Q: How do air compressors distinguish between frequency conversion and power frequency?
Answer: The air compressor manufacturer will indicate on the nameplate of the air compressor whether it is a power frequency air compressor or a variable frequency air compressor.
If the air compressor manufacturer does not indicate it on the nameplate, you can refer to the motor nameplate and controller label. On the working panel of the air compressor, you can also check if there is a prompt for variable frequency or power frequency.
Q: What is the difference between variable frequency air compressors and power frequency air compressors?
Answer: Compared to power frequency air compressors, variable frequency air compressors have more stable air pressure and smoother current.
The most energy-efficient variable frequency air compressor is a permanent magnet variable frequency air compressor using a permanent magnet motor, which significantly reduces energy consumption.
When the power frequency air compressor starts, the impact on the power grid is greater than that of the variable frequency air compressor.
The frequency conversion air compressor also significantly reduces noise, and it is recommended to choose a permanent magnet frequency conversion air compressor when purchasing air compressors.