标准号:IS 3842 Pt.3-1966
发布日期:1967/2/1 12:00:00
实施日期:1999/12/31 12:00:00
适用范围:1.1 This guide ( Part III) deals with application of phase unbalance relays, including negative phase sequence relays, for ac systems, covered by IS: 3231-1965*.1.2 This guide does not cover details regarding the principles of system design and system protection.