Introduction to IEEE 841-2001, IEEE standard for petroleum and chemical industry-severe duty totally enclosed fan-cooled (TEFC) squirrel-cage induction motors-up to and including 370 KW (500 HP)

IEEE 841-1994, IEEE Standard for Petroleum and Chemical Industry Severe Duty Totally Enclosed Fan-Cooled (TEFC) Squirrel-Cage Induction Motors-Up to and Including 500 hp, issued in 1994, has been updated and improved. The scope includes three-phase severe duty TEFC squirrel-cage induction motors with antifriction bearings in sizes up to and including 370 kW (500 hp) and motor rated voltages of 200, 230, 460, 575, 2300, and 4000 V at 60 Hz. Changes to the standard are reviewed in detail. Requirements are identified that improve motor reliability and increase motor life.