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Drop-out fuse
Drop-out fuse is 10 kV power distribution line branch line distribution transformer and the most commonly used a short circuit protection switch, it has economic, convenient operation, adapt to the outdoor environment strong sexual characteristics, widely used in 10 kV power distribution lines and distribution transformer protection as a side and equipment for the operation, cut with.
instructions
It installed in 10 kV power distribution line branch line, narrow scope blackout, because of its have a high pressure cascade fuse obvious disconnect point, has the function of isolating switch, to overhaul period of lines and equipment to create a safe working environment and increased maintenance staff sense of security. Installed in the distribution transformer, and could be used as distribution transformer protection of the Lord, so, in 10 kV power distribution lines and distribution transformer widely used.
Working principle
Melt fiber tube on both ends of the dynamic contacts rely on melting silk (melt) fasten, will move on the contactor push the "duck lips" bulge of cascade fuse points, made of copper phosphorus, the static contact of the upper head dynamic contacts, so melt fiber tube firmly stuck in "the duck mouth". When a short circuit current through the wire fusing melt, produce electric arc, melting of silk pipe with GangZhi tubes in the arc the influence of large amounts of gas because of melting fiber tube top be sealed, to lower gas jet, blowing out arc. Due to melting silk fusing, melting of fiber tube and move contacts lose the melt silk fasten force, in its own gravity melt fiber tube and, under static contact head under the action of the spring of molten pool and fiber tube falling rapidly, the circuit disconnect, resection for fault line or fault equipment.
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| Company: |
Shiajiazhuang Histe Electric Co.,Ltd Hebei Province China
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| Contact: |
Ms. Nancy liang |
| Address: |
No 6, huaiyuan Road |
| Postcode: |
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| Tel: |
86 311 82232877 |
| Fax: |
86 311 82232877 |
| E-mail: |
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