Double power source auto switch
The national standards as well as the IEC standard the ATSE classification are the PC level and the CB level two ranks, because CB level ATSE has the volume to be big, the movement speed is slow, the mechanical interlocking reliability inferior shortcoming, its application domain is reducing gradually, but PC level ATSE because its structure is simple, the volume is small, own interconnection, the conversion rate is quick, safe, reliable has become ATSE the mainstream. This article is precisely from the ATSE developing process, the development trend and PC level ATSE obtains in the project application, has carried on the essential elaboration to PC ⅠⅠlevel ATSE. Key word: ATSE double power source automatic change-over; Mechanical interlocking; Electrical isolation; Time delay hypothesis; Non-title documents.