Motor repair standards for increased efficiency and reliability updated
An updated edition of the repair of motors and generators—ANSI/EASA AR100-2015: Recommended Practice for the Repair of Rotating Electrical Apparatus—was recently published for use by the repair industry and its customers. The standard describes industry best practices for the repair, rewinding, and testing of electrical apparatus in order to maintain or enhance the energy efficiency and reliability of both ac and dc
motors and generators.
The revision introduced new requirements, added or tightened performance tolerances in several critical areas, and expanded testing procedures. The standard now includes requirements relating to the machining of commutators and slip rings, and establishes temperature limits for the process of removing motor windings. Additional performance tolerances were added for balancing motors rated above 2500 rpm. Finally, testing procedures were established or clarified relating to bearing insulation, winding surge comparison and resistance, no-load performance and vibration.
– Edited from an EASA press release by CFE Media. See more Control Engineering motor and drive stories.