Baldor Electric's inverter-duty gearmotors are designed for use with adjustable-speed controls. The motors are rated at 3 /8-hp, 230 V, 60 Hz, and three phase. A 10 to 90-Hz operating range offers ...

Prior to the advent of the adjustable-speed drive (ASD), the polyphase induction motor operated as a constant-speed motor. Figure 1 shows the well-known torque and current curves versus speed for the ...

Variable-pitch drives are the simplest of all mechanical adjustable-speed mechanisms. Most of these drives use rubber belts. However, chain types are unmatched in regard to its particular strong ...

Adjustable-frequency drives have been billed as an energy efficient way to drive three-phase ac induction motors. Nevertheless, designers should understand that motors fed by inverter power experience ...

If you enjoyed this article, I’d like to ask for your support. Scientific American has served as an advocate for science and industry for 180 years, and right now may be the most critical moment in ...

Danfoss launches Variable Speed Drive portfolio for industrial hydraulic applications, offering energy savings of up to 60%. 23/03/2026 Danfoss Power Solutions. Danfoss Power Solu ...

NORD’s high-torque, robust industrial gear units are engineered for the rigors of mining, crushing and bulk material handling ...

Danfoss introduces Vickers VSD solutions for efficient hydraulic systems, reducing energy use and improving machines ...

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 ...

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 ...

Over the past decade fluid-power transmissions that are able to deliver both fine control and high road speed have been ...