CN201340807Y - Ground contact seat of high-voltage switch - Google Patents
Ground contact seat of high-voltage switch Download PDFInfo
- Publication number
- CN201340807Y CN201340807Y CNU200820157373XU CN200820157373U CN201340807Y CN 201340807 Y CN201340807 Y CN 201340807Y CN U200820157373X U CNU200820157373X U CN U200820157373XU CN 200820157373 U CN200820157373 U CN 200820157373U CN 201340807 Y CN201340807 Y CN 201340807Y
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- Prior art keywords
- ground
- switch
- ground connection
- touch base
- connection touch
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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 - Fee Related
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- Driving Mechanisms And Operating Circuits Of Arc-Extinguishing High-Tension Switches (AREA)
Abstract
The utility model relates to a high-voltage switch and a ground contact seat thereof, in particular to a ground contact seat that a three working position load switch which is matched with a ground working position of a high-voltage switch. The ground contact seat of a high-voltage switch comprises a contact seat body, a ground bus and a ground contact seat support; the ground contact seat body is L-shaped; one L-shaped arm of the contact seat body and the ground bus are arranged on the ground contact seat support by bolts; the ground contact seat support is fixed on the side surface of a ground switch frame; the center line of the ground contact support is higher than the position of the switch-on ground seat body of the high-voltage ground switch; and a wafer of the high-voltage ground switch contacts with another L-shaped arm of the ground contact seat body. The ground contact seat of a high-voltage switch can make the electromotive force on the high-voltage ground switch when the switch is turned off to be in the same direction with the switch-on direction of the high-voltage ground witch, thereby facilitating to keep switching on, and preventing a ground knife from exiting.
Description
Technical field
The utility model relates to high-voltage switch gear and ground connection touch base thereof, relates in particular to the ground connection touch base that matches with the ground connection station of high-voltage switch gear in the three-stations load switch.
Background technology
Three-stations load switch has connection, disconnection, three stations of ground connection, has simple in structure, low-cost characteristics.Three-stations load switch can close and close and cut-off load current and overload current, also can close to close and cut-off nonloaded line, unloaded transformer and capacitor group etc.Referring to Fig. 1, when on-load switch is in earthing position, require high voltage ground switch 3 can bear bigger ground connection making current.High voltage ground switch 3 is driven by main shaft 7, high voltage ground switch 3 comprises earthed switch body 31 and is positioned at the contact 32 of earthed switch body head, the ground connection touch base comprises ground connection touch base body 1, ground strap 4 and ground connection touch base support 21, ground connection touch base body 1 is installed on the ground connection touch base support 21 through bolt 6 with ground strap 4, and ground connection touch base support 21 fuses with earthed switch framework 2.Because existing ground connection touch base body 1 is mounted on the ground strap 4, and ground connection touch base body 1 is that in-line is tabular; When high voltage ground switch 3 was in the ground connection station, the contact 32 of high voltage ground switch 3 contacted with ground connection touch base body 1, and earth current I is bottom-up to flow into contact 32 to earthed switch body 31 through ground strap 4, ground connection touch base body 1.When high voltage ground switch 3 during by tens of and even hundreds of kilo-ampere short circuit current, high voltage ground switch 3 is subjected to the electric power F opposite with the direction of closing a floodgate, promptly electric power F upwards, as shown in Figure 1, its big I reaches hundreds of even up to ten thousand newton.Described electric power is a kind of mechanical force of distribution, acts on current and the supporter thereof; When conductor dbus was crossed running current, the electric power switching devices can not produce obvious influence.When high voltage ground switch 3 during by hundreds of kilo-ampere short circuit current, if surpassing the combined floodgate of high voltage ground switch 3, the electric power size keep-ups pressure, then earthed switch body 31 (ground connection cutter) withdraws from, and causes closing closing failure, even causes the accident.Present most of manufacturing firm adopts the method that increases operating mechanism spring pressure or contact pressure to offset electrodynamic influence, but causes mechanism's operating work excessive easily, and mechanical impact force is excessive, the consequence that contact is easy to wear.
The utility model content
The purpose of this utility model is to provide a kind of ground connection touch base of high-voltage switch gear, and this ground connection touch base can make the fashionable electric power that is subjected in high voltage ground switch pass identical with high voltage ground switch combined floodgate direction, and helping closing a floodgate keeps, and prevents that the ground connection cutter from withdrawing from.
The utility model is achieved in that a kind of ground connection touch base of high-voltage switch gear, comprise ground connection touch base body, ground strap and ground connection touch base support, described ground connection touch base body is L shaped, L shaped arm of ground connection touch base body and ground strap are installed on the ground connection touch base support through bolt, ground connection touch base support is fixedly installed in the earthed switch frame facet, and the center line of ground connection touch base support is higher than high voltage ground switch combined floodgate ground connection touch base body position, and the contact of high voltage ground switch is contacted with L shaped another arm of ground connection touch base body.
The ground connection touch base of high-voltage switch gear of the present utility model is when high voltage ground switch is in the ground connection station, earth current from up to down flows into ground connection touch base body from the top ground strap of ground connection touch base, flow into the contact of high voltage ground switch again, the electric power that earthed switch body (ground connection cutter) is subjected to is directed downwards, identical with the contact of earth direction, helping closing a floodgate keeps, and prevents that the ground connection cutter from withdrawing from.The utility model is simple in structure, and parts are easily manufactured, can improve equipment reliability of operation in electric power system greatly.
Description of drawings
Fig. 1 is in the structural representation of ground connection station for existing high-voltage switch gear;
Fig. 2 comprises that the high-voltage switch gear of the ground connection touch base of the utility model high-voltage switch gear is in the structural representation of ground connection station.
Among the figure: 1 existing ground connection touch base body, 2 earthed switch frameworks, 21 ground connection touch base supports, 3 high voltage ground switchs, 31 earthed switch bodies, 32 contacts, 4 ground straps, 5 ground connection touch base bodies of the present utility model, 6 bolts, 7 main shafts; The electric power that the F earthed switch is subjected to, I earth current, arrow indication are that electric power direction or earth current flow to.
Embodiment
The utility model is described in further detail below in conjunction with the drawings and specific embodiments.
Referring to Fig. 2, a kind of ground connection touch base of high-voltage switch gear, comprise ground connection touch base body 5, ground strap 4 and ground connection touch base support 21, described ground connection touch base body 5 is L shaped, ground connection touch base body 5L shape one arm and ground strap 4 are installed on the ground connection touch base support 21 through bolt 6, ground connection touch base support 21 is fixedly installed in earthed switch framework 2 sides, and the center line of ground connection touch base support 21 is higher than high voltage ground switch 3 combined floodgate ground connection touch base bodies 5 positions, and the contact 32 of high voltage ground switch 3 is contacted with another arm of ground connection touch base body 5L shape.
When high voltage ground switch 3 contacts 32 are in earthing position, be that the contact 32 of high voltage ground switch 3 is when being contacted with another arm of ground connection touch base body 5L shape, earth current I from up to down flows into L shaped ground connection touch base body 5 from the top ground strap 4 of ground connection touch base, flow into the contact 32 of high voltage ground switch again, the electric power F that earthed switch body 31 (ground connection cutter) is subjected to is directed downwards, identical with the contact of earth direction, helping closing a floodgate keeps, and prevents that the ground connection cutter from withdrawing from.
The utility model ground connection touch base is simple in structure, and parts are easily manufactured, can improve equipment reliability of operation in electric power system greatly.
Claims (1)
1, a kind of ground connection touch base of high-voltage switch gear, comprise ground connection touch base body, ground strap and ground connection touch base support, it is characterized in that: described ground connection touch base body is L shaped, L shaped arm of ground connection touch base body and ground strap are installed on the ground connection touch base support through bolt, ground connection touch base support is fixedly installed in the earthed switch frame facet, and the center line of ground connection touch base support is higher than high voltage ground switch combined floodgate ground connection touch base body position, and the contact of high voltage ground switch is contacted with L shaped another arm of ground connection touch base body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU200820157373XU CN201340807Y (en) | 2008-12-18 | 2008-12-18 | Ground contact seat of high-voltage switch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU200820157373XU CN201340807Y (en) | 2008-12-18 | 2008-12-18 | Ground contact seat of high-voltage switch |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201340807Y true CN201340807Y (en) | 2009-11-04 |
Family
ID=41236350
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU200820157373XU Expired - Fee Related CN201340807Y (en) | 2008-12-18 | 2008-12-18 | Ground contact seat of high-voltage switch |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201340807Y (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103474284A (en) * | 2013-09-24 | 2013-12-25 | 东盟电气集团浙江开关有限公司 | Three-work-station dual-ground-connection load switch |
| CN103646800A (en) * | 2013-12-05 | 2014-03-19 | 北京双杰电气股份有限公司 | Double-throw load switch |
| CN106898521A (en) * | 2015-12-17 | 2017-06-27 | Abb技术有限公司 | Three-station and high-tension switch gear |
| CN109065382A (en) * | 2018-07-05 | 2018-12-21 | 国网浙江省电力有限公司舟山供电公司 | The machine driving single-pole double throw earthing or grounding means of DC earthing electric branch test |
-
2008
- 2008-12-18 CN CNU200820157373XU patent/CN201340807Y/en not_active Expired - Fee Related
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103474284A (en) * | 2013-09-24 | 2013-12-25 | 东盟电气集团浙江开关有限公司 | Three-work-station dual-ground-connection load switch |
| CN103474284B (en) * | 2013-09-24 | 2015-07-22 | 东盟电气集团浙江开关有限公司 | Three-work-station dual-ground-connection load switch |
| CN103646800A (en) * | 2013-12-05 | 2014-03-19 | 北京双杰电气股份有限公司 | Double-throw load switch |
| CN103646800B (en) * | 2013-12-05 | 2015-10-28 | 北京双杰电气股份有限公司 | Double-throwing load switch |
| CN106898521A (en) * | 2015-12-17 | 2017-06-27 | Abb技术有限公司 | Three-station and high-tension switch gear |
| CN106898521B (en) * | 2015-12-17 | 2020-01-14 | Abb瑞士股份有限公司 | Three-position switch and high-voltage switch equipment |
| CN109065382A (en) * | 2018-07-05 | 2018-12-21 | 国网浙江省电力有限公司舟山供电公司 | The machine driving single-pole double throw earthing or grounding means of DC earthing electric branch test |
| CN109065382B (en) * | 2018-07-05 | 2024-02-20 | 国网浙江省电力有限公司舟山供电公司 | Mechanical transmission single-pole double-throw grounding device for direct-current grounding branch test |
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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: 20091104 Termination date: 20111218 |