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Which parts should be replaced regularly?

2023-04-26(660)Browse

Frequency converter is a power control equipment that controls AC motor by changing the working power supply frequency of the motor. The frequency converter is composed of many electronic parts, etc.,...

Frequency converter is a power control equipment that controls AC motor by changing the working power supply frequency of the motor. The frequency converter is composed of many electronic parts, etc., which will cause wear of some parts to reduce the characteristics of the frequency converter after long-term use, and will cause failure in serious cases.


1. The rated current of the fuse is large and the load current, under normal conditions of use, the life is about 10 years, and it needs to be maintained or even replaced within this time.


2. After the relay and contactor reach a certain cumulative number of switches, poor contact occurs and needs to be checked and replaced.


3. Cooling fan: The main circuit of the inverter semiconductor device cooling fan accelerates heat dissipation to ensure normal operation below the allowable Wendy. The life of the cooling fan is limited by the bearing, which is about 10,000 to 35000h. When the inverter is in continuous operation, the fan or bearing needs to be replaced once after several years.


4. After several years of use, the action time will change greatly, so replace it after checking the action time.


Tags # Which parts of the inverter should be replaced regularly? # Frequency converter maintenance #

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