Drop-out fuse FRDQ-27/14

At normally working via fuselink tightened the fuse tube is fixfed to form up of close position.In case system occure faults,fault current result 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 fuselink melt 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,operat-or shall via insulating operating bar pull the moving contact,atits beginning main contact and auxiliary static contactic contactedst-ill, Whiling pulling the auxiliary contact is separated between auxiliary contacts there occur electric arc and the arc will be lengthene-d in arc-extinguishing enclosure gap and meanwhile arc-exting explode gas to blow off the arc during current passing zero. a. Your inquiry will be replied within 12hrs b. We offer you professional service in fluent English c. Keep the mass production as the sample in high quaity d. Freight forwarder:faster,safer,and convenient e. Quality: We have Quality management system each process a, Over 20 years of manufacturing experience with good quality & stable product performance. b, We provides full line of MV-HV electrical products, including drop-out fuse, disconnector, surge arrester, vacuum circuit breaker, fuse, load switch, insulator etc. c, Quick feedback, Timely quotation, Fast delivery d, Complete set of testing machine to ensure product quality. e, We can customize non-standard product as per client’s requirement.