Online monitoring device of state of motor device and monitoring method thereof
A technology for monitoring the state of devices and equipment, applied in the field of detection, can solve problems such as inability to quantitatively analyze and predict failures in advance, and achieve the effect of solving hidden troubles
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[0008] Specific embodiments of the present invention will be described in conjunction with the above drawings.
[0009] The motor consists of several parts such as a stator, a rotor, a bearing, and an air gap. Due to the long-term operation of the motor, its performance will gradually deteriorate, resulting in various failures of the motor. Generally, common faults can be divided into stator faults, rotor faults, and bearing faults according to the location of the fault. In order to prevent various faults of the motor, real-time status monitoring is required to prevent the occurrence of faults.
[0010] Stator winding faults mainly include short circuit between turns, overheating, and insulation faults. Among them, short circuit faults between turns account for 50% of stator winding faults, overheating faults account for about 20%, and insulation faults account for about 25%. By monitoring the three-phase current spectrum, voltage, temperature, etc. of the stator, the specific fa...
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