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DC Brushless Motor With 8 Common Sense
- Oct 13, 2017 -

1, before the demolition, use compressed air blowing the surface of the motor dust, and the surface dirt wipe clean.

2, select the motor disintegration of the workplace, clean up the scene environment.

3, familiar with the motor structure and maintenance technical requirements.

4, ready to disassemble the necessary tools (including special tools) and equipment.

5, in order to further understand the operation of DC brushless motor defects, conditions can be done before the demolition of a test. To this end, the motor to load the test, a detailed check the motor parts of the temperature, sound, vibration, etc., and test the voltage, current, speed, and then disconnect the load, do a no-load test, Load current and no load loss, make a record.

6, cut off the power, remove the motor external wiring, make a record.

7, select the appropriate voltage Megohmmeter test motor insulation resistance. In order to compare with the insulation resistance measured at the time of the last maintenance to judge the insulation trend and insulation state of the motor, the insulation resistance value measured at different temperatures should be converted to the same temperature, generally converted to 75 ℃.

8, test absorption ratio K. When the absorption ratio is greater than 1.33, it indicates that the motor insulation has not been damp or the degree of moisture is not serious. In order to compare with the previous data, the same temperature should be measured at any temperature conversion ratio to the same temperature.

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