— Minimum maintenance costs.
When compared with VSD compressors, standard screw compressors, the following factors should be noted: the latter, as a rule, work in full load capacity modes. In the entire range of working pressures, the load management is not carried out, which can be considered irrational. In the event that the maximum pressure level is reached, the standard screw compressor goes into idle mode. If the consumption of compressed air passes at a small or medium level, energy consumption in idle mode becomes significant. The conclusion from all of the above can be made unequivocal. The VSD compressors controlled in automatic mode are more economical and rational units.
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