HYBRID SWITCHGEAR──THE NEW GROWING POINT OF SWITCHGEAR AS VIEWED FROM FCL

The current-limiting interrupting device(CLID)is a higher level outcome of the traditional circuit breaker development.Traditional contact switch(or trigger gap)being appropriately hybridized with contactless device,i.e.GTO,super conducting device and thermal sensitive device will dominate the future development of switchgear.Through explaining several typical CLID principles,this paper analyzes the tendency of hybrid switchgear and suggests that switchgear works should step up the research and development of such device.