Drop-out fuse product introduction
Drop-out fuse cutout and load switching fuse cutout are of outdoor used high voltage protective device.To be connected with incoming feeder of distrbution transformer or distrbution overload,and on/off loading current.Drop-out fuse cutout is composed of insualt insulator suppors and fuse tube,static contact is installed on two ends of fuse tube,static contacts is fixd on two sides of insulator support and moving contact is installed on two ends of fuse tube,outer auxiliary contacts and arc-extinguihing encloure for switching on/off loading current.
At normally working via fuselink tightened the fuse tuble is fixed to form up of close position.In case system occur fault current result in fuselink melt moving contact has no tightened strength again,mechanism is locking,operator shall via insulating cperating bar pulling the auxiliary contact is separated between auxiliary contacts there occur electirc arc will be lengthened in arc-extiguishing enclosure gap and meanwhile arc-extinguishing explode gas to blow off the arc during current passing zero.
