CN201514887U - Indoor high-voltage three-station isolating switch - Google Patents
Indoor high-voltage three-station isolating switch Download PDFInfo
- Publication number
- CN201514887U CN201514887U CN2009202234662U CN200920223466U CN201514887U CN 201514887 U CN201514887 U CN 201514887U CN 2009202234662 U CN2009202234662 U CN 2009202234662U CN 200920223466 U CN200920223466 U CN 200920223466U CN 201514887 U CN201514887 U CN 201514887U
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- CN
- China
- Prior art keywords
- isolating
- rotating shaft
- ground connection
- grounding
- connecting lever
- 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
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- Driving Mechanisms And Operating Circuits Of Arc-Extinguishing High-Tension Switches (AREA)
Abstract
The utility model discloses an indoor high-voltage three-station isolating switch in an electrical power transmission and transformation system. An isolating touch knife (1) and a grounding knife (11) are integrated into a whole by a steel structure substrate (7), rotating shafts, an insulating contact supporting seat (12) and a connecting rod (4); the substrate (7) is the frame of the whole isolating switch; the isolating touch knife (1) is fixed on the substrate (7) by the insulating contact supporting seat (12) at the static end; the grounding knife (11) is fixed on a grounding rotating shaft (8); a pressure spring (9) is arranged on the grounding knife (11); a pull rod crank arm (3) is welded on an isolating rotating shaft (5) and is connected with the isolating touch knife (1) through an insulating pull rod (2); an isolating crank arm (6) and a grounding crank arm (10) are respectively riveted on the isolating rotating shaft (5) and the grounding rotating shaft (8); and the isolating crank arm (6) and the grounding crank arm (10) are connected together by the connecting rod (4). The indoor high-voltage three-station isolating switch has reliable insulating property, simple and easy adjustment, reliable operation, compact structure, small volume and light weight, thereby reducing the volume of a switch cabinet.
Description
Technical field
The utility model relates to the indoor high-voltage isolating switch in a kind of electric power power transmission and transformation system, and is relevant with the tri-station isolating switch of band ground connection especially.
Background technology
Indoor high-voltage isolating switch is used for switching under the high-tension line current-carrying situation in the electric power power transmission and transformation system and the electric equipments such as high voltage bus circuit breaker that overhauled is carried out the electrical equipment isolation with charged high-tension line.At present, in the power transmission and transformation system of rated voltage 12kV, three-phase alternating current 50Hz, public is that isolating switch and earthed switch are installed separately, and both respectively take charge of its duty, and mechanical interlocking is arranged between the two.This mounting means makes the switch cubicle volume bigger, and the interlock complexity increases complete workload, and operation sequence is loaded down with trivial details.Along with the upgrading of High-Voltage Electrical Appliances original paper, being extensive use of of the particularly appearance of permanent magnetic actuator vacuum circuit breaker, and SF6 on-load switch requires the fixed high-voltage switch cubicle structure compact more, miniaturization more.Existing isolating switch can not satisfy this requirement.
The utility model content
The purpose of this utility model is the needs that adapt to the box switch cubicle of compact, designs a kind of miniaturization indoor high-voltage tri-station isolating switch that isolating switch and earthed switch are combined together.
The technical solution adopted in the utility model is: a kind of indoor high-voltage tri-station isolating switch, and comprise and isolate contact knife and ground connection cutter, isolate contact knife and ground connection cutter and unite two into one by steel construction pedestal, rotating shaft, insulation contact bearing and connecting rod.Pedestal is the framework of whole isolated switch, isolates contact knife and is fixed on the pedestal by quiet end insulation contact bearing, and the ground connection cutter is fixed in the ground connection rotating shaft, on the ground connection cutter stage clip is housed; The pull bar connecting lever is welded on isolates in the rotating shaft, and the pull bar connecting lever is connected with the isolation contact knife by insulated tension pole; Isolation connecting lever and ground connection connecting lever riveting respectively are contained in isolation rotating shaft and the ground connection rotating shaft; Isolating connecting lever and ground connection connecting lever is linked together by connecting rod.
The indoor high-voltage tri-station isolating switch that the utility model provides combines isolating switch and earthed switch together, has saved complexity interlocking between the two, realizes combined floodgate-separating brake-ground connection on same switch.Under the connection of connecting rod, realize to isolate and quick deciliter of ground connection, operate more laborsavingly, can guarantee that more on/off switch puts in place.Insulation property are reliable, adjust simple, reliable in action, compact conformation is small and exquisite, weight saving makes the switch cubicle volume-diminished.
Description of drawings
Accompanying drawing is the structural representation of an embodiment of the utility model indoor high-voltage tri-station isolating switch.
Embodiment
The utility model is described in further detail below in conjunction with accompanying drawing.
Among the figure: 1, isolate contact knife 2, insulated tension pole 3, pull bar connecting lever 4, connecting rod 5, isolation rotating shaft 6, isolation connecting lever 7, pedestal 8, ground connection rotating shaft 9, stage clip 10, ground connection connecting lever 11, ground connection cutter 12, insulation contact bearing
The utility model indoor high-voltage tri-station isolating switch will isolate contact knife 1 by steel construction pedestal 7, rotating shaft, insulation contact bearing 12 and connecting rod 4 and ground connection cutter 11 unites two into one, pedestal 7 is frameworks of whole isolated switch, isolating contact knife 1 is fixed on the pedestal 7 by quiet end insulation contact bearing 12, ground connection cutter 11 is fixed in the ground connection rotating shaft 8, and stage clip 9 is housed on the ground connection cutter 11; Pull bar connecting lever 3 is welded on isolates in the rotating shaft 5, and pull bar connecting lever 3 is connected with isolation contact knife 1 by insulated tension pole 2; Isolation connecting lever 6 and ground connection connecting lever 10 riveting respectively are contained in isolation rotating shaft 5 and the ground connection rotating shaft 8; Isolating connecting lever 6 and ground connection connecting lever 10 is linked together by connecting rod 4.
When ground connection rotating shaft 8 rotations, drive 11 rotations of ground connection cutter on the one hand, driving ground connection connecting lever 10 on the other hand rotates together, given isolation connecting lever 6 transmission by connecting rod 4 again, be contained in the isolation rotating shaft 5 owing to isolate connecting lever 6 rivetings, isolate rotating shaft 5 and also rotate this moment, and the isolation rotating shaft 5 of rotation drives 3 rotations of pull bar connecting lever again, pull bar connecting lever 3 drives by insulated tension pole 2 and isolates contact knife 1 action simultaneously, thereby has realized the course of action of whole isolated switch.In whole course of action, stage clip 9 is fixedly installed in pedestal 7 and the ground connection rotating shaft 8, when ground connection rotating shaft 8 is rotated, can carry out energy storage to stage clip 9, again because in rotary course, there is a maximum force in stage clip 9, so stage clip 9 exists energy storage, energy storage limiting value and releases the energy three phases in whole motion process, what the existence of this three phases could realize the utility model isolating switch just closes branch fast.
Claims (1)
1. an indoor high-voltage tri-station isolating switch comprises and isolates contact knife (1) and ground connection cutter (11), it is characterized in that: isolate contact knife (1) and ground connection cutter (11) and united two into one by steel construction pedestal (7), rotating shaft, insulation contact bearing (12) and connecting rod (4); Pedestal (7) is the framework of whole isolated switch, isolates contact knife (1) and is fixed on the pedestal (7) by quiet end insulation contact bearing (12), and ground connection cutter (11) is fixed in the ground connection rotating shaft (8), and stage clip (9) is housed on the ground connection cutter (11); Pull bar connecting lever (3) is welded on isolates in the rotating shaft (5), and pull bar connecting lever (3) is connected with isolation contact knife (1) by insulated tension pole (2); Isolation connecting lever (6) and ground connection connecting lever (10) riveting respectively are contained in isolation rotating shaft (5) and the ground connection rotating shaft (8); Isolating connecting lever (6) and ground connection connecting lever (10) is linked together by connecting rod (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202234662U CN201514887U (en) | 2009-09-15 | 2009-09-15 | Indoor high-voltage three-station isolating switch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202234662U CN201514887U (en) | 2009-09-15 | 2009-09-15 | Indoor high-voltage three-station isolating switch |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201514887U true CN201514887U (en) | 2010-06-23 |
Family
ID=42486298
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009202234662U Expired - Fee Related CN201514887U (en) | 2009-09-15 | 2009-09-15 | Indoor high-voltage three-station isolating switch |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201514887U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108922817A (en) * | 2018-07-10 | 2018-11-30 | 深圳市地铁集团有限公司运营总部 | Earthed system is isolated in traction rectifier transformer |
-
2009
- 2009-09-15 CN CN2009202234662U patent/CN201514887U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108922817A (en) * | 2018-07-10 | 2018-11-30 | 深圳市地铁集团有限公司运营总部 | Earthed system is isolated in traction rectifier transformer |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100623 Termination date: 20170915 |