Abstract
IEEE 841-2020 IEEE standard for petroleum and Chemical Industry—Premium Efficiency Severe Duty, Totally Enclosed (TEFC) Squirrel-Cage Induction Motors—Up to and Including 370 kW 500 hp to be issued in 2020 has been updated and improved from the 2009 version. The standard covers three-phase premium-efficiency severe-duty TEFC squirrel-cage induction motors with antifriction bearings in sizes up to and including 370 kW (500 hp). Important changes and updates have been made to the standard, including the addition of some applications for ASD motors in classified locations. Improvements to the standard are reviewed in detail. Requirements are identified that improve motor reliability and increase motor life.
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