Installing a variable-frequency drive (VFD) on the power frequency motor can complete the accurate control and speed regulation of the motor, and improve the power and accuracy of the forward motor. However, if not properly equipped and used, it may cause the following hazards:
Motor overheating: The voltage and frequency of the VFD output are variable, if the setting is not done properly or does not conform to the characteristics of the motor, it may cause the motor to overload or the internal temperature of the motor to be too high, and then damage the motor or shorten its service life.
Electromagnetic interference: The high-frequency current and electromagnetic waves output by VFD will interfere with the surrounding electrical equipment, which may cause abnormal operation or shortcomings of other equipment.
Oscillation and noise: Changes in the voltage and frequency of the VFD output will cause motor oscillation and increased noise, which may affect the normal operation of the equipment and the working environment of personnel.
Safety incidents: Incorrect equipment and the use of VFDs may cause safety incidents such as motor short circuits, electric shocks, fires, etc., which then endanger the lives and wealth of personnel.
Therefore, when installing VFD on the power frequency motor, the appropriate VFD and sensor should be selected, and the correct parameter setting and debugging should be suspended according to the rated parameters and characteristics of the motor to ensure the safe and reliable operation of the equipment. At the same time, in the process of equipment and operation, relevant safety standards and operating procedures should be followed, and sufficient inspection and testing should be suspended to ensure the normal operation of the equipment and the safety of personnel.
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