CN201084626Y - An ultra-high pressure GIS-purpose isolation switch - Google Patents
An ultra-high pressure GIS-purpose isolation switch Download PDFInfo
- Publication number
- CN201084626Y CN201084626Y CNU2007200326815U CN200720032681U CN201084626Y CN 201084626 Y CN201084626 Y CN 201084626Y CN U2007200326815 U CNU2007200326815 U CN U2007200326815U CN 200720032681 U CN200720032681 U CN 200720032681U CN 201084626 Y CN201084626 Y CN 201084626Y
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- strutting piece
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Abstract
The utility model relates to a 800/1100 kV GIS isolating switch, for solving the problem of damaging ultra-high voltage GIS switch equipment by overvoltage, providing a GIS isolating switch not only meeting the requirements of ultra-high voltage but restraining the overvoltage in the opening and closing switches. The utility model comprises a housing; wherein, a movable lateral part and a static lateral part are positioned in the housing; the two parts are electrically connected with the outside by a insulated basin; the movable lateral part is positioned in the inner upper part of the housing separately; the static lateral part is positioned on the inner lower part of the housing separately; the movable lateral part and the static lateral part form the vertical structure respectively; one insulated basin is positioned on the sidewall of the upper part of the housing; one or two insulated basins are positioned on the sidewall of the lower part of the housing; an opening and closing switch is positioned on the static lateral part in order to restrain overvoltage.
Description
Technical field
The utility model relates to a kind of ultra high voltage Cubicle Gas-Insulated Switchgear (GIS) that is used for 800～1100kV electric pressure and uses isolating switch.
Background technology
Isolating switch is one of critical component of GIS equipment, has maintenance and isolates with segmentation; Switch bus; Divide, close functions such as idler circuit.It is high that extra-high voltage GIS exists insulation property to require with isolating switch and earthed switch, and high pressure closes the fashionable overvoltage that is more prone to produce, and causes be difficult to guarantee the mechanical endurance of isolating switch thus.The inhibition overvoltage is the technological difficulties during present extra-high voltage GIS is made with isolating switch, and existing isolating switch does not still have the superpotential technological means of effective inhibition.
Summary of the invention
The utility model is in order to solve the harm that overvoltage is caused the extra-high voltage GIS switchgear, provide a kind of and can satisfy that ultra high voltage requires, possessed the isolating switch stipulated in the electric power system and earthed switch function, dependable performance, and can effectively suppress the extra-high voltage GIS isolating switch of divide-shut brake transient overvoltage.
For reaching above purpose, the utility model takes following technical scheme to be achieved:
A kind of extra-high voltage GIS isolating switch comprises housing, places moving side part and quiet side part in the housing, and these two parts all are electrically connected by insulating basin and outside the realization, it is characterized in that the described moving sidepiece housing internal upper part that is placed in; The quiet sidepiece bottom in the housing that is placed in, dynamic and static side partly constitutes vertical structure and arranges that described insulating basin is provided with one in the housing upper portion side wall; Be provided with one to two at the lower housing portion sidewall, described quiet side partly is provided with the superpotential device of transient suppression.
In the such scheme, described moving side partly comprises moving side strutting piece and wherein moving main contact and moving side fingertip; Quiet side partly comprise quiet side strutting piece and axially on quiet main contact, described quiet side strutting piece is supported by an insulation brace table, quiet side strutting piece radially is provided with quiet side conductor bonding conductor contact; The connected mode of quiet side conductor and conductor contact is a plug-in connection.
The superpotential device of described transient suppression comprises radome and following radome, last radome is provided with resistance contact head, this resistance contact head is between the axis of dynamic and static main contact, and be electrically connected with at least one resistor that is arranged between the upper and lower radome, described radome down is arranged at the junction of insulation brace table and quiet side strutting piece.
Described moving side strutting piece below is provided with air cylinder and connects moving main contact and moving side fingertip.
Described housing sidewall can be provided with earthed switch, and the ground connection fixed contact of this earthed switch is arranged on the moving side strutting piece, and with respect to the moving contact of this earthed switch.
Advantage of the present utility model is, has adopted the double-deck structure of contact terminal of quiet side first, and promptly quiet side contact is divided into two-layer, and the upper strata is the resistance contact head that is located on the radome, is connected with the main body loop by resistor, and lower floor is the quiet main contact that is arranged on the quiet side strutting piece.By upper resistors contact and resistor solved the operation in may produce the problem of disruptive discharge over the ground.Wherein resistance contact head adopts contact conducting principle, has alleviated the ablation of electric arc to contact greatly, has improved product reliability and life-span.Rational housing and radome design has guaranteed the integral insulation performance of isolating switch, earthed switch.Adopted buffering air cylinder structure, having reduced closes a floodgate impacts, and has improved part life, and auxiliary blow-out effect is arranged when separating brake simultaneously.
Switch integral body is vertical layout, forms independently sealed gas chamber by insulating basin, and is separated by with miscellaneous equipment, can carry out independence assembling and transportation, is fit to the various layout forms of GIS equipment.Two kinds of electric connecting modes of the present utility model are except that housing, and all the other most of parts can be general, reduced the parts difficulty of processing, saved manufacturing cost.
Description of drawings
Fig. 1 is a kind of structure chart of the present utility model.Among the figure: 1, insulating basin; 2, moving side conductor radome; 3, moving side conductor; 4, guide and shielding; 5, bindiny mechanism; 6, connecting rod; 7, upper cover plate; 8, radome on the moving side; 9, housing; 10, moving side strutting piece; 11, moving main contact; 12, earthed switch fixed contact; 13, earthed switch; 14, resistance contact head; 15, radome on the quiet side; 16, quiet main contact; 17, quiet side strutting piece; 18, quiet side conductor; 19, conductor contact; 20, conductor contact radome; 21, lower cover; 22, insulation brace table; 23, radome under the quiet side; 24, resistor; 25, moving side fingertip; 26, radome under the moving side; 27, air cylinder.
Fig. 2 is the another kind of structure chart of the utility model isolating switch.
Embodiment
Below in conjunction with accompanying drawing and instantiation the utility model is described in further detail.
Detailed structure of the present utility model and element comprise two kinds of execution modes that are used for the different modes of connection, and these two kinds of execution mode structural principles and main parts size are identical.
Embodiment 1
As shown in Figure 1, a kind of isolating switch of the present utility model, its main body is enclosed in and is filled with SF for being electrically connected by insulating basin 1 and outside
6In the housing 9 of insulating gas, be communicated with or disjunction by quiet side main contact 16 and the moving 11 pairs of high voltage circuits of main contact of moving side, and one be installed in housing 9 sidewalls, can make the earthed switch 13 of electric equipment major loop by being connected the earthed switch fixed contact 12 on the moving side strutting piece 10 by the earth connection reliable ground.Earthed switch 13 can dispose inspection earthing switch and high speed grounding switch as required.
Isolating switch is vertical layout, because contact function difference can be divided into isolating switch inside moving side and quiet side two parts, the utility model will move side in isolating switch top, and quiet side is in the isolating switch bottom.Two parts all are electrically connected by insulating basin 1 and outside the realization, the moving side of isolating switch is a main frame with moving side strutting piece 10, moving side conductor 3 will move side strutting piece 10 and be connected with insulating basin 1, it not only plays the effect of conduction, also will bear the weight and the switching impulse of moving side element simultaneously with insulating basin 1.Guide and shield 4, bindiny mechanism 5, connecting rod 6 connect the transmission device of moving side to the operating mechanism that is installed in housing 9 outsides (not drawing among the figure), but make the moving main contact 11 of isolating switch operating mechanism actuating carry out rapid movement up and down, realize the opening and closing movement of isolating switch, its folding direction is consistent with the axle center of housing 9.
Moving side fingertip 25 keeps closely contacting with moving main contact 11 when moving main contact 11 moves all the time, has formed the conductive path of moving side simultaneously with air cylinder 27, moving side strutting piece 10, moving side conductor 3.
The quiet side of isolating switch is arranged on lower cover 21 tops by insulation brace table 22, quiet main contact 16 supports by insulation brace table 22, quiet main contact 16, quiet side strutting piece 17, quiet side conductor 18 and conductor contact 19 have constituted the primary path of operating current, and are electrically connected with other parts by the insulating basin 1 of housing 9 bottoms.On the quiet side under radome 15 and the quiet side radome 23 be connected with resistor 24, may produce superpotential divide-shut brake device by being installed in when the resistance contact head on the radome 15 14 has constituted inhibition isolating switch separating brake on the quiet side.Quiet side conductor 18 and and the connected mode of conductor contact 19 be plug in construction, connect reliable and install simple.。
As shown in Figure 2, another kind of isolating switch of the present utility model is with the difference of embodiment 1: its quiet side is in same horizontal plane by two and opposing insulating basin 1 is electrically connected with outside the realization; Its moving side is on the vertical plane of this horizontal plane (do not draw among the figure, can see from the rear side of Fig. 2) with the outside insulating basin that is electrically connected of realizing.
Operation principle of the present utility model is: isolating switch is realized the conducting of circuit by the action of moving main contact 11 and is cut-off.The utility model isolating switch electric current when closing position is transmitted by moving side conductor 3, moving side strutting piece 10, air cylinder 27, moving side fingertip 25, moving main contact 11, quiet main contact 16, quiet side strutting piece 17, quiet side conductor 18, conductor contact 19, and housing 9 and the earth are kept good insulation performance; When the separating brake position, between moving side of isolating switch and quiet side, there is tangible fracture, keep good insulation performance between fracture.During combined floodgate, moving main contact 11 moves downward, and cushioning effect is played in the motion of 27 pairs of moving main contacts 11 of air cylinder, and moving main contact 11 kept well contacting with quiet main contact 16 after combined floodgate put in place.During separating brake, moving main contact 11 at first separates with quiet main contact 16, owing to produced subsidiary loop by resistance contact head 14 and resistor 24, suppressed the generation of transient overvoltage, and air cylinder 27 has promoted SF
6Gas flow has strengthened the ability of extinguish arcs, has guaranteed the reliable separating brake of isolating switch.Earthed switch 13 conducting when major loop needs ground connection disconnects with major loop in normal operation.
Claims (7)
1. extra-high voltage GIS isolating switch comprises housing, places moving side part and quiet side part in the housing, and these two parts all are electrically connected by insulating basin and outside the realization, it is characterized in that the described moving sidepiece housing internal upper part that is placed in; The quiet sidepiece bottom in the housing that is placed in, dynamic and static side partly constitutes vertical structure and arranges that described insulating basin is provided with one in the housing upper portion side wall; Be provided with one to two at the lower housing portion sidewall, described quiet side partly is provided with the superpotential device of transient suppression.
2. extra-high voltage GIS isolating switch according to claim 1 is characterized in that, described moving side partly comprises moving side strutting piece and wherein moving main contact and moving side fingertip; Quiet side partly comprise quiet side strutting piece and axially on quiet main contact, described quiet side strutting piece is supported by an insulation brace table, quiet side strutting piece radially is provided with quiet side conductor bonding conductor contact.
3. extra-high voltage GIS isolating switch according to claim 2, it is characterized in that, described transient suppression overvolatge device comprises radome and following radome, last radome is provided with resistance contact head, this resistance contact head is between the axis of dynamic and static main contact, and be electrically connected with at least one resistor that is arranged between the upper and lower radome, described radome down is arranged at the junction of insulation brace table and quiet side strutting piece.
4. extra-high voltage GIS isolating switch according to claim 2 is characterized in that, the connected mode of described quiet side conductor and conductor contact is a plug-in connection.
5. according to claim 2 or 3 described extra-high voltage GIS isolating switches, it is characterized in that described moving side strutting piece below is provided with air cylinder and connects moving main contact and moving side fingertip.
6. according to the arbitrary described extra-high voltage GIS isolating switch of claim 1 to 4, it is characterized in that described housing sidewall is provided with earthed switch, the ground connection fixed contact of this earthed switch is arranged on the moving side strutting piece and with respect to the moving contact of this earthed switch.
7. extra-high voltage GIS isolating switch according to claim 5 is characterized in that described housing sidewall is provided with earthed switch, and the ground connection fixed contact of this earthed switch is arranged on the moving side strutting piece, and with respect to the moving contact of this earthed switch.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200326815U CN201084626Y (en) | 2007-09-07 | 2007-09-07 | An ultra-high pressure GIS-purpose isolation switch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200326815U CN201084626Y (en) | 2007-09-07 | 2007-09-07 | An ultra-high pressure GIS-purpose isolation switch |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201084626Y true CN201084626Y (en) | 2008-07-09 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007200326815U Expired - Lifetime CN201084626Y (en) | 2007-09-07 | 2007-09-07 | An ultra-high pressure GIS-purpose isolation switch |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201084626Y (en) |
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101527431B (en) * | 2009-04-13 | 2010-12-29 | 中国西电电气股份有限公司 | Supervoltage/extra-high voltage GIS isolating device |
| CN102339669A (en) * | 2010-07-23 | 2012-02-01 | 江苏思源赫兹互感器有限公司 | Gas insulated switchgear (GIS) combined type voltage transformer |
| CN103681077A (en) * | 2013-12-13 | 2014-03-26 | 西安天顺成套电器厂 | Multi-section pneumatic disconnecting switch |
| CN104658811A (en) * | 2015-03-19 | 2015-05-27 | 麦克奥迪（厦门）电气股份有限公司 | Pole component of solid sealed terminal |
| CN107068457A (en) * | 2017-05-12 | 2017-08-18 | 平高集团有限公司 | It is a kind of to carry the switch that VFTO suppresses function |
| CN108010788A (en) * | 2016-10-28 | 2018-05-08 | 上海思源高压开关有限公司 | A kind of disconnecting switch for gas insulation metal seal combined electrical apparatus |
| CN109116220A (en) * | 2017-06-22 | 2019-01-01 | 河南平芝高压开关有限公司 | Withstand test device used for high-voltage switch |
| CN109148204A (en) * | 2017-06-27 | 2019-01-04 | 河南平芝高压开关有限公司 | A kind of gas-insulating and fully-enclosed combined electrical apparatus and its three-station isolating grounding switch |
| CN109314010A (en) * | 2016-06-03 | 2019-02-05 | Abb瑞士股份有限公司 | Switching device with double conductive shells |
| CN111433876A (en) * | 2017-12-04 | 2020-07-17 | 西门子股份公司 | Device and method for switching high voltage with a switching mechanism and exactly one resistor stack |
| CN116092758A (en) * | 2022-11-25 | 2023-05-09 | 平高集团有限公司 | External opening and closing resistor structure and isolating switch using same |
-
2007
- 2007-09-07 CN CNU2007200326815U patent/CN201084626Y/en not_active Expired - Lifetime
Cited By (17)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101527431B (en) * | 2009-04-13 | 2010-12-29 | 中国西电电气股份有限公司 | Supervoltage/extra-high voltage GIS isolating device |
| CN102339669A (en) * | 2010-07-23 | 2012-02-01 | 江苏思源赫兹互感器有限公司 | Gas insulated switchgear (GIS) combined type voltage transformer |
| CN102339669B (en) * | 2010-07-23 | 2013-07-03 | 江苏思源赫兹互感器有限公司 | Gas insulated switchgear (GIS) combined type voltage transformer |
| CN103681077A (en) * | 2013-12-13 | 2014-03-26 | 西安天顺成套电器厂 | Multi-section pneumatic disconnecting switch |
| CN104658811A (en) * | 2015-03-19 | 2015-05-27 | 麦克奥迪（厦门）电气股份有限公司 | Pole component of solid sealed terminal |
| CN109314010A (en) * | 2016-06-03 | 2019-02-05 | Abb瑞士股份有限公司 | Switching device with double conductive shells |
| CN108010788A (en) * | 2016-10-28 | 2018-05-08 | 上海思源高压开关有限公司 | A kind of disconnecting switch for gas insulation metal seal combined electrical apparatus |
| CN107068457A (en) * | 2017-05-12 | 2017-08-18 | 平高集团有限公司 | It is a kind of to carry the switch that VFTO suppresses function |
| CN107068457B (en) * | 2017-05-12 | 2019-08-13 | 平高集团有限公司 | A kind of included VFTO inhibits the switch of function |
| CN109116220B (en) * | 2017-06-22 | 2021-07-13 | 河南平芝高压开关有限公司 | Withstand voltage test device for high-voltage switch |
| CN109116220A (en) * | 2017-06-22 | 2019-01-01 | 河南平芝高压开关有限公司 | Withstand test device used for high-voltage switch |
| CN109148204A (en) * | 2017-06-27 | 2019-01-04 | 河南平芝高压开关有限公司 | A kind of gas-insulating and fully-enclosed combined electrical apparatus and its three-station isolating grounding switch |
| CN109148204B (en) * | 2017-06-27 | 2022-06-21 | 河南平芝高压开关有限公司 | Gas insulated totally-enclosed combined electrical apparatus and three-station isolation grounding switch thereof |
| CN111433876A (en) * | 2017-12-04 | 2020-07-17 | 西门子股份公司 | Device and method for switching high voltage with a switching mechanism and exactly one resistor stack |
| US11232920B2 (en) | 2017-12-04 | 2022-01-25 | Siemens Aktiengesellschaft | Arrangement and method for switching high voltages having a switching device and precisely one resistor stack |
| CN111433876B (en) * | 2017-12-04 | 2023-08-25 | 西门子能源全球有限公司 | Device and method for switching high voltages with a switching mechanism and exactly one resistor stack |
| CN116092758A (en) * | 2022-11-25 | 2023-05-09 | 平高集团有限公司 | External opening and closing resistor structure and isolating switch using same |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: WEST CHINA ELECTRIC POWER CO. Free format text: FORMER OWNER: XI'AN ELECTRIC MANUFACTURING CORP. Effective date: 20080905 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20080905 Address after: Shaanxi province Xi'an City West High Tang Hing Road No. 7, zip code: 710075 Patentee after: China XD Electronic Corporation Address before: Shaanxi province Xi'an Fengdeng road 29, zip code: 710077 Patentee before: Xi'an Electric Manufacturing Corp. |
|
| CX01 | Expiry of patent term |
Granted publication date: 20080709 |
|
| CX01 | Expiry of patent term |