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How to check the hot air circulation fan motor before starting?

systemdate:2020/12/22 10:42:31 from:Shanghai Zuoli
1. For new or long-term shutdown motors, the insulation resistance between windings should be checked before use. 500V insulation resistance meter is generally used for motors below 500V, 1000V insulation resistance meter is generally used for 500v-1000v hot air circulating fan motor, 2500V insulation resistance meter is generally used for motors above 1000V, and the working voltage shall be measured when the motor is cooled.

2. Check whether the appearance of the motor of hot air circulation fan has cracks, whether the fastening screws and parts are complete, and whether the motor is in good condition.

3. Check the reliability of motor of hot air circulation fan.

4. According to the voltage, power, frequency, wiring and speed data displayed on the motor nameplate of hot air circulating fan, it is consistent with the power supply and load.

5. Check the motor ventilation and bearing lubrication of hot air circulating fan.

6. Turn the motor shaft to check whether the rotor can rotate freely and whether there is noise during rotation.

7. Check whether the electric brush group of motor of hot air circulating fan is flexible and whether the lifting handle position of brush is correct.

8. Check the reliability of motor grounding device of hot air circulating fan.

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