Home

Outdoor high-voltage dropout fuse 35kV and the following outdoor high-voltage dropout fuse is mainly the dropout high-voltage fuse. Mainly uses in protecting the transmission line and the distribution transformer

This kind of fuse is composed of the fixed support and the active fuse tube. The fuse tube (melt tube) to be made by the resin level volume cardboard, middle lining by asbestos. Bakes the silk both sides to compression-join the knitting copper wire which respectively section of connections use, it passes through a fuse tube, use screw fixed high and low both sides' moving contact, the movable contact is been fixed by the fuse tautness, and "the duck mouth" the raised brace is caught by on static contact on, the fuse is in "the circuit" the position, the fuse melts is on the new time. In the fuse tube produces the electric arc. The tube bakes' inner wall to produce the much gases under the electric arc function, the high gas spouts outward, has the intense free function, has extinguished the electric arc when the electric had passed the normal current. At the same time, after the fuse link breaked, blows a fuse on tube's on The contact loosens, as a result of fuse tube dead weight, but "the duck mouth " slides from on static contact, the rapid instep falls. After this fuse's tube breaked. Depreciation automatic, For makes the fuse indication and also  causing one obviously, to separate the distance, plays the f disconnecting switch's role. Also for  it may use the high-pressured insulation drag bar the operating lever, pulls gathers when the idling line or the 560kVA following power distribution idling transformer (pulls the floodgate, only uses the high-pressured insulation operation mast top to move "the duck mouth", blows a fuse tube namely to be able the instep to fall the cut-off idling circuit voluntarily; When the knife switch closing, Use the insulating stud to push the fuse tube one by one to come up. Can  connection idling circuit), SO the dropout fuse have a wide use in the electrical power distribution system.

The dropout fuse may also make a reclosing floodgate, it has two set of fuse tubes. In  normal, only one set of fuse tube connection after the fuse cutout. asked that separates one fixed time with (about 0.3-0.5s), another set taking advantage of the automatic heavy reclosing floodgate, but in the automatic reclosing also promotes to the low-power 35kV transformer uses the instep to fall the type fuse protection, namely Rw5 35, use in replacing old product type _Rwl 35 high-voltage fuse. It is similar with the 10kV dropout fuse,only fuse tube is more longer. Dimensions are more bigger (two static contacts use two stand-off insulators fixedly).

Related Information

• About the vacuum circuit-breaker
• The zinc oxide arrester's principle of work
• Countryside distribution transformer's lightning protection
• Outdoors high-voltage fuse's application
• High-voltage breaker's function and classicy
• The high-voltage's standard terminology and noun explanation
• The difference between the circuit breaker and the disconnecting switch
• Arrester's Introduction