API STD 547

Description

Covers the requirements for form-wound induction motors for use in general-purpose petroleum, chemical and other industrial severe duty applications. These motors: • are rated 250 hp (185 kW) through 3000 hp (2250 kW) for 4, 6 and 8 pole speeds, • are rated less than 800 hp (600 kW) for two-pole (3000 or 3600 RPM) motors of totally-enclosed construction, • are rated less than 1250 hp (930 kW) for two-pole motors of WP-II type enclosures, • drive centrifugal loads, • drive loads having inertia values within those listed in NEMA MG 1 Part 20), • are not induction generators.