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 ...

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 National Electrical Manufacturers Association, (NEMA), Rosslyn, Va., recently released two new standards: ICS 7-2000, Adjustable-Speed Drives, and ICS 7.1-2000, Safety Standards for Construction ...

Imagine an easy-to-install industrial technology that reduces energy consumption, eliminates mechanical vibrations and electronic harmonics, relaxes alignment tolerances and cuts maintenance needs.

Arkansas-based Baldor Electric Co. launched a new direct drive technology for the cooling tower industry that improves reliability, reduces maintenance, runs quieter, and saves energy. The Adjustable ...

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 ...

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 ...

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 ...