CN201215780Y - Contact tip component for high-voltage isolation switch - Google Patents
Contact tip component for high-voltage isolation switch Download PDFInfo
- Publication number
- CN201215780Y CN201215780Y CNU2008200378689U CN200820037868U CN201215780Y CN 201215780 Y CN201215780 Y CN 201215780Y CN U2008200378689 U CNU2008200378689 U CN U2008200378689U CN 200820037868 U CN200820037868 U CN 200820037868U CN 201215780 Y CN201215780 Y CN 201215780Y
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- CN
- China
- Prior art keywords
- contact
- arcing
- high voltage
- movable
- static
- 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.)
- Expired - Fee Related
Links
- 238000002955 isolation Methods 0.000 title description 2
- 239000000463 material Substances 0.000 claims description 7
- SBYXRAKIOMOBFF-UHFFFAOYSA-N copper tungsten Chemical compound [Cu].[W] SBYXRAKIOMOBFF-UHFFFAOYSA-N 0.000 claims description 6
- 239000012634 fragment Substances 0.000 claims description 5
- 230000003068 static effect Effects 0.000 abstract description 16
- 230000000694 effects Effects 0.000 abstract description 4
- 238000010891 electric arc Methods 0.000 abstract description 3
- 230000007547 defect Effects 0.000 abstract 1
- 230000001052 transient effect Effects 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 2
- 230000000087 stabilizing effect Effects 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 230000000712 assembly Effects 0.000 description 1
- 238000000429 assembly Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 238000012217 deletion Methods 0.000 description 1
- 230000037430 deletion Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000003628 erosive effect Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
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- Arc-Extinguishing Devices That Are Switches (AREA)
Abstract
The utility model discloses a contact component of a high-voltage segregate switch, which comprises a movable contact component and a static contact component, wherein the movable contact component is further divided into a movable main contact and a movable arcing contact, the static contact is further divided into a static main contact and a static arcing contact, one end of the movable arcing contact is connected with the side surface of a conducting tube end socket of the movable main contact through two screws, and the movable arching contact is an elastic arching contact. The elastic arching contact can extinguish arcs rapidly under the effect of spring force when in brake breaking and closing, and thereby the defect that the movable main contact and the static main contact are easily burned out by electric arcs due to big electric arc energy in breaking-closing is solved.
Description
Technical field
The utility model relates to a kind of contact assembly of high voltage isolator.
Background technology
High voltage isolator is to be used in the electric power system deciliter voltage being arranged and the power equipment of zero load circuit utilizes high voltage isolator to form cut-off point between quilt maintenance equipment and charging equipment.Under closure state, can also can bear short-circuit current by normal current reliably again.Sometimes in order to satisfy specific (special) requirements, also load current can be transformed into another bus-bar system from a bus-bar system.
The contact assembly that high voltage isolator uses comprises moving contact and fixed contact, contact generally is a copper material, when the on-load electric current carries out separating brake or closes a floodgate, separating or contacting in a flash, must cause arcing, and cause dynamic and static contact molten together easily, make that isolating switch can not normal running.Many high voltage isolators are long owing to conducting rod, and promptly the arm of force is long, sees Fig. 1, if because arcing causes dynamic and static contact molten together, might make dynamic and static contact can not continue action and make and the entire equipment inefficacy will bring serious consequence to circuit.
Accidents caused by avoiding high voltage isolator in the divide-shut brake process, to be produced transient overvoltage, occurred in the prior art its contact is carried out improved method, as Chinese patent application " contact apparatus that suppresses transient state overvoltage of high-voltage isolating switch " (application number: disclose a kind of high voltage isolation switch contact 200710018583.0), a resistance contact head is being set above the fixed contact and between the moving contact fracture, resistance contact head and quiet side stand lower end resistor always in parallel, utilize resistance contact head that puncture voltage is introduced resistance loop, resistor plays the effect of stabilizing transient overvoltage during divide-shut brake, but this structure of contact terminal complexity, production cost is higher, also appear at initiatively contact in addition on the market, fixed contact part increases arcing contact respectively, plays the effect of stabilizing transient overvoltage with arcing contact when the divide-shut brake.
The utility model content
The purpose of this utility model is the contact of a kind of high voltage isolator of design, can not produce arcing and make the dynamic and static contact of isolating switch molten together when switch carries out the branch closing operation, guarantees the normal operation of isolated switchgear.
For achieving the above object, the utility model provides a kind of contact assembly of high voltage isolator, comprise moving contact component, fixed contact assembly, moving contact component is divided into moving main contact and moving arcing contact again, the fixed contact assembly is divided into quiet main contact, the quiet arc contact, an end of described moving arcing contact is connected with side, moving main contact contact tube termination by two screws, and it is characterized in that: described moving arcing contact is the elastic arc contact.
When isolated switch main plug-in strip separating brake; moving main contact separately separates behind the moving arcing contact earlier; and moving arcing contact closes earlier and closes behind the moving main contact when closing a floodgate; divide, fashionable arcing point is all on arcing contact; thereby protect dynamic and static main contact to avoid electric arc burn; the material at the arcing position of arcing contact adopts copper-tungsten in addition, can not melt together owing to arcing makes it, thus the normal operation of assurance isolated switchgear.
The moving arcing contact structure is designed to elastic construction, minute, arc extinguishing rapidly under the effect of arcing contact at elastic force when closing a floodgate, thereby solved because divide, the arc energy during combined floodgate causes dynamic and static main contact easily by the defective of electrical arc erosion greatly.
Description of drawings
Fig. 1 is a kind of embodiment high voltage isolator of the utility model "on" position overall schematic;
Fig. 2 be the dynamic and static contact of a kind of embodiment of the utility model minute, schematic diagram during "on" position;
Fig. 3 is the static contact structure schematic diagram of A direction for Fig. 2;
Fig. 4 is a high voltage isolator separating brake moment moving arcing contact view;
Fig. 5 is high voltage isolator combined floodgate moment moving arcing contact view.
Embodiment
Fig. 1 is a kind of embodiment high voltage isolator of the utility model "on" position overall schematic, high voltage isolator comprises 1,2, two fixed contact assemblies 3,4 of two moving contact components, and two ends symmetry, one end of moving arcing contact 5 is connected with the side, contact tube termination of moving main contact 6 by two screws, and the material at the arcing position of moving arcing contact 5 adopts copper-tungsten.
Fig. 2 be the dynamic and static contact of a kind of embodiment of the utility model minute, schematic diagram during "on" position, Fig. 4 is a high voltage isolator separating brake moment arcing contact view; Fig. 5 is high voltage isolator combined floodgate moment arcing contact view.Because moving arcing contact 5 has elasticity; when high voltage isolator main switch cutter separating brake; moving main contact 6 separately separates behind the moving arcing contact 5 earlier; and moving arcing contact 5 closes earlier and closes behind the main contact 6 when closing a floodgate; divide, fashionable arcing point all on moving arcing contact 5, thereby protect dynamic and static main contact to avoid electric arc burn, and the material at the arcing position of arcing contact employing copper-tungsten; can not melt together owing to arcing makes it, thus the normal operation of assurance isolated switchgear.Moving arcing contact 5 can be " Ω " type shell fragment, this design not only makes it have more elasticity and certain retractility, and can be hidden between the fingertip of moving main contact 6, be subjected to the shielding of fingertip, make the isolating switch product can additionally not increase RI level owing to having increased arcing contact.
In addition, both running statuses are designed to vertical bar shape, U-shaped shape, S shape etc. with moving arcing contact in the time of can be according to the shape of different its different dynamic and static main contacts of isolating switch product and branch, combined floodgate.
Described quiet arc contact 7 is stiff, is fixed in the termination of fixed contact, and its material can adopt copper-tungsten.
But the utility model scope required for protection is not limited to the embodiment that mentioned, also comprise can be by another kind of element available other of mode such as interpolation, change, deletion be included in other embodiment in the utility model thought range.
Claims (7)
1. the contact assembly of a high voltage isolator, comprise moving contact component, fixed contact assembly, moving contact component is divided into moving main contact (6) and moving arcing contact (5) again, the fixed contact assembly is divided into quiet main contact, quiet arc contact (7), one end of described moving arcing contact is connected with side, moving main contact contact tube termination by two screws, and it is characterized in that: described moving arcing contact is the elastic arc contact.
2. the contact assembly of high voltage isolator according to claim 1 is characterized in that: the material employing copper-tungsten at the arcing position of described moving arcing contact.
3. the contact assembly of high voltage isolator according to claim 1 and 2, it is characterized in that: described moving arcing contact (5) is " Ω " type a shell fragment.
4. the contact assembly of high voltage isolator according to claim 1 and 2, it is characterized in that: described moving arcing contact (5) is a vertical bar type shell fragment.
5. the contact assembly of high voltage isolator according to claim 1 and 2, it is characterized in that: described moving arcing contact (5) is " U " type a shell fragment.
6. the contact assembly of high voltage isolator according to claim 1 and 2, it is characterized in that: described moving arcing contact (5) is " S " type a shell fragment.
7. the contact assembly of high voltage isolator according to claim 1 and 2 is characterized in that: described quiet arc contact (7) is fixed in the termination of fixed contact for stiff, and its material is a copper-tungsten.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200378689U CN201215780Y (en) | 2008-06-23 | 2008-06-23 | Contact tip component for high-voltage isolation switch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200378689U CN201215780Y (en) | 2008-06-23 | 2008-06-23 | Contact tip component for high-voltage isolation switch |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201215780Y true CN201215780Y (en) | 2009-04-01 |
Family
ID=40520984
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008200378689U Expired - Fee Related CN201215780Y (en) | 2008-06-23 | 2008-06-23 | Contact tip component for high-voltage isolation switch |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201215780Y (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103280368A (en) * | 2013-06-13 | 2013-09-04 | 北京合纵科沃尔电力科技有限公司 | Magnetic quenching SF6 three-position load switch |
| CN103545157A (en) * | 2013-10-08 | 2014-01-29 | 袁昌辉 | Fuse can be tensioned twice, double breaking high voltage switch |
| CN107070436A (en) * | 2017-04-25 | 2017-08-18 | 中国工程物理研究院流体物理研究所 | A kind of LTD tandem arrangements |
| CN109003858A (en) * | 2018-09-29 | 2018-12-14 | 湖南长高高压开关有限公司 | High voltage isolator Rapid arc breaking device and its method of operating in on/off switch |
| CN109411263A (en) * | 2018-11-01 | 2019-03-01 | 上海思源高压开关有限公司 | Static contact, rotating knife chip disconnecting switch and high-voltage combined electrical apparatus |
-
2008
- 2008-06-23 CN CNU2008200378689U patent/CN201215780Y/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103280368A (en) * | 2013-06-13 | 2013-09-04 | 北京合纵科沃尔电力科技有限公司 | Magnetic quenching SF6 three-position load switch |
| CN103280368B (en) * | 2013-06-13 | 2015-10-28 | 北京合纵科沃尔电力科技有限公司 | The SF6 three-stations load switch of magnetic quenching |
| CN103545157A (en) * | 2013-10-08 | 2014-01-29 | 袁昌辉 | Fuse can be tensioned twice, double breaking high voltage switch |
| CN107070436A (en) * | 2017-04-25 | 2017-08-18 | 中国工程物理研究院流体物理研究所 | A kind of LTD tandem arrangements |
| CN109003858A (en) * | 2018-09-29 | 2018-12-14 | 湖南长高高压开关有限公司 | High voltage isolator Rapid arc breaking device and its method of operating in on/off switch |
| CN109003858B (en) * | 2018-09-29 | 2023-11-07 | 湖南长高高压开关有限公司 | Quick arc breaking device of high-voltage isolating switch and action method of quick arc breaking device during switching-on and switching-off |
| CN109411263A (en) * | 2018-11-01 | 2019-03-01 | 上海思源高压开关有限公司 | Static contact, rotating knife chip disconnecting switch and high-voltage combined electrical apparatus |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20090401 Termination date: 20130623 |