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Variable Speed Drive

VSD Regulation The V(ariable) S(peed) D(drive) regulating system offers the capability to match perfectly compressor capacity to air demand. A VSD system is able to follow the fluctuating demand by varying the speed of its drive motor by means of a frequency converter. As air demand goes down, the VSD lowered the delivered flow and consequently the power consumption. This is the key feature of the VSD regulating system: they reduce the energy consumption to a minimum by avoiding completely un-loaded power consumption and save up to 22% on the total life cycle cost (LCC).