Variable speed air compressor
A Variable Speed Drive (VSD) Air Compressor is an air compressor that takes advantage of variable-speed drive technology. This type of compressor uses a special drive to control the speed (RPM) of the unit, which in turn saves energy compared to a fixed speed equivalent.
The most common form of Variable Speed Drive (VSD) technology in the Air Compressor Industry is a variable-frequency drive (vfd), which converts the incoming AC power to DC & then back to a quasi-sinusoidal AC power using an inverter switching circuit.
What's the benefit of this technology?
The benefits of this technology included reducing power cost, reducing power surges (from starting AC motors), and delivering a more constant pressure. But the down side of this technology is the heavy expense associated with the drive, and the sensitivity of these drives, specifically to heat and moisture.
