Variable Frequency Drives

Some variable frequency drives are designed specifically for building automation systems, air handlers, cooling towers, and other commercial fan and pump applications. Others operate on a smaller scale. Variable frequency drives operate under the principle that the synchronous speed of an AC motor is determined by the frequency of the AC supply and the number of poles in the stator winding. Variable frequency drives accomplish part load control by varying electric motor speed, significantly reducing energy waste. Your source is here for AC drives, variable frequency drives (VFD), induction motors, Marathon motors, and more. A Variable Frequency Drive can be suitable for any general purpose application.