AC drives, DC drives, variable frequency drives, electrical training... Subscribe to Our Newsletter Learn About AC Drives, Electric Motors, & Stuff Your email address Your name... Company? Comments About our Expert - James M. Shumberg Copyright 1996 - 2004 Drive Systems, Inc. ...

AC drives, DC drives, variable frequency drives, electrical training... Ask the Expert (What's your drive question?) Do DC Drives Still Have a Place? Training Seminar Schedule (At... changing so check back often. If you are currently working on a project then tell us about your project Introduction to AC Drive Theory by James M. Shumberg Variable frequency drives... are sometimes called AC drives (the author's preference), adjustable frequency drives, VFDs, or inverters. VFDs provide us a reliable means of adjusting or changing the frequency...

working on a project then tell us about your project Introduction to AC Drive Theory by James M. Shumberg Variable frequency drives are sometimes called AC drives (the author's... preference), adjustable frequency drives, VFDs, or inverters. VFDs provide us a reliable means of adjusting or changing the frequency of alternating current applied to the motor... and thereby changing the motor speed. Learn More About AC Drives About AC Induction Motors Most industrial AC induction motors, manufactured in the US, are designed to operate...

is the function of the variable frequency drive (VFD or AC drive). The Stator (Stationary Part) The rotating magnetic field is produced by the coil windings when AC power is applied...Learn More About AC Induction... About AC Motors "The heart of all AC drive systems is the motor." The Purpose of the Electric Motor The purpose of any electric motor... is to convert electrical power into mechanical power. Induction Motors The most common electric motor found in industrial and comercial application is the AC induction motor. Induction motors...

drives (VFD) used to refer to the drive as just that, a "variable frequency drive". More manufacturers are referring to their drive as an "adjustable speed AC drive". To make matters... worse when a motor is included in the package it may be referred to as an "adjustable speed AC drive system". A variable frequency drive is an adjustable speed drive. Adjustable... to the variable frequency inverter alone. A little about AC drives The main power components of an AC drive, have to be able to supply the required level of current and voltage...