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The two components of the air compressor inverter should be replaced regularly

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The frequency converter is composed of various components, some of which will gradually degrade and age after working for a long time, which is also the main reason for the failure of the frequency converter. In order to ensure the long-term normal operation of the equipment, the following components should be replaced regularly:


  1. Cooling fan.


  • The power module of the inverter is the device with the most serious heat generation. The heat generated by its continuous operation must be discharged in time. The life of a general fan is about 10kh~40kh. Converted according to the continuous operation of the inverter, the fan needs to be replaced every 2 to 3 years. The direct cooling fan has two wires and three wires. One wire of the second wire fan is positive and the other wire is negative. Do not connect wrongly when replacing; , There is a detection line outside the negative pole, please pay attention when replacing it, otherwise it will cause the inverter to overheat and alarm. AC fans are generally divided into 220V and 380V, and the voltage level should not be mistaken when replacing.


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  1. Filter capacitor.


  • Intermediate DC circuit filter capacitor: also known as electrolytic capacitor, its main function is to smooth the DC voltage and absorb low-frequency harmonics in DC. The heat generated by its continuous operation and the heat generated by the inverter itself will accelerate the drying of its electrolyte. directly affect the size of its capacity. Under normal circumstances, the service life of the capacitor is about 5 years. It is recommended to check the capacitor capacity regularly once a year. Generally, if the capacity is reduced by more than 20%, a new filter capacitor should be replaced.


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Sollant Group-Professional Compressed Gas Solutions Provider



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