Slowing down the fan saves the unneeded air flow and saves the horsepower of the fan, which saves money. The device that controls the fan speed is called a variable speed drive. Variable frequency ...

Hydrostatic drives are widely recognized as an excellent means of power transmission when variable output speed is required ... motors -- particularly higher flow and pressure ratings in a ...

The way we control the speed of fan motors or pump motors has tremendously changed in the past two decades with the introduction of variable-frequency drives (VFDs), aka variable ... pressure required ...

As a hybrid technology that combines mechanical and electrical systems, electrohydraulic variable speed drives allow for motor speed adjustments to conserve energy and provide precise control over ...

This voltage causes current to flow through the components ... but mainly reactive at the light load. By installing variable speed AC drives, you can improve process controls, increase energy ...