CN103199453A - Nitrogen insulation ring main unit - Google Patents
Nitrogen insulation ring main unit Download PDFInfo
- Publication number
- CN103199453A CN103199453A CN201310084762XA CN201310084762A CN103199453A CN 103199453 A CN103199453 A CN 103199453A CN 201310084762X A CN201310084762X A CN 201310084762XA CN 201310084762 A CN201310084762 A CN 201310084762A CN 103199453 A CN103199453 A CN 103199453A
- Authority
- CN
- China
- Prior art keywords
- vacuum circuit
- main shaft
- nitrogen
- enclosed housing
- switch
- 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.)
- Pending
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- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 title claims abstract description 64
- 238000009413 insulation Methods 0.000 title claims abstract description 40
- 229910052757 nitrogen Inorganic materials 0.000 title claims abstract description 32
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims abstract description 26
- 238000002955 isolation Methods 0.000 claims description 29
- 229910052802 copper Inorganic materials 0.000 claims description 24
- 239000010949 copper Substances 0.000 claims description 24
- 230000003068 static effect Effects 0.000 claims description 11
- 239000007769 metal material Substances 0.000 claims description 3
- 230000005611 electricity Effects 0.000 claims description 2
- 230000007246 mechanism Effects 0.000 description 9
- 239000004020 conductor Substances 0.000 description 3
- 239000007789 gas Substances 0.000 description 3
- 230000001681 protective effect Effects 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- QGZKDVFQNNGYKY-NJFSPNSNSA-N nitrogen-16 Chemical compound [16NH3] QGZKDVFQNNGYKY-NJFSPNSNSA-N 0.000 description 2
- 230000008033 biological extinction Effects 0.000 description 1
- 230000005283 ground state Effects 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
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- Gas-Insulated Switchgears (AREA)
Abstract
The invention discloses a nitrogen insulation ring main unit which comprises a closed type box body, a disconnecting switch fixed contact, a main bus, a buscouple device, a vacuum circuit breaker fixed contact, an outlet copper wire, a cable outlet sleeve, a disconnecting switch insulation main shaft, a disconnecting switch isolator and a vacuum circuit breaker moving contact. The buscouple device is placed on the closed type box body, one end of the main bus is connected with the buscouple device, the upper end of the disconnecting switch fixed contact is connected with the other end of the main bus, and the lower end of the disconnecting switch fixed contact is electrically connected with vacuum circuit breaker moving contact. The disconnecting switch insulation main shaft is arranged on the closed type box body, and the disconnecting switch isolator is placed on the disconnecting switch insulation main shaft. When the disconnecting switch insulation switch insulation main shaft rotates, the disconnecting switch isolator can push the vacuum circuit breaker moving contact to move vertically to achieve switch on or disjunction of the vacuum circuit breaker moving contact and the vacuum circuit breaker fixed contact. The lower end of the vacuum circuit breaker fixed contact is connected with the outlet copper wire. The closed type box body is filled with nitrogen. The nitrogen insulation ring main unit is stable in performance and environmental-friendly.
Description
Technical field
The present invention relates to a kind of nitrogen insulation ring main unit; particularly operating mechanism of a kind of need can control isolating switch and vacuum circuit-breaker action, compact conformation, utilize nitrogen as the nitrogen of protective gas insulation ring main unit, belong to the switchgear technical field.
Background technology
Vacuum interrupter in the ring main unit bears higher voltage withstand class, makes that the vacuum extinction chamber size is bigger, finally causes the vacuum circuit-breaker size very big.
Use 2 operating mechanisms to control vacuum circuit-breaker and isolating switch respectively, and between two operating mechanisms, to add mechanical interlocking device, make the reliability of prior art low, cost is high and cause equipment volume to increase, and makes the requisite space of forming complete set of equipments strengthen; Simultaneously because operating personnel's misoperation produces misoperation through regular meeting.
Two sections property structures of prior art increased the quantity of electric conductor parts and interconnect between faying surface quantity, many costs of consumptive material height, and the faying surface contact resistance can cause the increase of equipment heating amount.
Simultaneously, be filled with SF6 as protective gas in the space of existing ring main unit, well-known, SF6 is 23900 times of CO2 to atmospheric harm, the atmospheric environment that the serious harm mankind depend on for existence.
Summary of the invention
The object of the present invention is to provide operating mechanism of a kind of need can control action, the compact conformation of isolating switch and vacuum circuit-breaker, utilize nitrogen as the nitrogen insulation ring main unit of protective gas.
The present invention is achieved through the following technical solutions: a kind of nitrogen insulation ring main unit comprises that enclosed housing, static contact isolation switch, main bus bar, female connection device, vacuum circuit-breaker fixed contact, outlet copper are led, cable outlet sleeve pipe, isolation switch insulation main shaft, isolating switch disconnecting link, vacuum circuit-breaker moving contact; Described female connection device is arranged on the enclosed housing; One end and the mother of described main bus bar join device and link to each other; The upper end of described static contact isolation switch links to each other with the other end of main bus bar; The lower end of described static contact isolation switch is electrically connected with the vacuum circuit-breaker moving contact; Described isolation switch insulation main shaft is arranged on the enclosed housing, and described isolating switch disconnecting link is arranged on the isolation switch insulation main shaft; Rotary isolation switch insulation main shaft, described isolating switch disconnecting link can promote the vacuum circuit-breaker moving contact and move up and down, to realize combined floodgate or the disjunction of vacuum circuit-breaker moving contact and vacuum circuit-breaker fixed contact; The lower end of described vacuum circuit-breaker fixed contact is led with outlet copper and is linked to each other; Described cable outlet sleeve pipe is arranged on the enclosed housing; Described outlet copper is led with the cable outlet sleeve pipe and is linked to each other; Be full of nitrogen in the described enclosed housing.
Preferably, described nitrogen insulation ring main unit also comprises earthed switch main shaft, earthed switch disconnecting link, ground connection soft copper band; One end of described ground connection soft copper band connects the earthed switch main shaft and links to each other, and the other end links to each other with enclosed housing; Described earthed switch disconnecting link is arranged on the earthed switch main shaft, when rotation earthed switch main shaft earthed switch disconnecting link and outlet copper is conducted electricity to be connected or disconnects.
Preferably, described enclosed housing is provided with the nitrogen fill valve door, with the convenient nitrogen of annotating in the enclosed housing of giving.
Preferably, the bottom of described enclosed housing is provided with rupture pressure disc.
Preferably, described enclosed housing is to be made by metal material.
Beneficial effect of the present invention is embodied in: nitrogen of the present invention insulation ring main unit, isolating switch disconnecting link directly contact with the moving contact of vacuum circuit-breaker and also can promote implementation that the vacuum circuit-breaker moving contact contacts with the vacuum circuit-breaker fixed contact and make the entire equipment compact conformation; The isolation switch insulation main shaft directly drives the move up and down closed conducting that realizes isolating switch and the closed conducting of vacuum interrupter of isolating switch disconnecting link and carries out in regular turn, does not have the possibility of any misoperation; The present invention program directly with an operating mechanism can realize isolating, the function of combined floodgate, separating brake; The integrated design of the present invention program's isolating switch and vacuum circuit-breaker makes to be needed to be born jointly by isolating switch and vacuum circuit-breaker by the withstand voltage that the vacuum interrupter in the vacuum circuit-breaker is born originally, the insulating requirements of vacuum interrupter reduces greatly, make the vacuum circuit-breaker compact dimensions, cost reduces; Greatly reduced simultaneously quantity and the faying surface of conductor, made contact resistance reduce, whole switchgear caloric value reduces, and equipment dependability increases; Adopt nitrogen as dielectric in addition, protection atmosphere environment.
Description of drawings
Below in conjunction with accompanying drawing technical solution of the present invention is described further:
Fig. 1 is the cutaway view of nitrogen insulation ring main unit of the present invention;
Wherein: 1, enclosed housing; 2, static contact isolation switch; 3, main bus bar; 4, female connection device; 5, vacuum circuit-breaker fixed contact; 6, outlet copper is led; 7, cable outlet sleeve pipe; 8, first operating mechanism; 9, isolation switch insulation main shaft; 10, isolating switch disconnecting link; 11, vacuum circuit-breaker moving contact; 12, second operation machine structure; 13, earthed switch main shaft; 14, earthed switch disconnecting link; 15, ground connection soft copper band; 16, nitrogen; 17, nitrogen fill valve door; 18, rupture pressure disc.
Embodiment
Below in conjunction with accompanying drawing the present invention is described.
Be a kind of nitrogen insulation ring main unit of the present invention as shown in Figure 1, comprise that enclosed housing 1, static contact isolation switch 2, main bus bar 3, female connection device 4, vacuum circuit-breaker fixed contact 5, outlet copper lead 6, cable outlet sleeve pipe 7, isolation switch insulation main shaft 9, isolating switch disconnecting link 10, vacuum circuit-breaker moving contact 11, earthed switch main shaft 13, earthed switch disconnecting link 14, ground connection soft copper band 15; Described female connection device 4 is arranged on the enclosed housing 1; One end and the mother of described main bus bar 3 joins device 4 and links to each other; The upper end of described static contact isolation switch 2 links to each other with the other end of main bus bar 3; The lower end of described static contact isolation switch 2 is electrically connected with vacuum circuit-breaker moving contact 5; Described isolation switch insulation main shaft 9 is arranged on the enclosed housing 1, and described isolating switch disconnecting link 10 is arranged on the isolation switch insulation main shaft 9; First operating mechanism, 8 rotary isolation switch insulation main shaft 9, described isolating switch disconnecting link 10 can promote vacuum circuit-breaker moving contact 11 and move up and down, to realize combined floodgate or the disjunction of vacuum circuit-breaker moving contact 11 and vacuum circuit-breaker fixed contact 5; The lower end of described vacuum circuit-breaker fixed contact 5 is led 6 with outlet copper and is linked to each other; Described cable outlet sleeve pipe 7 is arranged on the enclosed housing 1; Described outlet copper is led 6 and is linked to each other with cable outlet sleeve pipe 7; Be full of nitrogen 16 in the described enclosed housing 1; One end of described ground connection soft copper band 15 connects earthed switch main shaft 13 and links to each other, and the other end links to each other with enclosed housing 1; Described earthed switch disconnecting link 14 is arranged on the earthed switch main shaft 13, can make earthed switch disconnecting link 14 and outlet copper lead 6 when second operation machine structure 12 rotation earthed switch main shafts 13 and be electrically connected or disconnect; Described enclosed housing 1 is provided with nitrogen fill valve door 17, with the convenient nitrogen 16 of annotating in the enclosed housing 1 of giving; The bottom of described enclosed housing 1 is provided with rupture pressure disc 18; Described enclosed housing 1 is to be made by metal material.
During use, the present invention program's function realizes:
1, the connection of parts: static contact isolation switch connects with female connection device by main bus bar; The vacuum circuit-breaker fixed contact is led with the cable outlet sleeve pipe by outlet copper and is connected; The earthed switch disconnecting link connects with ground connection soft copper band by the earthed switch main shaft, and ground connection soft copper band connects with the shell of metal cabinet;
2, combined floodgate and disjunction: the rotation of first operating mechanism drives the isolation switch insulation main axis rotation, the isolation switch insulation main shaft drives the isolating switch disconnecting link, the isolation switch blade strap of the brake moves the branch that closes of vacuum circuit-breaker moving contact and vacuum circuit-breaker fixed contact, realizes combined floodgate and the disjunction of this programme;
3, ground connection: under the disjunction state, it is logical that the rotation of second operation machine structure drive earthed switch main shaft makes that earthed switch disconnecting link and outlet copper connect, and makes cable socket and ground connect, and this programme enters into ground state.
Beneficial effect of the present invention is embodied in: nitrogen of the present invention insulation ring main unit, isolating switch disconnecting link directly contact with the moving contact of vacuum circuit-breaker and also can promote implementation that the vacuum circuit-breaker moving contact contacts with the vacuum circuit-breaker fixed contact and make the entire equipment compact conformation; The isolation switch insulation main shaft directly drives the move up and down closed conducting that realizes isolating switch and the closed conducting of vacuum interrupter of isolating switch disconnecting link and carries out in regular turn, does not have the possibility of any misoperation; The present invention program directly with an operating mechanism can realize isolating, the function of combined floodgate, separating brake; The integrated design of the present invention program's isolating switch and vacuum circuit-breaker makes to be needed to be born jointly by isolating switch and vacuum circuit-breaker by the withstand voltage that the vacuum interrupter in the vacuum circuit-breaker is born originally, the insulating requirements of vacuum interrupter reduces greatly, make the vacuum circuit-breaker compact dimensions, cost reduces; Greatly reduced simultaneously quantity and the faying surface of conductor, made contact resistance reduce, whole switchgear caloric value reduces, and equipment dependability increases; Adopt nitrogen as dielectric in addition, protection atmosphere environment.
Above-described embodiment only is explanation technical conceive of the present invention and characteristics; its purpose is to allow the personage that is familiar with this technology can understand content of the present invention and is implemented; can not limit protection scope of the present invention with this; all equivalences that spirit essence is done according to the present invention change or modify, and all should be encompassed in protection scope of the present invention.
Claims (5)
1. nitrogen insulation ring main unit comprises that enclosed housing, static contact isolation switch, main bus bar, female connection device, vacuum circuit-breaker fixed contact, outlet copper are led, cable outlet sleeve pipe, isolation switch insulation main shaft, isolating switch disconnecting link, vacuum circuit-breaker moving contact; Described female connection device is arranged on the enclosed housing; One end and the mother of described main bus bar join device and link to each other; The upper end of described static contact isolation switch links to each other with the other end of main bus bar; It is characterized in that: the lower end of described static contact isolation switch is electrically connected with the vacuum circuit-breaker moving contact; Described isolation switch insulation main shaft is arranged on the enclosed housing, and described isolating switch disconnecting link is arranged on the isolation switch insulation main shaft; On the rotary isolation switch insulation main shaft, described isolating switch disconnecting link can promote the vacuum circuit-breaker moving contact and move up and down, to realize combined floodgate or the disjunction of vacuum circuit-breaker moving contact and vacuum circuit-breaker fixed contact; The lower end of described vacuum circuit-breaker fixed contact is led with outlet copper and is linked to each other; Described cable outlet sleeve pipe is arranged on the enclosed housing; Described outlet copper is led with the cable outlet sleeve pipe and is linked to each other; Be full of nitrogen in the described enclosed housing.
2. nitrogen insulation ring main unit according to claim 1 is characterized in that: also comprise earthed switch main shaft, earthed switch disconnecting link, ground connection soft copper band; One end of described ground connection soft copper band connects the earthed switch main shaft and links to each other, and the other end links to each other with enclosed housing; Described earthed switch disconnecting link is arranged on the earthed switch main shaft, when rotation earthed switch main shaft earthed switch disconnecting link and outlet copper is conducted electricity to be connected or disconnects.
3. nitrogen according to claim 1 insulation ring main unit, it is characterized in that: described enclosed housing is provided with the nitrogen fill valve door, with the convenient nitrogen of annotating in the enclosed housing of giving.
4. nitrogen according to claim 1 insulation ring main unit, it is characterized in that: the bottom of described enclosed housing is provided with rupture pressure disc.
5. nitrogen according to claim 1 insulation ring main unit, it is characterized in that: described enclosed housing is to be made by metal material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310084762XA CN103199453A (en) | 2012-04-17 | 2013-03-18 | Nitrogen insulation ring main unit |
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210112478.4 | 2012-04-17 | ||
| CN201210112478 | 2012-04-17 | ||
| CN201310084762XA CN103199453A (en) | 2012-04-17 | 2013-03-18 | Nitrogen insulation ring main unit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103199453A true CN103199453A (en) | 2013-07-10 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310084762XA Pending CN103199453A (en) | 2012-04-17 | 2013-03-18 | Nitrogen insulation ring main unit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103199453A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108390304A (en) * | 2018-03-23 | 2018-08-10 | 华翔翔能电气股份有限公司 | Environment-friendly type air insulation ring main unit |
| CN111900661A (en) * | 2020-07-29 | 2020-11-06 | 湖北省电力装备有限公司 | A normal pressure air-insulated ring network cabinet |
| CN114284099A (en) * | 2021-11-12 | 2022-04-05 | 上海置信日港电气有限公司 | Five station switches of environmental protection gas insulation looped netowrk cabinet with isolating on |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2424524Y (en) * | 2000-06-08 | 2001-03-21 | 徐德征 | On-off device of isolation load switch |
| JP2005304200A (en) * | 2004-04-13 | 2005-10-27 | Nissin Electric Co Ltd | Gas insulated switchgear |
| CN201113292Y (en) * | 2007-08-21 | 2008-09-10 | 北京合纵科技股份有限公司 | A gas-insulated vacuum ring network switchgear |
| CN201417899Y (en) * | 2009-06-24 | 2010-03-03 | 江苏宜源诺成电气有限公司 | SF* insulating vacuum demarcation switch cabinet |
| CN202189724U (en) * | 2011-08-30 | 2012-04-11 | 温州新机电器有限公司 | High-voltage vacuum switch |
| CN202906280U (en) * | 2012-04-17 | 2013-04-24 | 苏州朗格电气有限公司 | Nitrogen insulating ring main unit |
-
2013
- 2013-03-18 CN CN201310084762XA patent/CN103199453A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2424524Y (en) * | 2000-06-08 | 2001-03-21 | 徐德征 | On-off device of isolation load switch |
| JP2005304200A (en) * | 2004-04-13 | 2005-10-27 | Nissin Electric Co Ltd | Gas insulated switchgear |
| CN201113292Y (en) * | 2007-08-21 | 2008-09-10 | 北京合纵科技股份有限公司 | A gas-insulated vacuum ring network switchgear |
| CN201417899Y (en) * | 2009-06-24 | 2010-03-03 | 江苏宜源诺成电气有限公司 | SF* insulating vacuum demarcation switch cabinet |
| CN202189724U (en) * | 2011-08-30 | 2012-04-11 | 温州新机电器有限公司 | High-voltage vacuum switch |
| CN202906280U (en) * | 2012-04-17 | 2013-04-24 | 苏州朗格电气有限公司 | Nitrogen insulating ring main unit |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108390304A (en) * | 2018-03-23 | 2018-08-10 | 华翔翔能电气股份有限公司 | Environment-friendly type air insulation ring main unit |
| CN111900661A (en) * | 2020-07-29 | 2020-11-06 | 湖北省电力装备有限公司 | A normal pressure air-insulated ring network cabinet |
| CN114284099A (en) * | 2021-11-12 | 2022-04-05 | 上海置信日港电气有限公司 | Five station switches of environmental protection gas insulation looped netowrk cabinet with isolating on |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20130710 |