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6 Specification of Electric Motors 1.1 Electric Motors The electric motor is a machine capable of converting electrical energy into mechanical energy. The induction motor is the most widely used type of motor because it combines all the advantages offered by the electrical energy such as
levels for electric motors and their use with variable speed drives. Also referred to as EU MEPS (European Minimum Energy Performance Standards), the effi ciency levels for electric motors are determined in two IEC standards: IEC/EN 60034-30-1, which details the effi ciency classes in the form of ‘IE’
Product details. Generate Documents. Representative Image Only. With cast iron frame, flexible mounting, solid and whole feet, and lower noise levels and operating temperatures, the W22 motors are perfectly suitable for a great variety of industrial applications. Product features.
PREMIUM EFFICIENCY MOTOR SELECTION AND APPLICATION GUIDE | i ACKNOWLEDGMENTS The Premium Efficiency Motor Selection and Application Guide and its companion publication, Continuous Energy Improvement in Motor-Driven Systems, have been developed by the U.S. Department of Energy (DOE) Office of Energy Efficiency and Renewable Energy (EERE) with support from the Copper Development Association (CDA).
A worldwide energy efficiency classification system now exists for low voltage three-phase asynchronous motors. This system increases the level of harmonization in efficiency regulations around the world. International Electrotechnical Commission (IEC) standard IEC/EN 60034-30:2008 defines energy-efficiency (IE code)
Selection: The horsepower required by the fan should be determined based on handling “standard” air at 70°F temperature with a density of 0.075 pounds per cubic foot. Minimum air velocity in feet per minute listed in Table 29 must flow directly over the motor frame for continuous operation at rated horse-power.
Motors designed to meet the needs of the Allen-Bradley PowerFlex® drives. Today’s industries are looking for high quality, highly effi cient motors that will stand up to the exceptional demands on them, such as the extreme thermal and electrical demands of low speed, high torque applications.
