Air compressor
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May I ask, when a conventional air compressor without variable frequency is in operation, is its current value constant? What factors affect current fluctuations (such as the opening degree of the intake valve and exhaust valve)? And what are the specific impacts (for example, if the intake valve opens more, how does the motor current change, and how does energy consumption change)?
It is not a constant value; any change in the air compressor’s flow rate will affect the current
The type of your air compressor is unknown; positive-displacement compressors have high pressure and high current, while centrifugal compressors have higher current as the inlet flow rate increases.
The current is not constant; it changes depending on the load. The load is related to the structure of the compressor, and both are associated with the compression ratio!
For compressors with the same type of screw, the higher the pressure, the lower the air volume; the higher the current, the more power is consumed. A high frequency of loading and unloading also affects changes in current； The centrifuge mainly fluctuates depending on the air volume, which in turn causes changes in current; ultimately, it depends on the operating conditions of the unit.