Electrical Equipment Replacement: Energy Efficiency versus System Compatibility

Abstract

Electrical equipment components are replaced every day because of failure, obsolescence, or upgrade. Because of technological gains, replacement components are typically more energy efficient than older equipment. Life cycle cost analyses encourage end users to select the most energy efficient equipment when replacing motors, motor drives, transformers, lamps, ballasts, etc., given costs associated with energy consumption when compared with installation. The selection of replacement parts that are compatible with existing system components and loads is critical. The purpose of this paper is to discuss fundamental electrical design principles often overlooked when replacing existing equipment with energy efficient models. NOTE: The views expressed in this paper are those of the author and do not necessarily reflect the views of the United States of America, the U. S. Department of Justice, or the Federal Bureau of Prisons.