IS 4889-1968

标准号：IS 4889-1968
发布日期：1969/3/1 12:00:00
实施日期：1999/12/31 12:00:00
适用范围：This standard covers methods of determining efficiencies of dc, ac synchronous and induction machines from tests, and methods of obtaining particular losses when these are required for other purposes.Note — The principles can, however, be applied to other types of machines, such as rotary convertors, ac commutator motors and single-phase induction motors for which other methods of determining losses are generally applied.