High Voltage Cut Out Fuse / Dropout Fuse
Dropout fuse cutouts and load switching fuse cutouts are for outdoor used high voltage protective device. To be connected with in coming feeder of distributing transformer or distribution lines. It mainly protect transfeormer or lines from short circuit and overload, and on/off loading current.Drop out fuse cutout is composed of insulator supports and fuse tube, static contacts are 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-exting tube, outer phenolic compound paper tube or epoxy glass tube.Load switch fuse cutout provides enforced elastic auxiliary contacts and arc-extinguishing enclosure for switching on/off loading current.
In the norman working, the fuse tube is formed up of close position via the fuse link tightened. In case the system occur faults, faut current results in fuse melt immediately and forms electric arc, which let arc-extinguishing tube be heated and explode a lot of gas. Those will produce high pressure and blow off the arc along with tube immediately. After fuse link melt, the moving contact drops out without tightened strength, mechanism is locked and fuse tube drop out, then form a distinct open position. When it needs to disconnect in loading, the operator shall pull the moving contact via insulating operating bar. At the moment, the main contact and auxiliary static contact are still contacted. Be continued to pull the contact, then the auxiliary contact is separated, it produced the electric arc between the auxiliary contacts. The arc is lengthened in arc-extinguishing enclosure gap, meanwhile, the arc shield explode gas to blow off the arc during the current passes zero.
Rated voltage: 10KV, 11KV, 15KV, 24KV, 27KV, 30KV, 33KV, 36KV, 38KV etc.
Material: Porcelain type, Polymeric type.
12kv-15kv High Voltage Dropout Fuse
| type |
rated volage
(kv) |
rated
current
(a) |
breaking
current
(a) |
impulse
volage
(bil) |
power-frequency
withstand voltage (kv) |
leakage distance
(mm) |
weight
(kg) |
dimensions
(cm) |
| HQF-103 |
15 |
100 |
10000 |
125 |
45 |
330 |
8 |
51×32.5×12 |
| HQF-203 |
15 |
200 |
12000 |
125 |
45 |
330 |
8.5 |
We main produce HV Dropout Fuse, Lightning Arrestor, Isolate Switch, Poleline Hareware,solar photovoltaic fittings,etc. Welcome to contact us for business.
Cowin Electrical Co., Ltd, is located in the largest manufacturing base of low-voltage electric equipment of Liushi China, which is called "the Electric Device Metropolis of China".
Cowin Electrical Co., Ltd is a leading company in the electrical indutry, import and export trade.
Cowin regards quality of products as life. We have standard Management System. We produce and widely sell over 300 series, more than 10000 types in high-and-low voltage electrical device, complete equipment, power transformer, cable and wire, instrument and meter, welding equipment, which are praised by all users. A number of new independent intellectual property right, intelligent appliances is moving into the market.
We are keeping our business principles for "Approaching the first-class management, producing the first-class products, providing the first-class service". All Cowin staffs are working hard and constantly innovate. Honest Cowin are welcome to all users to fighting a better tomorrow hand in hand.
We main produce HV Dropout Fuse, Lightning Arrestor, Isolate Switch, Poleline Hareware,solar photovoltaic fittings,etc. Welcome to contact us for business.
DONNE JIANG
Cowin Electrical Co., Ltd
Audited Supplier 
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