Common failure causes of agricultural equipment supporting motors

1. After the power is turned on, the motor does not run: 1. The power supply is not on, 2. The fuse is blown. 3, over-current relay is too small. 4, control equipment wiring error. 5, the winding wire at the beginning and end of the wrong connection or reverse connection inside the winding. 6 motor load is too large or stuck, 7, the bearing is stuck, 8, the power supply voltage is too low. The power circuit contact is loose and the contact resistance is large.

Second, the sound of the motor running is not normal: 1, the current imbalance is generated with the load-related electromagnetic frequency noise twice the frequency, but also the main reason for the motor burned, 2, the stator winding is slightly poor contact or leakage occurs when the slight "嘶嘶 嘶嘶 放电 放电 放电 放电 放电 放电 放电 放电 放电 放电 放电 严重 严重 严重 严重 严重 严重 严重 严重 严重 严重 严重 严重 严重 严重 严重 严重 严重 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 3, core air gap or loose caused. 4, due to the stator, rotor core caused.

Third, the motor running after power is difficult, the rated load, the motor speed is lower than the rated speed is more: 1, the power supply voltage is too low. 2, cage rotor fracture or open welding. 3, stator, rotor local coil wrong connection, reversed. 5, motor overload. 6. When the motor is repaired, the windings increase the number of turns.

Fourth, the vibration of the motor during operation is too large, excessive heat or even smoke: the power supply voltage is too low, the motor is also running with rated load, the current over the ambassador winding heat. 2, the power supply voltage is too high, so that the iron core heating greatly increased. 3, stator, rotor core friction, 4, the motor overload or frequent start. 5, the lack of phase motor, two-phase operation. 6. After the rewinding, the stator winding dipping paint is insufficient. 7, when the temperature is too high, the motor surface dirt or ventilation blockage

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