Standard Details
This standard applies to premium efficiency totally enclosed fan-cooled (TEFC), horizontal and vertical, single-speed, squirrel cage polyphase induction motors, up to and including 370 kW (500 hp), and 4000 volts in National Electrical Manufacturers Association (NEMA) frame sizes 143T and larger, for petroleum, chemical, and other severe duty applications (commonly referred to as premium efficiency severe duty motors). Excluded from the scope of this standard are motors with sleeve bearings and additional specific features required for explosion-proof motors.
Standards Committee | |
Status |
Active
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Board Approval |
2009-03-19
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History |
Published Date:2009-08-17
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Additional Resources Details
PAR |
Working Group Details
Working Group |
841_WG - Totally Enclosed Fan-Cooled (TEFC) Squirrel Cage Induction Motors Working Group
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Working Group Chair |
Donald Dunn
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Standards Committee | |
Society | |
IEEE Program Manager | |
Active Projects |
Premium efficiency, totally enclosed fan-cooled (TEFC), horizontal and vertical, single speed, squirrel cage polyphase induction motors from 0.75 kW up to including 370 kW (1 hp to 500 hp), and 4000 V in National Electrical Manufacturers Association (NEMA) frame sizes 143T and larger, for petroleum, chemical, and other severe-duty applications (commonly referred to as premium-efficiency severe-duty motors) are the focus of this standard. Motors with sleeve bearings and additional specific features required for explosion-proof motors are excluded from the scope of this standard.
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Existing Standards |
This standard applies to high-efficiency TEFC, horizontal and vertical, single-speed, squirrel cage polyphase induction motors up to and including 500 hp, in NEMA frame sizes 143T and larger, for petroleum, chemical, and other severe duty applications (commonly referred to as severe duty motors). Excluded from the scope of this standard are motors with sleeve bearings and additional specific features required for explosion-proof motors.
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