Inverter
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A Mitsubishi A800 low-voltage inverter is driving a 500-kilowatt motor; when it’s in operation, the motor makes a harsh buzzing sound. Do any experts have any solutions to this issue?
If the motor makes noise, you need to contact the motor manufacturer; what does it have to do with the frequency converter?
Normal electromagnetic noise; it’s impossible
It could be resonance; change your frequency and try running it at a different frequency
The carrier frequency of the inverter is too low; try raising it.
1. It is recommended to try changing the switching frequency of the inverter. 2. Add an output reactor or filter
This post was last edited by kevin19821221 on 2021-4-30 10:20 ~
Try using a different frequency; resonance might occur
Measure whether the output voltage of the down-converter and the motor current are within normal ranges; if both are within the normal range, consider a problem with the motor