Controls, variable frequency drives

April 10, 2015

Hoffman and Lamson's Rigel Controls and Variable Frequency Drives (VFD) optimize the efficiency of new or existing company blower installations and offer an annual 20% savings in energy usage when compared to inlet throttling. Other benefits include SCADA-ready panels, meter-less flow control and pre-engineered design packages. Horsepower consumption is lower with a VFD than with inlet throttling, while both methods provide the same flow and pressure. By lowering only the unit speed with a VFD and not throttling, the blower output decreases, while the optimal efficiency remains the same as it was at full speed.

Hoffman and Lamson

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