What failures will the explosion-proof motor meet in use? How to solve it?
What failures will the explosion-proof motor meet in use? How to solve it?
Explosion-proof motors sometimes encounter some failures in use, so how to solve a variety of failures? Now let's look at how that works. 1, the fault phenomenon: explosion-proof motor can not start, and there is no sound reason: D fuse blown. @Starter smell off. 3 Power supply No power.
2, fault phenomenon: explosion-proof motor can not start, there is a metaphorical sound
Reason :@ One phase of the power cord is broken, or a fuse is blown, or the motor has a phase winding is broken. The air gap between the stator and the rotor is abnormal, causing the stator and the rotor to collide. 3 Bearing damage. 4 The driving machine is stuck.
What failures will the explosion-proof motor meet in use? How to solve it?
Explosion-proof machine
3. Fault phenomenon: the fuse is blown when the motor starts
Cause :@ stator coil one opposite connection. @ The stator coil is short-circuited or grounded. Self-bearing damage. O The drive belt is too tight. Caught in the driving machine. 6 Misoperation during startup.
4, the fault phenomenon: the motor after starting the speed is low
Cause :@ Power supply voltage is too low. @ Connect the triangular motor into a star shape. Self-stator coil short circuit. O Short-circuit ring or cage bar of rotor is broken or welded. 6 The motor is overloaded
5, fault phenomenon: the motor temperature is too high, but the current does not exceed the rated value
Cause: D The ambient temperature is too high. @ The motor vent is blocked. @ Motor mud, dust too much affect heat dissipation
6, fault phenomenon: explosion-proof motor in the operation of the explosion sound
Cause: The O coil is temporarily grounded. @ Coil is temporarily short circuited.
