Best selling certification 33kv drop out fuse cutout

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Product Overview

Description


 

 


Product Description


 


 Drop-out fused cut out and load Switching fuse cutout are of outdoor used high voltage protective device.To be connected with incoming feeder of distribution line it mainly protect transformer or lines from short circuit and overload,and on/off loading current. 


Drop-out fused cut out is composed of 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-estinguishing tube, outer phenolic compound paper tube or epoxy glass tube,Load switching fuse cutout provides enforced elastic auxiliary contacts and arc-extinguishing enclosure for switching


on/off loading current. At normally working via fuselink tightened the fuse tube is fixed to form up of close position.In case system occur faults, fault current result in fuse melt immediately and take place electric arc which let arc-extinguishing 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 strength again, mechanism is locked and fuse tube dropout.


Cutout now is in open position.When it needs to switch off during cut out loading. operator shall via insulating operating bar pull the moving contact, at its beginning main contact and auxiliary static contact is contacted sillWhiling 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.


 


Technical specification


 





































Type

Rated Voltage


(kV)



 Rated Current


(A)



 Breaking Current


(kA)



 Impulse Voltage Bil


(BIL)


 Power-frequency Withstand Voltage

 Creepage distance


(MM)



 Weight


(kg)



 Dimensions


(CM)


 HPRW-33 33 100 8.0 170 70 900 8  64x36x18
 HPRW-33 33 200 10 170 70 900 8

 


Best  selling certification  33kv drop-out fuse cutoutBest  selling certification  33kv drop-out fuse cutout 


 




 

 


Company Introduction


Best  selling certification  33kv drop-out fuse cutout 




 

 


Certification


Best  selling certification  33kv drop-out fuse cutout 




 

 


Customer


Best  selling certification  33kv drop-out fuse cutout 




 

 


Work Shop


Best  selling certification  33kv drop-out fuse cutout 




 

 


Inspection & Package


Best  selling certification  33kv drop-out fuse cutout 




 

 


fuse























 


0.0079 s.