voltage is too low.Connect the motor with triangle connection to form a star.(3) stator coil short circuit.(4) rotor short circuit ring, cage break or open welding.(5) motor overload.

5. Fault phenomenon: the motor temperature is too high, but the current does not exceed the rated value.

Reason: the environment temperature is too high.(2) motor ventilation blocked.(3) motor mud, dust too much influence heat dissipation.

6. Fault phenomenon: explosion sound of explosion-proof motor in operation.

Reason: the coil is temporarily grounded.The coil shorted temporarily.