Before disassembling, check the appearance integrity of the DC brushless motor, and then use compressed air to blow off the dust on the surface of the DC brushless motor and wipe away the dirt on the surface. 2. Select a work place where the DC brushless motor is differentiated and clean up the on-site environment. 3. Understand the structural characteristics and maintenance technical requirements of DC brushless motors. 4. Prepare special tools and equipment needed for disassembly. 5.
In order to further understand the defects in the operation of the brushless DC motor, when the conditions are agreed, the inspection test can be performed before disassembly. Therefore, load the DC brushless motor for trial operation, check the temperature, sound, vibration and other conditions of each part of the DC brushless motor in detail, and test the voltage, current, speed, etc., then disconnect the load and perform no-load inspection experiments. Measure no-load current and no-load loss and make a record. 6. Block the power supply, remove the external wiring of the DC brushless motor and make a record. 7. Select a Air conditioning fan motor https://www.chinakxdq.com/product/air-conditioning-fan-motor/ suppliers multimeter to test the insulation resistance of the DC brushless motor. In order to compare the insulation resistance values measured during the last overhaul to determine the insulation change trend and insulation state of the DC brushless motor, the insulation resistance values measured at different temperatures should be converted to the same temperature, generally 75 ° C. 8. Test the absorption rate k.
When the absorption rate is greater than 1.33, it indicates that the insulation of the DC brushless motor is not affected by the wetness or the wetness is not severe. In order to compare with the previous data, the absorbance measured at any temperature should also be converted to the same temperature. 9. After reviewing all the problems, deal with the problems found, reassemble and run them.
In order to further understand the defects in the operation of the brushless DC motor, when the conditions are agreed, the inspection test can be performed before disassembly. Therefore, load the DC brushless motor for trial operation, check the temperature, sound, vibration and other conditions of each part of the DC brushless motor in detail, and test the voltage, current, speed, etc., then disconnect the load and perform no-load inspection experiments. Measure no-load current and no-load loss and make a record. 6. Block the power supply, remove the external wiring of the DC brushless motor and make a record. 7. Select a Air conditioning fan motor https://www.chinakxdq.com/product/air-conditioning-fan-motor/ suppliers multimeter to test the insulation resistance of the DC brushless motor. In order to compare the insulation resistance values measured during the last overhaul to determine the insulation change trend and insulation state of the DC brushless motor, the insulation resistance values measured at different temperatures should be converted to the same temperature, generally 75 ° C. 8. Test the absorption rate k.
When the absorption rate is greater than 1.33, it indicates that the insulation of the DC brushless motor is not affected by the wetness or the wetness is not severe. In order to compare with the previous data, the absorbance measured at any temperature should also be converted to the same temperature. 9. After reviewing all the problems, deal with the problems found, reassemble and run them.
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