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IEEE - ANSI C37.16 - LOW-VOLTAGE POWER CIRCUIT BREAKERS AND AC POWER CIRCUIT PROTECTORS PREFERRED RATINGS, RELATED REQUIREMENTS, AND APPLICATION RECOMMENDATIONS - REPLACES NEMA C37.16-2000 Organization: IEEE
Date: 2000-01-01
Description: This standard was first published by the American Standards Association (now the American National Standards Institute) in 1956, using material developed by the National Electrical Manufacturers Association (NEMA). Reference should be made to the appropriate American National Standards for service conditions, definitions, ratings, temperature limitations, classes of insulating material, nameplate markings, dielectricwithstand requirements, test requirements, and application standards.
API STD 541 - FORM-WOUND SQUIRREL CAGE INDUCTION MOTORS-375 KW (500 HORSEPOWER) AND LARGER - FIFTH EDITION Organization: API
Date: 2014-12-01
Description: NOTE A special purpose machine typically has one or more of the following characteristics: 1) is in an application for which the equipment is designed for uninterrupted, continuous operation in critical service, and for which there is usually no installed spare equipment; 2) is larger than 2250 kW (3000 hp) for speeds 1800 rpm and below; 3) is rated 600 kW (800 hp) or greater for two pole (3000 rpm or 3600 rpm) machines of totally enclosed construction, or rated 930 kW (1250 hp) or greater for two pole machines of open or guarded construction (including machines with WP-I or WP-II type enclosures); 4) drives a high-inertia load (in excess of the load Wk2 listed in NEMA MG 1, Part 20); 5) uses an adjustable speed drive (ASD) as a source of power; 6) is an induction generator; 7) is a vertical machine rated 375 kW (500 hp) or greater; or 8) operates in abnormally hostile environments.
IEEE C37.18 - STANDARD ENCLOSED FIELD DISCHARGE CIRCUIT BREAKERS FOR ROTATING ELECTRIC MACHINERY Organization: IEEE
Date: 1979-01-01
Description: This standard was first published in 1962 as IEEE Publication No 90 for trial use. It was also published as NEMA Std SG3-1965, Low-Voltage Power. After a period of industry use the material was reviewed and revised and published as USA Std 37.18-1968 (R1975), Requirements for Field Discharge Circuit Breakers for Rotating Electric Machinery, and USA Std C37.16a-1968, Supplement to USA Std C37.16-1963, Preferred Ratings and Related Requirements for Low-Voltage Power Circuit Breakers.

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