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The Motor Should Be Checked Before Starting
Nov 16, 2017

1, new or long-term disabled motor, before use, should check the winding and winding insulation resistance to the ground. 500V insulation resistance meter is usually used for motor below 500V; 1000V insulation resistance meter for 500-1000V motor; 2500V insulation resistance meter for motor above 1000V. The insulation resistance shall not be less than 1M ohms per 1000 volts, and should be measured in the cooling state of the motor.

2, check the appearance of the motor has cracks, fastening screws and parts are complete, the motor's fixed condition is good.

3. Check the reliability of the motor drive mechanism.

4, according to the nameplate data, such as voltage, power, frequency, connection, rotation speed and power, load comparison is consistent.

5, check the motor ventilation and bearing lubrication situation is normal.

6, the rotating shaft of the motor, check the rotor can rotate freely, rotate when there is no noise.

7, check the motor brush assembly situation and whether the brush lifting mechanism is flexible, the position of the brush handle is correct.

8. Check whether the motor grounding device is reliable.

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