Helpful Resources - ASD's

Application Guide for AC Adjustable Speed Drive Systems
(National Electrical Manufacturers Association, 2001) This guide is available free of charge on NEMA’s website, www.nema.org, under “Standards.” This guide is intended to assist users in the proper selection and application of AC adjustable-speed drive systems.

Variable Frequency Drives: Technical Data Sheet (Wisconsin’s Focus on Energy program, 2004)
This piece on drives details benefits of using drives and some common applications for which drives work well. It also gives a brief technical overview of how drives function, along with examples of potential savings. It is available at Focus on Energy.