NEMA C50.41-1982 PDF

Scope: Inclusions. The requirements in this standard apply to 60-hertz polyphase induction motors intended for use in power generating stations@ including the following (1) Frame size larger than NEMA 440 (2) Squirrel-cage type (3) Single speed or multispeed (4) Horizontal or vertical construction Exclusions. Excluded from the scope of this standard are: (1) Additional specific features that may be required for application in nuclear-fueled power gene rating stations (2) Additional specific features required in motors for use in locations involving hazardous (classified) locations. (3) Starting motors for reversible synchronous generator/motor units for pumped storage installations (4) Wound-rotor motors

NEMA C50.41-1982 history