The line of adjustable-speed drives provide accurate and repeatable speed settings and can be used as a prime mover connected to a motor, or as a secondary drive The line of adjustable-speed drives ...

Adjustable speed drive allows easy adjustment of application rates — for example, for seed and fertilizer distribution. Accurate, repeatable speed settings; when used as a prime mover, drive acts as a ...

Exelon Nuclear recently replaced the original motor-generator sets for its boiling water reactor (BWR) recirculation pumps at its Quad Cities Generating Station Unit 1 with adjustable-speed drives. We ...

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 ...

The AF-600 F11 redundant drive is suitable for applications where a full- or reduced-voltage bypass cannot be used because the control and functionality of an adjustable-speed drive is always required ...

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 ...

For many retrofit projects, the use of a VFD seems like a “no brainer.” Drives are now cheaper and more reliable than ever, and the benefits of efficient control of motors can’t be beat. Still, there ...

ROSSLYN, Va. — The National Electrical Manufacturers Association (NEMA) has published NEMA ICS 61800-6 TR-2015, Adjustable Speed Electrical Power Drive Systems, Part 6: Guide for Determination of ...

The H2 line of adjustable speed drives are designed to provide reliability, ease of use, and high performance. The H2 line’s superior reliability is a result of extensive testing during each design ...