There is a non-contact power transmission structure between the permanent magnet governor motor and the load, which requires low centering accuracy and quick installation and debugging. Moreover, the electrical control system of the permanent magnet governor is simple, without complicated circuit equipment. After short-term training, the user user can be skilled in operation and can start frequently, and the user maintenance personnel can quickly determine the cause of the failure and solve it by themselves. The permanent magnet governor is basically maintenance-free, no need to store maintenance spare parts, the entire equipment takes up very little space, and the service life can be up to 20 years.
The installation of the variable frequency speed control system requires precise alignment between the motor and the load, and high requirements on the ambient temperature and humidity of the installation location of the equipment. In the debugging process, in order to ensure the load balancing of the multi-drive and the synchronization performance of the multi-point drive, it takes a lot of manpower and time to achieve. During use, although the start-stop operation is relatively simple, but there are many precautions during the operation and can not be started frequently, otherwise it will easily lead to failure. The frequency conversion speed control system is composed of complex power electronic equipment, which requires extremely high professionalism of maintenance personnel. At present, domestic frequency converter users generally lack a professional maintenance team. Once an electrical failure occurs, it will have a great impact on high-yield and efficient automated production. In order to ensure the production of the inverter, a complete set of spare parts is required, which occupies a certain amount of spare parts funds. At the same time, the uncertainty of the inverter fault and the timeliness of the electronic components also cause a waste of maintenance costs, and the service life of the equipment is 5 to 10 years. . In the whole matching process of the large belt conveyor, there must be a lot of space to install the frequency conversion speed control device.
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