Electric motor selection

Abstract

"Electric motors are used for a multitude of tasks. The use of this equipment has relieved us from tedious and time-consuming chores. For example, a 1 horsepower (HP) motor that is about 75 percent efficient will consume approximately 1,000 watts. Thus, a general rule for electric motors is 1 horsepower-hour equals 1 kilowatt-hour. One horsepower-hour is equivalent to one person working 10 hours. A 1 HP motor can do in one hour for about 6[cents] what it would take a person about 10 hours to do. Electric motors will continue to be used for new jobs around the farm as long as the price and scarcity of labor continue to increase. Once you determine that a motor is required for a particular task, you must decide on one of a variety of types, classes, efficiencies, and makes. This booklet provides an explanation of the various terms used and compared different electric motors."--Page 1.