CN105161385A - Drop switch insulation arc suppression cover - Google Patents
Drop switch insulation arc suppression cover Download PDFInfo
- Publication number
- CN105161385A CN105161385A CN201510603938.7A CN201510603938A CN105161385A CN 105161385 A CN105161385 A CN 105161385A CN 201510603938 A CN201510603938 A CN 201510603938A CN 105161385 A CN105161385 A CN 105161385A
- Authority
- CN
- China
- Prior art keywords
- chamber
- insulator
- arc suppression
- extinguishing arc
- type switch
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
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Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H85/00—Protective devices in which the current flows through a part of fusible material and this current is interrupted by displacement of the fusible material when this current becomes excessive
- H01H85/02—Details
- H01H85/04—Fuses, i.e. expendable parts of the protective device, e.g. cartridges
- H01H85/05—Component parts thereof
- H01H85/165—Casings
Landscapes
- Arc-Extinguishing Devices That Are Switches (AREA)
Abstract
The invention relates to the field of insulation protection devices in a high-voltage distribution line, and particularly relates to a drop switch insulation arc suppression cover, which comprises a cover body. The cover body is internally provided with an arc suppression chamber, a wire connection chamber, an insulator chamber and a channel part connecting the insulator chamber and the arc suppression chamber, wherein the arc suppression chamber is internally provided with an arc suppression core; the insulator chamber has a semi-split structure which can accommodate the end part of a post insulator conveniently; the arc suppression core has an integrated structure and comprises a plate shell and an arc suppression sheet; and the arc suppression sheet comprises grid plates and arc isolation island, the grid plates at two sides of the arc isolation island are arranged symmetrically, and the number of the grid plates is an odd number more than one. Compared with the prior art, the drop switch insulation arc suppression cover has the beneficial effects that arc injuries and phase-to-phase short circuit accidents caused by closing the drop switch when the distribution line is subjected to interruption maintenance, accident processing and power recovering can be effectively reduced or avoided, and unsafe hidden dangers and accidents caused to the equipment and the human body by the drop switch in the air can be reduced.
Description
Technical field
The present invention 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 object of the present invention is to provide a kind of falling type switch insulation extinguishing arc cover, 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 present invention is achieved by 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 invention has the beneficial effects as follows: 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 embodiment of the present invention structural representation;
Fig. 2 be in Fig. 1 A to display extinguishing arc core segment end view;
Fig. 3 is screen example structure schematic diagram of the present invention.
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, the specific embodiment of the present invention is described further:
See Fig. 1, it is falling type switch of the present invention 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 extinguishing arc cover work of the present invention, 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 extinguishing arc cover of the present invention 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 present invention's 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 |
|---|---|---|---|
| CN201510603938.7A CN105161385A (en) | 2015-09-21 | 2015-09-21 | Drop switch insulation arc suppression cover |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510603938.7A CN105161385A (en) | 2015-09-21 | 2015-09-21 | Drop switch insulation arc suppression cover |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105161385A true CN105161385A (en) | 2015-12-16 |
Family
ID=54802208
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510603938.7A Pending CN105161385A (en) | 2015-09-21 | 2015-09-21 | Drop switch insulation arc suppression cover |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105161385A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108666919A (en) * | 2018-06-15 | 2018-10-16 | 国家电网有限公司 | A kind of integration pole type transformer platform complexes |
| CN109888663A (en) * | 2019-03-07 | 2019-06-14 | 国网上海市电力公司 | A kind of fuse can live line work insulating shield |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1400620A (en) * | 2001-08-07 | 2003-03-05 | 武汉雷泰电力技术有限公司 | Full-insulating high-voltage drop-off fuse |
| CN102376474A (en) * | 2010-08-23 | 2012-03-14 | 上海电科电器科技有限公司 | High-breaking-capacity arc extinguish chamber of circuit breaker |
| CN203071034U (en) * | 2013-02-05 | 2013-07-17 | 帝凯（厦门）电气有限公司 | Arc extinguishing device for fuse |
| CN204905196U (en) * | 2015-09-21 | 2015-12-23 | 国网辽宁省电力有限公司鞍山供电公司 | Insulating arc extinction cover of drop -out switch |
-
2015
- 2015-09-21 CN CN201510603938.7A patent/CN105161385A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1400620A (en) * | 2001-08-07 | 2003-03-05 | 武汉雷泰电力技术有限公司 | Full-insulating high-voltage drop-off fuse |
| CN102376474A (en) * | 2010-08-23 | 2012-03-14 | 上海电科电器科技有限公司 | High-breaking-capacity arc extinguish chamber of circuit breaker |
| CN203071034U (en) * | 2013-02-05 | 2013-07-17 | 帝凯（厦门）电气有限公司 | Arc extinguishing device for fuse |
| CN204905196U (en) * | 2015-09-21 | 2015-12-23 | 国网辽宁省电力有限公司鞍山供电公司 | Insulating arc extinction cover of drop -out switch |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108666919A (en) * | 2018-06-15 | 2018-10-16 | 国家电网有限公司 | A kind of integration pole type transformer platform complexes |
| CN109888663A (en) * | 2019-03-07 | 2019-06-14 | 国网上海市电力公司 | A kind of fuse can live line work insulating shield |
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|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20151216 |
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| WD01 | Invention patent application deemed withdrawn after publication |