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-frequency controllers ...

Beyond the wheel, the most important mechanical equipment serving humanity is the centrifugal pump. Centrifugal pumps make modern quality of life possible. Turn on a faucet and a centrifugal turbine ...

Optidrive E3 variable frequency drives (VFDs) from Invertek Drives have completely automated the control of pumps used to fill and empty ballast tanks on board commercial barges in the Netherlands. As ...

A Variable Frequency Drive (VFD) regulates the speed of a 3-phase AC electric motor by controlling the frequency and voltage of the power it delivers to the motor. These devices, also known as ...

Speed, torque, and horsepower are three inter-related parameters in motor control. The speed of a motor, measured in revolutions per minute (rpm), defines a motor's ability to spin at a rate per unit ...

David Perri, Director Corporate Engineering, Barry Durham,Corporate Environmental Manager, Bohdan Dackow, Corporate I&C Engineer, USPowerGen. The New York State Department of Environmental ...

Today, many data centers implement solutions that remove extra heat by increasing air volume or reducing air inlet temperatures, which can be inefficient and costly to run. When air cooling systems ...