Available for the CFW-11 variable-speed drive, the Pump Genius process control software manages and monitors up to six pumps in a coordinated system. It can operate motors from 5-150 hp in the 208- ...

Download this article as a .PDF Variable speed drives (VSDs), sometimes also known as variable frequency drives, are electronic devices used to regulate the speed of an ac induction motor.

Variable speed drives are the usual way of approaching this goal. The typical way of controlling ac motor speed is with an inverter. The ac from the grid is first rectified to dc.

Applications Variable frequency drives are used for two main reasons: To improve the efficiency of motor-driven equipment by matching speed to changing load requirements. To allow accurate and ...

The Telemecanique Altivar 71 variable-speed ac drive sports dual microprocessors running motor-control algorithms.

Motors and Variable Speed Technology “Most motors are moving into some sort of variable speed technology,” said Dave Mayer, product manager at Greenheck, PRV & Roof Curbs. He explained that this could ...

The term VFD is often used interchangeably with AC drive, inverter, or adjustable-frequency drive (AFD). The two most common circuits for adjusting the speed of an AC squirrel cage induction motor are ...

ISABy Bryan Sisler When powering AC motors, the electrical supply can be at full power to run at full speed or at variable power to run at variable speed. Applications with varying loads benefit from ...

This family of drives is comprised of the Z1000 variable speed drive as well as the Z1000 Bypass Package designed specifically for commercial HVAC applications The Z1000 Variable Speed Drive is ...

Bender Shipbuilding and Repair, and Otto Candies have executed a contract calling for the construction of three 240 x 54 x 20 ft. (73.1 x 16.4 x 6 m) Diesel Electric Variable Frequency Drive ...

Finland-based Danfoss Drives is supplying variable-speed AC drives for the propulsion systems of the Finnish Navy’s four Pohjanmaa-class multi-role corvettes. Part of the Finnish Defense ...