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 ...
Crailsheim, Germany/York, PA (May 19, 2017) – Voith introduces the first member of a new product family in the field of speed control for compressors and pumps: the VECO-Drive. It is an electric ...
The thyristor d.c. drive remains an important speed-controlled industrial drive, especially where the higher maintenance cost associated with the d.c. motor brushes (c.f. induction motor) is tolerable ...
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