HV Drop Out Fuse Cutout - JULAN Electric

HV Drop Out Fuse Cutout

It is connected with the incoming feeder of the distribution transformer or distribution lines and primarily used to protect transformers or lines against the impact raised by short circuit, overload and switching current.

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Product information

Drop Out Fuse Cutout is a kind of outdoor high voltage protection device.It is connected with the incoming feeder of the distribution transformer or distribution lines and primarily used to protect transformers or lines against the impact raised by short circuit, overload and switching current. The drop-out fuse cutout is composed of insulator support and a fuse carrier, static contacts that are fixed on two sides of insulator support and moving contact installed on two ends of fuse carrier. The interior of the fuse carrieris the extinguishing tube while the exterior is made of phenolic compound paper tube or epoxy glass.

During normal operation, the fuse linkis tightened to form the closing position. In fault current situation, the fuse link melts and an electrical arc is formed. The arc-extinguishing tube is heated and explosion of gas occurs which causes high pressure inside the fuse carrier tube and makes the tube to separate from the contacts. The contact is relaxed once the fuse element melts.

The fuse cutout is now in the open position, the operator needs to switch the current off. The moving contact can be pulled off by an insulated hot sticker. The main contact and auxiliary contact are connected.

 

Outdoor Fall Fuse

Votage Type Rated
voltage(kV)
Rated
curent(A)
Breaking
curent(A)
fnpulse
voltage(BIL)
Power-frequency
withstand voltage(kV)
Crwhng
distance
Weich(kg) Product Price(S)
12kv-15kv RS-7 15 100 10000 110 42 230mm 7 16.5
12000
RH-8 10000 7.3
12000
24kv R-97 24 100 8000 150 50 500m m 12 22.5
10000
24kv-27kv R-12 24 100 8000 150 65 540m m 12 25.5
200 10000
33kv-36kv R-18 36 100 10000 170 70 720mm 5 25.5
200 12000

 

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Dropout Fuse Cutout