CN204905196U - Insulating arc extinction cover of drop -out switch - Google Patents
Insulating arc extinction cover of drop -out switch Download PDFInfo
- Publication number
- CN204905196U CN204905196U CN201520729553.0U CN201520729553U CN204905196U CN 204905196 U CN204905196 U CN 204905196U CN 201520729553 U CN201520729553 U CN 201520729553U CN 204905196 U CN204905196 U CN 204905196U
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- chamber
- arc
- extinguishing arc
- type switch
- insulator
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- 230000008033 biological extinction Effects 0.000 title abstract 6
- 239000012212 insulator Substances 0.000 claims abstract description 31
- 238000009413 insulation Methods 0.000 claims description 14
- 238000004880 explosion Methods 0.000 claims description 12
- 238000010276 construction Methods 0.000 claims description 3
- 238000010891 electric arc Methods 0.000 abstract description 8
- 230000001012 protector Effects 0.000 abstract description 5
- 230000005540 biological transmission Effects 0.000 abstract description 4
- 238000012423 maintenance Methods 0.000 abstract description 4
- 230000009286 beneficial effect Effects 0.000 abstract description 2
- 238000002224 dissection Methods 0.000 abstract 1
- 230000001681 protective effect Effects 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 238000009434 installation Methods 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 238000011084 recovery Methods 0.000 description 3
- 238000000354 decomposition reaction Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
Landscapes
- Arc-Extinguishing Devices That Are Switches (AREA)
Abstract
The utility model relates to a last insulating protector field of high -tension distributing line, in particular to insulating arc extinction cover of drop -out switch, the rain cover comprises a cover body, cover the internal channel part that is equipped with arc extinguish chamber, wire junction chamber, insulating seed cell and connects insulating seed cell and arc extinguish chamber, be equipped with the arc extinction core in the arc extinguish chamber, the half dissection structure of insulating seed cell for conveniently including stand insulator tip in. The arc extinction core is monolithic structure, including board shell and arc extinction piece, the arc extinction piece includes the grid tray and separates the arc island, separates arc island both sides grid tray symmetry setting, the odd number that the quantity of grid tray is more than 1 is individual. Compared with the prior art, the beneficial effects of the utility model are that: can effectively reduce or avoid distribution lines when interruption maintenance, crash handling and the recovering power transmission, draw electric arc when closing operation drop -out switch to hurt sb. 's feelings and the emergence of line -to -line short -circuit accident, also can reduce the drop -out switch brought potential safety hazards and accident to equipment, the person in the air emergence simultaneously.
Description
Technical field
The utility model relates to the insulation protecting device field on high-tension distributing line, particularly a kind of falling type switch insulation extinguishing arc cover.
Background technology
Fuse switch is the most frequently used a kind of protective switch of the short circuit of 10kV distribution line branch line and distribution transformer; but due to reasons such as fuse switch self character, equipment life and line load changes, usually need to carry out hot line job to original fuse switch.Along with the requirement of society to Reliability of Power Supplying Net Work is more and more higher, change once the failure conditions such as fuse switch generation scaling loss need to carry out repairing, live line working mode can be adopted to carry out repairing and change.In live line working process, the electrified body such as human body and cross-arm needs to keep enough safe distances, if the electrified body such as human body and cross-arm safe distance is not enough, and the life security of entail dangers to operating personnel.
Disclose one in Chinese patent 200820124276.0 and " be arranged on the protector guard shield on falling fuses device ", its structure comprises: the Part I extended respectively to above-mentioned protector both sides and Part II and the connecting portion being connected above-mentioned Part I and Part II, above-mentioned connecting portion surrounds the exposed current-carrying part of above-mentioned protector line end.The program can solve protector exposed part easily by the problem of object short circuit dropped, but the electric arc that distribution line is produced when the drawing operation falling type switch of interruption maintenance, emergency repair and recovery power transmission, then effectively can not eliminate, therefore still there is potential safety hazard.
Disclose one " fall-down fuse protective cover " in Chinese patent 93219769.8, its architectural feature is: outside fuse switch, install a frp protective coverboard additional, and on cover, be configured with cover door, and cover door inwall left and right sides is equipped with special elasticity Lock with magnetic detent controlled bolt.The Kai Heguan of hood door is realized by the magnetic code key on high-voltage insulating rod.When fuse tube falls, cover door can be opened automatically.This protective cover energy electricity theft prevention person damages fuse switch, also can realize the function of extinguishing arc simultaneously, but volume is too large, and cost is high too.
Summary of the invention
The purpose of this utility model is to provide a kind of falling type switch insulation extinguishing arc cover, and make every effort to structure simply, easy to manufacture, cost is low, easy for installation, is applicable to the falling type switch of various ways; Reduce or avoid distribution line (when normally running, foreign matter drops and causes short circuit), also avoiding distribution line when interruption maintenance, accident treatment and recovery power transmission, electric arc during drawing operation falling type switch is hurted sb.'s feelings, the generation of phase fault accident.
For achieving the above object, the utility model is achieved through the following technical solutions:
Falling type switch insulation extinguishing arc cover, comprises cover body, is provided with the channel part of explosion chamber, wire junction chamber, insulator chamber and connecting insulator room and explosion chamber, is provided with extinguishing arc core in described explosion chamber in described cover body; Described insulator chamber includes half subdivision structure of column insulator end for convenience in.
Described extinguishing arc core is monolithic construction, comprises plate shell and muffler, and described muffler comprises screen and arc island, and both sides, arc island screen is symmetrical arranged, and the quantity of described screen is the odd number of more than 1.
The end of described screen and adjacent screen is long not etc., and difference is minimum is 10mm.Described screen is saddle type.
The annular groove that in described insulator chamber, the minimum corrugated appearance being provided with a joint and column insulator matches.
The subdivision line of described insulator chamber extends to wire junction chamber, makes wire junction chamber form half subdivision structure.
The subdivision edge of described insulator chamber and wire junction chamber is provided with flange.
Described flange is provided with buckle.
Compared with prior art, the beneficial effects of the utility model are: 1) extinguishing arc cover structure is simple, cover body and extinguishing arc core relatively independent, this structure is easy to manufacture, lower than integrative-structure cost; 2) half subdivision structure installment is convenient, is applicable to the falling type switch of various ways; 3) can effectively reduce or avoid distribution line when interruption maintenance, accident treatment and recovery power transmission, electric arc during drawing operation falling type switch is hurted sb.'s feelings and the generation of phase fault accident, also can reduce falling type switch brings hidden danger and accident in atmosphere generation to equipment, the person simultaneously.
Accompanying drawing explanation
Fig. 1 is the utility model example structure schematic diagram;
Fig. 2 be in Fig. 1 A to display extinguishing arc core segment end view;
Fig. 3 is the utility model screen example structure schematic diagram.
In figure: 1-cover body, 2-explosion chamber, 3-wire junction chamber, 4-insulator chamber, 5-passage, 6-extinguishing arc core, 7-column insulator, 8-cartridge fuse, 9-duckbilled tongue, 10-wiring, 11-plate shell, 12-muffler, 13-screen, 14-arc island, 15-subdivision line, 16-flange, 17-buckle, 41-annular groove.
Embodiment
Below in conjunction with accompanying drawing, embodiment of the present utility model is described further:
See Fig. 1, it is the utility model falling type switch insulation extinguishing arc cover example structure schematic diagram, the passage 5 of explosion chamber 2, wire junction chamber 3, insulator chamber 4 and connecting insulator room and explosion chamber is provided with in cover body 1, extinguishing arc core 6 is provided with in explosion chamber 2, this extinguishing arc core is rear loading, the manufacture difficulty of cover body can be reduced like this, reduce cost; In order to the end making insulator chamber 4 can cover on column insulator 7 easily, what insulator chamber adopted is half subdivision structure.During the work of the utility model extinguishing arc cover, explosion chamber 2 covers on the moving contact at cartridge fuse 8 top, duckbilled tongue 9 is enclosed in passage 5, insulator chamber covers on the upper end of column insulator 7, wiring 10 on duckbilled tongue is passed by wire junction chamber 3, the metal position on such fuse switch top is all housed in extinguishing arc cover, and electric arc casualty accident when effectively can reduce drawing operation falling type switch occurs.In order to make the connection of the utility model extinguishing arc cover and fuse switch more firm, the annular groove 41 that in insulator chamber 4, the minimum corrugated appearance being provided with a joint and column insulator 7 matches.
See Fig. 2, be in Fig. 1 A to display extinguishing arc core segment end view, the utility model extinguishing arc core used is monolithic construction, comprise plate shell 11 and muffler 12, muffler 12 comprises screen 13 and arc island 14, and the screen 13 of both sides, arc island 14 is symmetrical arranged, the quantity of screen 13 is the odd number of more than 1, in embodiment, side screen quantity selects 3, and screen spacing n is 5 ~ 8mm.The end on arc island 14 is provided with the striking plane that wide h is 5 ~ 10mm, and the both sides of striking plane are respectively equipped with the chamfering ɑ being no less than 45 °, for decomposing electric arc and guiding in the screen of both sides.Screen 13 and the end of adjacent screen are long not etc., and difference l is minimum be 10mm, and its object is also play the effect of decomposition electric arc.
See Fig. 3, one or several the adopted saddle structure in screen 13, to improve the ability of decomposing electric arc.
Easy for installation in order to ensure extinguishing arc cover further, the subdivision line 15 of insulator chamber 4 extends to wire junction chamber 3, wire junction chamber is made also to form one and half subdivision structures, in addition, the subdivision edge of insulator chamber 4 and wire junction chamber 3 is provided with flange 16, flange is provided with buckle 17, first buckle is opened before such installation extinguishing arc cover, extinguishing arc core is inserted in explosion chamber, subsequently extinguishing arc cover is buckled in the top of fuse switch, note ensureing annular groove 41 and the docile of column insulator 7 end corrugation, then buckle is fastened.
Claims (8)
1. falling type switch insulation extinguishing arc cover, comprises cover body, it is characterized in that, is provided with the channel part of explosion chamber, wire junction chamber, insulator chamber and connecting insulator room and explosion chamber, is provided with extinguishing arc core in described explosion chamber in described cover body; Described insulator chamber includes half subdivision structure of column insulator end for convenience in.
2. falling type switch insulation extinguishing arc cover according to claim 1, it is characterized in that, described extinguishing arc core is monolithic construction, comprise plate shell and muffler, described muffler comprises screen and arc island, and both sides, arc island screen is symmetrical arranged, and the quantity of described screen is the odd number of more than 1.
3. falling type switch according to claim 2 insulation extinguishing arc cover, is characterized in that, the end of described screen and adjacent screen is not grown not etc., and difference is minimum is 10mm.
4. falling type switch insulation extinguishing arc cover according to claim 2, it is characterized in that, described screen is saddle type.
5. falling type switch insulation extinguishing arc cover according to claim 1, is characterized in that, the annular groove that in described insulator chamber, the minimum corrugated appearance being provided with a joint and column insulator matches.
6. falling type switch insulation extinguishing arc cover according to claim 1, it is characterized in that, the subdivision line of described insulator chamber extends to wire junction chamber, makes wire junction chamber form half subdivision structure.
7. falling type switch insulation extinguishing arc cover according to claim 6, it is characterized in that, the subdivision edge of described insulator chamber and wire junction chamber is provided with flange.
8. falling type switch insulation extinguishing arc cover according to claim 7, it is characterized in that, described flange is provided with buckle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520729553.0U CN204905196U (en) | 2015-09-21 | 2015-09-21 | Insulating arc extinction cover of drop -out switch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520729553.0U CN204905196U (en) | 2015-09-21 | 2015-09-21 | Insulating arc extinction cover of drop -out switch |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204905196U true CN204905196U (en) | 2015-12-23 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520729553.0U Active CN204905196U (en) | 2015-09-21 | 2015-09-21 | Insulating arc extinction cover of drop -out switch |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204905196U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105161385A (en) * | 2015-09-21 | 2015-12-16 | 国网辽宁省电力有限公司鞍山供电公司 | Drop switch insulation arc suppression cover |
-
2015
- 2015-09-21 CN CN201520729553.0U patent/CN204905196U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105161385A (en) * | 2015-09-21 | 2015-12-16 | 国网辽宁省电力有限公司鞍山供电公司 | Drop switch insulation arc suppression cover |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |