What Faults Will Explosion-proof Motors Encounter During Use? How To Solve It?

Explosion proof motors sometimes encounter some faults during use, so how should we solve various faults? Let's take a look at the specific methods below.
1. Fault phenomenon: The explosion-proof motor cannot start and there is no sound.
Reason: ① The fuse is blown. ② The starter tripped. ③ The power supply is out of power.
2. Fault phenomenon: The explosion-proof motor cannot start and there is a buzzing sound.
Reason: ① One phase of the power line is disconnected, or one phase of the fuse is blown, or one phase of the motor winding is disconnected. ② The air gap between the stator and rotor is abnormal, causing the stator to collide with the rotor The bearing is damaged. ④ Stuck by the driven machinery.
What faults will explosion-proof motors encounter during use? How to solve it?
Explosion proof motor
3. Fault phenomenon: The fuse blows when the motor starts.
Reason: ① The stator coil is connected in the opposite direction. ② Short circuit or grounding of stator coil. ③ The bearing is damaged. ④ The drive belt is too tight. ⑤ Stuck by the driven machinery. ⑥ Misoperation during startup.
4. Fault phenomenon: The speed of the motor is low after starting.
Reason: ① The power supply voltage is too low. ② Connect the motor with triangular wiring into a star shape. ③ Short circuit in stator coil. ④ The short circuit ring or cage bar of the rotor is broken or welded. ⑤ The motor is overloaded.
5. Fault phenomenon: The motor temperature is too high, but the current does not exceed the rated value.
Reason: ① The ambient temperature is too high. ② The ventilation duct of the motor is blocked. ③ Excessive oil sludge and dust in the motor affect heat dissipation.
6. Fault phenomenon: The explosion-proof motor has an explosion sound during operation.
Reason: ① The coil is temporarily grounded. ② The coil is temporarily short circuited.