Requirements for 60-Hz cylindrical-rotor synchronous generators, except those covered in standard C50.14-1977, are set forth. The standard covers classification, usual service conditions, rating, temperature rise, abnormal conditions, efficiency, overspeed, telephone influence factor, tests, direction of rotation, name plate marking, and performance specification forms.
ANSI C50.13-1977 history
1989ANSI C50.13-1989 Rotating Electrical Machinery - Cylindrical- Rotor Synchronous Generators This is Now Copyrighted by IEEE
1977ANSI C50.13-1977 American National Standard Requirements for Cylindrical-Rotor Synchronous Generators