Three-phase no-load current of asynchronous motor under rated voltage, any phase deviation from the average value shall not be greater than the average value10%Only in the three-phase voltage imbalance is too large or the motor itself With the fault, the motor will produce a large three-phase current imbalance.
The three-phase current imbalance will cause the three-phase asynchronous motor to generate additional heat, but also cause the three-phase rotating magnetic field imbalance, so that the motor emits a special low sound, the fuselage also vibrates.
Three-phase asynchronous motor manufacturer reminder: When it is in rated working conditions, normal operation, its temperature should not exceed the temperature limit. The cause of the motor overheating is very complex, the power supply, the motor itself and the load three aspects of the abnormal situation will cause the motor overheating, poor ventilation and heat dissipation will also cause the motor overheating.
If it is in an overheated state for a long time, the insulation will be heated and aged, affecting the service life. For the insulation in use, if the temperature rises, it should be shut down to find out the cause and remove the fault.
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Shengzhou Senli Motor19Old motor manufacturers, with a number of their own motor production lines, from the shell, shaft, rotor, stator are independent production, all products are the use of professional product quality supervision and testing equipment full inspection factory, can provide testing reports. From the shaft machining to the whole machine assembly are completed independently. Truly realize factory direct sales.
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