What is the way to avoid the speed drop of the DC motor? I believe that everyone is more interested in this question, so let's tell you the answer to this question:
1. Broken bar of cage rotor:
If the cage rotor is broken, the pointer of the stator ammeter of the DC motor will swing back and forth during operation, and sometimes sparks will fly out of the explosion-proof motor and make a buzzing sound. Use a broken bar detector or iron powder method to find it. Take corresponding repair measures for the faulty part of the broken bar.
2. Low power supply voltage:
Check the input voltage of the explosion-proof DC motor, and adjust the power supply voltage after confirming that the power supply voltage is too low.
3. Wiring error of the stator winding of explosion-proof motor:
If the stator windings are D-connected during normal operation, the Y-connected windings are mistakenly formed and should be checked and corrected.
4. Excessive load:
It shows that the starting torque of the explosion-proof motor is low, and it is not enough to drag the rotating mechanical equipment and reduce the speed, so try to reduce the load.
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