Test Equipment for Determining Performance of Electric Motors

Abstract

Large quantities of electric power are used by electric motors in the production and processing of food, feed, and fiber. The literature indicates that many individuals responsible for the selection and application of motors have a limited knowledge of motor performance characteristics - specifically, efficiency and power factor. To enhance student understanding of these concepts, two motor testing stations were assembled. A manually operated motor testing station provides students an opportunity for hands-on laboratory exercises in determining efficiency and power factor. A computer-assisted motor testing station allows students to experience a complete motor test, described by the IEEE Standard 114-1982, using a menu-driven interface to computerize the data collection process. Motor performance data is graphically represented on a monitor, printer, or plotter. Instructors and students have expressed that using those state-of-the-art stations enhances instructional effectiveness and student learning.