Origin |
China |
Breaking Capacity |
High |
Safety Standards |
IEC |
Usage |
High Voltage |
Hight-Voltage Fuse Cutout Drop-out fuse cutout is outdoor used high voltage protective device,To be connected the incoming feeder and distribution transformer or distribution lines it mainlly protect tansfomer or lines from short circuit and overload,and on/off loading current ,Drop-out fuse cutout is composed of insulated insulator supports and fuse tube,static conntacts is fixed on two sides of insulator support and moving contacts,contacts is installed on two ends of fuse tube.Fuse tube is composed f inside arc-extinguishing tube outer phenolic compound paper tube or epoxy glass and arc-extiguishing exclosure for switching on/off loading current.
At nnormally working via fusellink tightened the fuse tube is fixed to form up of close position,In case system occure faults,fault current result guishing melt immediately and take place electric arc ,which let arc-extin-guishing tube being heated and explode a lot of gas,this Will produce high pressure and blow off the arc along with tube,After fuselink melt moving contact has no tightened sstrenngth again mechianism is locked ad fuse tube drop out,Cutout now is in open position,When it needs to switch on or off during cutout loading ,operator shall via insulating operaating bar pull the moving contact
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