CN203552958U - Large-current isolation switch structure - Google Patents
Large-current isolation switch structure Download PDFInfo
- Publication number
- CN203552958U CN203552958U CN201320714309.8U CN201320714309U CN203552958U CN 203552958 U CN203552958 U CN 203552958U CN 201320714309 U CN201320714309 U CN 201320714309U CN 203552958 U CN203552958 U CN 203552958U
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- Prior art keywords
- conductor
- fixed contact
- contact
- watchband
- shield cover
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- 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 - Lifetime
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- 238000002955 isolation Methods 0.000 title abstract description 4
- 239000004020 conductor Substances 0.000 claims abstract description 34
- 238000010276 construction Methods 0.000 claims description 4
- 230000003068 static effect Effects 0.000 abstract 5
- 239000000463 material Substances 0.000 description 4
- 238000009413 insulation Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000033001 locomotion Effects 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 230000005855 radiation Effects 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- 238000012795 verification Methods 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 239000004411 aluminium Substances 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000017525 heat dissipation Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
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Abstract
The utility model discloses a large-current isolation switch structure. The structure comprises a static contact which is provided with an opening at one end and a moving contact which can be plugged into the opening of the static contact. The structure is characterized by further comprising a first conductor, a second conductor, a first shield cover, a second shield cover, a static contact side contact finger and a watchband contact finger, wherein the first shield cover is arranged on the static contact; the first shield cover is fixedly connected with the first conductor; the first conductor is provided with the static contact side contact finger; the moving contact is of a hollow structure; the watchband contact finger and the second shield cover are successively arranged on the portion, which is disposed outside the opening, of the moving contact in a sleeved manner along a radial direction; the moving contact is connected with the second shield cover through the watchband contact finger; the second shield cover is fixedly connected with the second conductor; and the second conductor is internally provided with a connecting lever which can be separated and closed. The large-current isolation switch structure not only realizes the targets of nonincreased housing diameter and reduced temperature rise, but also realizes the purpose of miniaturization.
Description
Technical field
The utility model belongs to high voltage switchgear applied technical field, relates in particular to a kind of heavy current disconnecting switches structure.
Background technology
GIS (Gas Insulated metal-enclosed Switchgear, the gas isolated metal enclosed switchgear of SF6) because of plurality of advantages such as its compact conformation, floor space are little, environment tolerance is strong, handling safety, good looking appearances, in transformer station, be widely used in recent years.GIS is as the nucleus equipment of super-huge transformer station; it is mainly organically combined by parts such as circuit breaker, isolating switch, earthed switch, instrument transformer, lightning arrester, cable termination, bus, sleeve pipes; outside is protected by metal shell, fills the insulating gas with SF6 in housing.Current, social development is rapid, impels the high voltage technique progress of constantly bringing forth new ideas, thereby GIS is proposed to higher requirement.GIS product develops to large capacity, miniaturization in each electric pressure.More and more grid company propose requirements at the higher level to GIS, break through traditional GIS rated current 3150A or 4000A, extend to more high-grade large electric current 6300A.
Isolating switch is the critical piece during GIS forms, its effect: when operation, carry loop rated current and carry in short-term circuit fault current; When overhaul of line breaker, provide safe and reliable isolation fracture; While changing main bus bar in power station, work to switch main bus bar.Therefore isolating switch will have: through-flow (rated current) ability when long, jam-tolerant current capacity, the medium and small current capacity of opening-closing bus, opening-closing bus switching current (circulation) ability in short-term, and the insulating capacity under high voltage.And the design of heavy current disconnecting switches of the prior art, consider heat radiation, insulation and Cost Problems: heat dissipation problem mainly relies on increase surface of shell to amass to realize heat radiation, if it is long-pending to increase surface of shell, diameter of the housing is corresponding increase, gas use amount also increases thereupon, and equipment cannot be accomplished miniaturization; Consider Insulation Problems, contact diameter increases, and causes equally diameter of the housing to increase, and causes equally equipment cannot accomplish miniaturization; If adopt the higher material of conductance, diameter is without increase, but material cost is higher, unidimensional contact, and the price of copper material is 3 times of aluminium price.
Utility model content
The utility model, in order to solve weak point of the prior art, provides a kind of heavy current disconnecting switches structure, can reduce temperature rise, realizes miniaturization.
For solving the problems of the technologies described above, the utility model adopts following technical scheme: a kind of heavy current disconnecting switches structure, comprise the uncovered fixed contact in one end and can be plugged into the uncovered interior moving contact of fixed contact, it also comprises the first conductor, the second conductor, the first radome, secondary shielding cover, fixed contact side fingertip, watchband-shaped contactor, the first radome is arranged on fixed contact, the first radome is fixedly connected with the first conductor, the first conductor is provided with fixed contact side fingertip, moving contact is hollow-core construction, be positioned at the uncovered outer part of moving contact and be radially equipped with successively watchband-shaped contactor and secondary shielding cover, moving contact is connected with secondary shielding cover by watchband-shaped contactor, secondary shielding cover is fixedly connected with the second conductor, in the second conductor, be provided with and can divide, the connection connecting lever closing.
Described fixed contact side fingertip is set to many, between adjacent fixed contact side fingertip, has gap.
Described fixed contact side fingertip is two, the both sides that are arranged on the first conductor of two fixed contact side fingertip symmetries.
Described the first radome and the first conductor are bolted to connection, and secondary shielding cover and the second conductor are bolted to connection.
Remarkable result of the present utility model is: in the utility model, moving contact adopts hollow-core construction, under the prerequisite of kelvin effect of considering electric current, has reduced the use amount of material; Fixed contact side fingertip is set to many, and moving contact adopts contact-making surface large, and the watchband-shaped contactor that contact resistance is low, can effectively reduce the contact resistance in loop like this, meets temperature rise required value, not changing under diameter of the housing prerequisite, meets insulating requirements.The utility model had both been realized does not increase diameter of the housing, reduces the target of temperature rise, has realized the object of miniaturization yet.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model;
Fig. 2 is the structural representation of the utility model operating state.
Embodiment
As shown in Figure 1, the utility model comprise one end offer uncovered 10 fixed contact 1 and can be plugged into fixed contact 1 uncovered 10 in moving contact 3, it also comprises the first conductor 6, the second conductor 7, the first radome 11, secondary shielding cover 5, fixed contact side fingertip 2, watchband-shaped contactor 4, the first radome 11 is arranged on fixed contact 1, the first radome 11 and the first conductor 6 are bolted, the first conductor 6 monosymmetric is provided with a pair of fixed contact side fingertip 2, between adjacent fixed contact side fingertip 2, there is gap, moving contact 3 is hollow-core construction, the part that moving contact 3 is positioned at outside uncovered 10 is radially equipped with watchband-shaped contactor 4 and secondary shielding cover 5 successively, moving contact 3 is connected with secondary shielding cover 5 by watchband-shaped contactor 4, secondary shielding cover 5 and the second conductor 7 are bolted, in the second conductor 7, be provided with and can divide, the connection connecting lever 8 closing.
As shown in Figure 2, during the utility model work, be arranged in housing 9, in fixed contact 1 one sides, conductor 6 is by fixed contact side fingertip 2 and moving contact 3 conductings, at moving contact 3 opposite sides, moving contact 3 passes through watchband-shaped contactor 4 and the second conductor 7 conductings, and realizes minute resultant motions with connecting connecting lever 8.Electric current, successively by the first conductor 6, fixed contact side fingertip 2, moving contact 3, watchband-shaped contactor 4, the second conductor 7, flows in major loop.Isolating switch is realized a minute resultant motion by connecting connecting lever 8.
Through verification experimental verification, adopt the isolating switch of the utility model structure, passed through the temperature rise test of 1.1 * 6300A, and the checking of standard Insulation Test.
Above embodiment is the technical scheme of unrestricted the present embodiment in order to explanation only, although the utility model is had been described in detail with reference to above-described embodiment, those of ordinary skill in the art is to be understood that: still can modify or be equal to replacement the utility model, and not departing from any modification or partial replacement of spirit and scope of the present utility model, it all should be encompassed in the middle of claim scope of the present utility model.
Claims (4)
1. a heavy current disconnecting switches structure, comprise the uncovered fixed contact in one end and can be plugged into the uncovered interior moving contact of fixed contact, it is characterized in that: it also comprises the first conductor, the second conductor, the first radome, secondary shielding cover, fixed contact side fingertip, watchband-shaped contactor, the first radome is arranged on fixed contact, the first radome is fixedly connected with the first conductor, the first conductor is provided with fixed contact side fingertip, moving contact is hollow-core construction, be positioned at the uncovered outer part of moving contact and be radially equipped with successively watchband-shaped contactor and secondary shielding cover, moving contact is connected with secondary shielding cover by watchband-shaped contactor, secondary shielding cover is fixedly connected with the second conductor, in the second conductor, be provided with and can divide, the connection connecting lever closing.
2. heavy current disconnecting switches structure according to claim 1, is characterized in that: described fixed contact side fingertip is set to many, between adjacent fixed contact side fingertip, has gap.
3. heavy current disconnecting switches structure according to claim 2, is characterized in that: described fixed contact side fingertip is two the both sides that are arranged on the first conductor of two fixed contact side fingertip symmetries.
4. heavy current disconnecting switches structure according to claim 1, is characterized in that: described the first radome and the first conductor are bolted to connection, and secondary shielding cover and the second conductor are bolted to connection.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320714309.8U CN203552958U (en) | 2013-11-14 | 2013-11-14 | Large-current isolation switch structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320714309.8U CN203552958U (en) | 2013-11-14 | 2013-11-14 | Large-current isolation switch structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203552958U true CN203552958U (en) | 2014-04-16 |
Family
ID=50471039
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320714309.8U Expired - Lifetime CN203552958U (en) | 2013-11-14 | 2013-11-14 | Large-current isolation switch structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203552958U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106710901A (en) * | 2017-02-08 | 2017-05-24 | 河南平高电气股份有限公司 | Contact base, contact base assembly and isolation ground-connection combination switch |
| CN111799123A (en) * | 2019-04-08 | 2020-10-20 | 河南平芝高压开关有限公司 | Static contact component and isolating switch using same |
| CN111799122A (en) * | 2019-04-08 | 2020-10-20 | 河南平芝高压开关有限公司 | Isolating switch and static contact component thereof |
| CN112349521A (en) * | 2019-08-09 | 2021-02-09 | 河南平芝高压开关有限公司 | Circuit breaker and resistor fracture contact thereof |
-
2013
- 2013-11-14 CN CN201320714309.8U patent/CN203552958U/en not_active Expired - Lifetime
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106710901A (en) * | 2017-02-08 | 2017-05-24 | 河南平高电气股份有限公司 | Contact base, contact base assembly and isolation ground-connection combination switch |
| CN111799123A (en) * | 2019-04-08 | 2020-10-20 | 河南平芝高压开关有限公司 | Static contact component and isolating switch using same |
| CN111799122A (en) * | 2019-04-08 | 2020-10-20 | 河南平芝高压开关有限公司 | Isolating switch and static contact component thereof |
| CN111799123B (en) * | 2019-04-08 | 2023-01-03 | 河南平芝高压开关有限公司 | Static contact component and isolating switch using same |
| CN112349521A (en) * | 2019-08-09 | 2021-02-09 | 河南平芝高压开关有限公司 | Circuit breaker and resistor fracture contact thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee |
Owner name: HENAN PINGZHI HIGH VOLTAGE SWITCHGEAR CO., LTD. Free format text: FORMER NAME: HENAN PINGGAO TOSHIBA HIGH VOLTAGE SWITCHGEAR CO., LTD. |
|
| CP01 | Change in the name or title of a patent holder |
Address after: 467013 No. 645, east section, Jianshe Road, Henan, Pingdingshan Patentee after: HENAN PINGZHI HIGH VOLTAGE SWITCHGEAR Co.,Ltd. Address before: 467013 No. 645, east section, Jianshe Road, Henan, Pingdingshan Patentee before: HENAN PINGGAO TOSHIBA HIGH VOLTAGE SWITCHGEAR Co.,Ltd. |
|
| CX01 | Expiry of patent term |
Granted publication date: 20140416 |
|
| CX01 | Expiry of patent term |