High Voltage Drop fuse cut out from CROP
Drop-out fuse cutout and load switching fuse cutout are of outdoor used high voltage protective device,Tube connect with incoming feeder of distribution transformer or distribution Iine,it mainly protect transformer 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 contacts is fixed on two sides of insulator support and moving contact is installed on two ends of fuse tube,Fuse tube is composed of inside arc-extinguishing tube.Outer phenolic compound paper tube or epoxy glass tube,Load switching fuse cutout provides enforced elastic auxiliry contacts and arc-extinguishing enclosure for switching on-off loading current.
At normally working via fuse link tightened the fuse tube is fixed to form up of close position,in case system occure faults,fault current result in fuse melt immediately and take piece electric are,which let arc-extinguishing tube being heated and fexplode a lot of gas,Th-os will produce high pressure and below of the are along with tube,After fuse link melt moving contact has no tightened strength again, mecganismis locked and fuse tube drop out,Cutout now is in open position,When it needs to switch off during cutout loading,operator shall via insulating operating bar pull the moving contact,atits beginning main contact and auxiliary static contacts contacted still,Whiling pulling the auxiliary contact is separated between auxiliary contacts there occur electric arc and the arc will be lengthened in arc-extinguishing enclosure gap and meanwhile arc-extinguishing explode gas to blow off the arc during current passing zero .
Detail drawing with accessories
No. &Description
1 Nut
2 Long Bolts
3 Mounting BracketⅠ
4 mounting Bracket Ⅱ
5 Porcelain Insulator
7 One-piece channel
8 Fuse tube
9 Lower Socket
10 Lower contacts
11 Connector
12 Upper Contacts
13 Attachment hooks
14 Operation Ring
More detailed information please kindly contact us feel free.
Best regards,
Christina Chiu
Sales manager assistant
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CROP TECHNOLOGY GROUP - CHINA
YUEQING CROP TRADING CO.,LTD -Export Dep.
