Revision Standard - Active.Service conditions, electrical ratings, thermal ratings, and testing requirements are defined for relays and relay systems used to protect and control power apparatus. This standard establishes a common reproducible basis for designing and evaluating relays and relay systems.
Số hiệu tiêu chuẩn
IEEE C 37.90
Tên tiêu chuẩn
Relays and relay systems associated with electric power apparatus
Ngày phát hành
2005-00-00
Từ khóa
Current ratings * Definitions * Durability * Electrical engineering * Electrical equipment * Electrical properties * Mechanical properties * Protective relays * Rated voltages * Ratings * Relays * Specification (approval) * Testing * Voltage measurement * Voltage rating * Storage quality * Electrical properties and phenomena * Endurance tests