Motor protector

Update date:2018-06-13 Source:MAXGE

Motor protector

The motor protector is used to fully protect the motor. When the motor is overloaded, overcurrent, phase loss, stall, short circuit, overvoltage, undervoltage, leakage current, three-phase imbalance, overheating, bearing wear, stator eccentricity , to be alarm or protection device.

Motor protector

There are two types of compressor motor protectors widely used at home and abroad: bimetal type and thermistor + electronic module type. Their structure is different and their effects are different.


At present, the motor protector has evolved from the past mechanical type into an electronic type and intelligent type, with high sensitivity, high reliability, many functions, and convenient debugging. Can directly display the motor current, voltage, temperature and other parameters, the type of fault protection at a glance, greatly facilitate the judgment of the fault, is conducive to the production site of the fault treatment and shorten the recovery of production time.


In addition, according to the motor air gap magnetic field motor eccentricity detection technology makes the motor wear state online monitoring possible, through the curve shows the trend of changes in the value of the motor eccentricity, record changes in the value of the two years, early detection of bearing failure, Early detection, early processing, and avoiding brooming accidents.

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