CN202855601U - Single-arm vertical-folding insertion-type outdoor high-voltage direct-current grounding switch - Google Patents
Single-arm vertical-folding insertion-type outdoor high-voltage direct-current grounding switch Download PDFInfo
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- CN202855601U CN202855601U CN 201220503803 CN201220503803U CN202855601U CN 202855601 U CN202855601 U CN 202855601U CN 201220503803 CN201220503803 CN 201220503803 CN 201220503803 U CN201220503803 U CN 201220503803U CN 202855601 U CN202855601 U CN 202855601U
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- switch
- grounding
- voltage direct
- outdoor high
- arm vertical
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Abstract
The utility model discloses a single-arm vertical-folding insertion-type outdoor high-voltage direct-current grounding switch, particularly, relates to a grounding switch in a +/- 816kV ultra-high-voltage power system. The grounding switch includes a static contact (2), support post insulators (3), a grounding knife-switch tube (4), a moving contact (5), a chassis (6), a base support (7) and a motor operating mechanism (8). According to the grounding switch of the utility model, a vertical fracture is formed between a grounding knife switch and the static contact, when the grounding knife switch is switched off. When the grounding switch is switched on, the grounding knife-switch tube performs stretching movement; and when the grounding switch is switched off, the grounding knife-switch tube performs folding movement. The single-arm vertical-folding insertion-type outdoor high-voltage direct-current grounding switch of the utility model has the advantages of simple structure, stable electrical performance, stable and reliable movement, small operating force, small switch-on impact, excellent corrosion resistance, long service life, and the like.
Description
Technical field
Earthed switch in a kind of ± 816kV extra-high voltage electric power system that the utility model relates to, the specifically folding inserted outdoor high voltage direct current earthed switch of a kind of single-arm vertical.
Background technology
UHV transmission has the inherent characteristic that large capacity, remote, low-loss, province take up an area, and is the power transmission mode that meets China's fundamental realities of the country.The employing of UHV transmission technology realizes wider most optimum distribution of resources, promotes Efficient Development and the utilization of China's energy, promotes the sustainable development of economy and society.DC line is subject to the support of various circles of society because the point-to-point form of main employing is less to the interference of operation of power networks.The high voltage direct current earthed switch is one of important primary equipment in the high voltage direct current power transmission and transforming equipment; the high-voltage electrical equipments such as the high voltage bus that the confession high-tension line is overhauled quilt under power-off condition, circuit breaker, instrument transformer, isolating switch carry out reliable ground; personal safety with protection visual plant and maintainer; in electric power system, occupy an important position, higher to job stability and reliability requirement.
Summary of the invention
For solving the technical problem of above-mentioned existence, the utility model provides a kind of single-arm vertical to fold inserted outdoor high voltage direct current earthed switch, and is simple in structure, electric property is stable, and stable action is reliable, and operating physical force is little, closing a floodgate, it is little to impact, and Corrosion Protection is good, long service life.
For achieving the above object, the technical solution adopted in the utility model is as follows:
A kind of single-arm vertical folds inserted outdoor high voltage direct current earthed switch, include fixed contact, post insulator, the earthing pipe, moving contact, underframe, base rack and electric motor operating mechanism, described base rack is fixed on the basis, ground, described base rack top is fixedly installed underframe, described underframe top is fixedly installed post insulator, the top of described post insulator is fixedly installed fixed contact, the upper and lower of described fixed contact is provided with grading ring, one side of described underframe is provided with the earthing pipe, described earthing pipe is that accordion structure and top are fixedly installed moving contact, one side of described base rack is provided with electric motor operating mechanism, and described electric motor operating mechanism is connected with described earthing pipe with drive link by vertical links.
Described post insulator is the twin columns structure.
Described earthing pipe is connected to form by gear-rack-driving structure by upper contact tube and lower contact tube.
Form vertical-fracture during the utility model earthing switch blade separating brake and between the fixed contact, the earthing pipe is done stretching routine during combined floodgate, then do folding movement during separating brake, have simple in structurely, electric property is stable, and stable action is reliable, operating physical force is little, closing a floodgate, it is little to impact, and Corrosion Protection is good, the characteristics such as long service life.
Description of drawings
Fig. 1 is structural representation of the present utility model.
Embodiment
Below in conjunction with the drawings and specific embodiments the utility model is described in detail:
Be illustrated in figure 1 as a specific embodiment of the present utility model, include fixed contact 2, post insulator 3, earthing pipe 4, moving contact 5, underframe 6, base rack 7 and electric motor operating mechanism 8, described base rack 7 is fixed on the basis, ground, described base rack 7 tops are fixedly installed underframe 6, described underframe 6 tops are fixedly installed the post insulator 3 of twin columns structure, the top of described post insulator 3 is fixedly installed fixed contact 2, the upper and lower of described fixed contact 2 is provided with grading ring 1, one side of described underframe 6 is provided with earthing pipe 4, described earthing pipe 4 is fixedly installed moving contact 5 for accordion structure and top, the foldable structure of described earthing pipe 4 is comprised of upper contact tube and lower contact tube, connect by gear-rack-driving structure, one side of described base rack 7 is provided with electric motor operating mechanism 8, and described electric motor operating mechanism 8 is connected with drive link by vertical links 9 and is connected with described earthing pipe 4.
When the utility model closes a floodgate, electromotor operating mechanism 8 rotates by the connecting lever that vertical links 9, drive link 10 drive 4 times contact tube ends of earthing pipe, the lower contact tube that drives earthing pipe 4 is done clockwise rotation in perpendicular, do stretching routine when the upper contact tube that drives earthing pipe 4 by gear-tooth bar drive mechanism simultaneously rotates with lower contact tube; Until the lower contact tube of earthing pipe 4 rotates to vertical position, this moment earthing pipe 4 full extension, contact tube and lower contact tube are in alignment it on, moving contact 5 inserts also close contact with it of the interior annular fingertip of fixed contacts 2, electric motor operating mechanism 8 stops action, and making process finishes.
The separating brake process in contrast, electric motor operating mechanism 8 rotates by the connecting lever that vertical links 9, drive link 10 drive 4 times contact tube ends of earthing pipe, thereby drive earthing pipe 4 and do folding movement, until the lower contact tube of earthing pipe 4 rotates to horizontal level, this moment the earthing pipe about in the of 4 contact tube fold fully, electric motor operating mechanism 8 stops action, and the separating brake process finishes.
Certainly; above-mentioned explanation is not to be to restriction of the present utility model; the utility model also is not limited in above-mentioned giving an example, and the variation that those skilled in the art make in essential scope of the present utility model, remodeling, interpolation or replacement also should belong to protection range of the present utility model.
Claims (3)
1. a single-arm vertical folds inserted outdoor high voltage direct current earthed switch, it is characterized in that, include fixed contact (2), post insulator (3), earthing pipe (4), moving contact (5), underframe (6), base rack (7) and electric motor operating mechanism (8), described base rack (7) is fixed on the basis, ground, described base rack (7) top is fixedly installed underframe (6), described underframe (6) top is fixedly installed post insulator (3), the top of described post insulator (3) is fixedly installed fixed contact (2), the upper and lower of described fixed contact (2) is provided with grading ring (1), one side of described underframe (6) is provided with earthing pipe (4), described earthing pipe (4) is fixedly installed moving contact (5) for accordion structure and top, one side of described base rack (7) is provided with electric motor operating mechanism (8), and described electric motor operating mechanism (8) is connected 10 by vertical links (9) with drive link) be connected with described earthing pipe (4).
2. the folding inserted outdoor high voltage direct current earthed switch of single-arm vertical according to claim 1 is characterized in that described post insulator (3) is the twin columns structure.
3. the folding inserted outdoor high voltage direct current earthed switch of single-arm vertical according to claim 1 is characterized in that described earthing pipe (4) is connected to form by gear-rack-driving structure by upper contact tube and lower contact tube.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220503803 CN202855601U (en) | 2012-09-29 | 2012-09-29 | Single-arm vertical-folding insertion-type outdoor high-voltage direct-current grounding switch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220503803 CN202855601U (en) | 2012-09-29 | 2012-09-29 | Single-arm vertical-folding insertion-type outdoor high-voltage direct-current grounding switch |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202855601U true CN202855601U (en) | 2013-04-03 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220503803 Expired - Fee Related CN202855601U (en) | 2012-09-29 | 2012-09-29 | Single-arm vertical-folding insertion-type outdoor high-voltage direct-current grounding switch |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202855601U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2014190906A1 (en) * | 2013-05-29 | 2014-12-04 | 国家电网公司 | High-voltage direct-current grounding switch and stationary contact component thereof |
| CN106024494A (en) * | 2016-07-27 | 2016-10-12 | 山东泰开隔离开关有限公司 | 1100KV opening and closing super class B induced current outdoor high voltage AC grounding switch |
-
2012
- 2012-09-29 CN CN 201220503803 patent/CN202855601U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2014190906A1 (en) * | 2013-05-29 | 2014-12-04 | 国家电网公司 | High-voltage direct-current grounding switch and stationary contact component thereof |
| CN104252990A (en) * | 2013-05-29 | 2014-12-31 | 国家电网公司 | A HVDC grounding switch and a stationary contact component thereof |
| CN104252990B (en) * | 2013-05-29 | 2017-09-01 | 国家电网公司 | A kind of HVDC earthed switch and its static contact component |
| CN106024494A (en) * | 2016-07-27 | 2016-10-12 | 山东泰开隔离开关有限公司 | 1100KV opening and closing super class B induced current outdoor high voltage AC grounding switch |
| CN106024494B (en) * | 2016-07-27 | 2017-11-07 | 山东泰开隔离开关有限公司 | A kind of super faradic outdoor high voltage AC earthing switch of B classes of 1100KV foldings |
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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 |
Granted publication date: 20130403 Termination date: 20150929 |
|
| EXPY | Termination of patent right or utility model |