CN101847840A - Annular net cabinet internally provided with vacuum breaker - Google Patents
Annular net cabinet internally provided with vacuum breaker Download PDFInfo
- Publication number
- CN101847840A CN101847840A CN 201010195751 CN201010195751A CN101847840A CN 101847840 A CN101847840 A CN 101847840A CN 201010195751 CN201010195751 CN 201010195751 CN 201010195751 A CN201010195751 A CN 201010195751A CN 101847840 A CN101847840 A CN 101847840A
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- breaker
- vacuum
- internally provided
- vacuum circuit
- main unit
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Abstract
The invention relates to an annular net cabinet internally provided with a vacuum breaker. Compared with the prior method for arranging the vacuum breaker in the cable chamber of the annular net cabinet, the method for arranging the vacuum breaker in the gas isolation box of the annular net cabinet can ensure that the vacuum breaker can not be easily affected by the external environment and has small installation volume so that a larger space is left in the cable chamber of the annular net cabinet and other elements can be installed in the larger space. Being arranged in the gas isolation box, the vacuum breaker has greatly improved position fit precision, rigidity, mechanical efficiency and reliability.
Description
Technical field
The present invention relates to a kind of ring main unit, particularly be used for the electric power system of isolated neutral and the ring main unit of internally provided with vacuum breaker.
Background technology
Usually, the mount scheme of traditional ring main unit adopts three-stations load switch and uses air-insulated vacuum circuit-breaker to combine, vacuum circuit-breaker is installed in the cable vault in the ring main unit, and the shortcoming of such installation method is, has taken cable vault's big quantity space at interval.
Summary of the invention
The present invention finishes in view of the above problems, its purpose is to provide a kind of ring main unit of internally provided with vacuum breaker, it can make built-in vacuum circuit-breaker not be subject to the influence of external environment, and can dwindle installation volume, for being installed, other elements save the space, but also precision, rigidity that the position that can improve vacuum circuit-breaker cooperates, thereby improve mechanical efficiency, improve reliability.
The ring main unit of internally provided with vacuum breaker of the present invention comprises: cable vault, bus-bar room, gas tank, spring operating mechanism, vacuum circuit-breaker, wherein, in above-mentioned gas tank, be filled with insulating gas, and the ring main unit of this internally provided with vacuum breaker is characterised in that:
Above-mentioned vacuum circuit-breaker is built in the above-mentioned gas tank.
According to the present invention, wherein, the above-mentioned vacuum interrupter that is built in the vacuum circuit-breaker in the above-mentioned gas tank is three.
According to the present invention, wherein, above-mentioned three vacuum circuit-breakers are fixed in the above-mentioned gas tank side by side.
According to the present invention, wherein, above-mentioned vacuum circuit-breaker with screw in above-mentioned gas tank.
According to the present invention, wherein, above-mentioned vacuum circuit-breaker is fixed in the above-mentioned gas tank that is welded.
According to the present invention, above-mentioned spring operating mechanism is connected with above-mentioned vacuum circuit-breaker, controls this vacuum circuit-breaker closed and disconnected.
According to the present invention, wherein, above-mentioned vacuum circuit-breaker comprises: the vacuum insulation arc extinguishing unit, it constitutes by connecting thin row, upper bracket, upper insulation plate, lower insulation plate and vacuum insulation arc control device, in above-mentioned vacuum insulation arc control device, comprises fixed contact and moving contact, wherein, above-mentioned fixed contact is connected with above-mentioned upper bracket, and the outside of above-mentioned moving contact is connected to bus by connecting line, and drives its motion by insulated tension pole; Single with switch control, it is made of transmission crank arm, touch spring, connecting rod, main shaft connecting lever and transmission main shaft, the upper end of above-mentioned transmission crank arm is connected to above-mentioned insulated tension pole, and the lower end is connected to above-mentioned main shaft connecting lever by above-mentioned connecting rod, and this main shaft connecting lever is connected with above-mentioned transmission main shaft.
According to the present invention, wherein, above-mentioned spring operating mechanism is connected with the above-mentioned transmission main shaft of above-mentioned vacuum circuit-breaker, forms.
The ring main unit of internally provided with vacuum breaker of the present invention, by vacuum circuit-breaker being built in the gas tank as the insulating gas shielded box, compare with the existing ring main unit that vacuum circuit-breaker is built in the cable vault, not only make vacuum circuit-breaker not be subject to the influence of external environment, and the volume of installing is little, for the cable vault of ring main unit has vacateed a large amount of spaces at interval high pressure components and parts such as current transformer, voltage transformer, lightning arrester is installed.And, adopting this mounting means, the precision that the position of vacuum circuit-breaker cooperates, rigidity all greatly improve, and have both improved mechanical efficiency, have improved reliability again.
Description of drawings
Fig. 1 is the sectional view of the structure of expression vacuum circuit-breaker.
Fig. 2 is the sectional view of the part of the ring main unit of expression internally provided with vacuum breaker.
Fig. 3 is the rearview of the part of the ring main unit of expression internally provided with vacuum breaker.
Fig. 4 is the sectional view of the ring main unit of expression internally provided with vacuum breaker.
Fig. 5 is the front view of the ring main unit of expression internally provided with vacuum breaker.
Symbol description:
1 ... spring operating mechanism; 2 ... vacuum circuit-breaker; 3 ... gas tank; 4 ... connect copper bar; 5 ... upper bracket; 6 ... upper insulation plate; 7 ... lower insulation plate; 8 ... vacuum interrupter; 9 ... the breaker body skeleton; 10 ... be flexible coupling; 11 ... insulated tension pole; 12 ... transmission crank arm; 13 ... touch spring; 14 ... connecting rod; 15 ... the main shaft connecting lever; 16 ... transmission main shaft; 17 ... horizontal busbar; 18 ... bus-bar room; 19 ... the control room; 20 ... the main switch chamber; 21 ... the operating mechanism chamber; 22 ... the cable vault; 23 ... following outlet copper bar; 24 ... control room's door; 25 ... Pressure gauge; 26 ... the circuit-breaker status indication; 27 ... the indication of earthed switch state; 28 ... circuit breaker closing by hand button; 29 ... the energy storage indication; 30 ... the indication of on-load switch state; 31 ... circuit breaker manual brake separating button; 32 ... the earthed switch handle hole; 33 ... manually energy storage; 34 ... the isolator operation hole; 35 ... Main Wire Connection Scheme figure; 36 ... operating mechanism chamber panel; 37 ... the Xiamen.
Embodiment
Below, with reference to accompanying drawing, embodiments of the present invention are described.
The ring main unit of internally provided with vacuum breaker of the present invention, comprise cable vault, bus-bar room, gas tank, spring operating mechanism, vacuum circuit-breaker, wherein, be filled with insulating gas in the gas tank, its partial structurtes as shown in Figures 2 and 3, for convenience of explanation, spring operating mechanism 1, vacuum circuit-breaker 2 and as the gas tank 3 of insulating gas shielded box only are shown in the drawings.As shown in Figure 2, vacuum circuit-breaker 2 is built in the gas tank 3, and spring operating mechanism 1 is connected with vacuum circuit-breaker 2, and this vacuum circuit-breaker 2 is controlled.The vacuum circuit-breaker 2 that is built in the gas tank 3 is three, is fixed in the gas tank side by side.Vacuum circuit-breaker 2 can also can be welded in the gas tank 3 by screw in gas tank 3.
Below, with reference to Fig. 1 the structure and the course of work of vacuum circuit-breaker 2 are described in detail.
Vacuum circuit-breaker 2 adopts monolithic construction to be installed in gas tank 3 inside of insulating gas shielded box, and spring operating mechanism 1 can form the control that realizes the closed and disconnected of this vacuum circuit-breaker 2 with vacuum circuit-breaker 2.Thus, can improve the precision and the rigidity of the position cooperation of vacuum circuit-breaker 2, thereby improve mechanical efficiency, increase reliability.
As shown in Figure 1, vacuum circuit-breaker 2 mainly is made of vacuum insulation arc extinguishing unit and switch control unit.In addition, vacuum circuit-breaker 2 is fixed in the gas tank 3 by breaker body skeleton 9.
The vacuum insulation arc extinguishing unit comprises the thin row 4 of connection, upper bracket 5, upper insulation plate 6, lower insulation plate 7 and vacuum insulation arc control device 8.In vacuum insulation arc control device 8, comprise fixed contact and moving contact, wherein, fixed contact is connected with upper bracket 5, and the outside of moving contact is connected to bus by connecting line 10, and drives its motion by insulated tension pole 11.At the combined floodgate that carries out switch with when opening a sluice gate, the moving contacts in the vacuum insulation arc control device 8 are insulated pull bar 11 tractions, make it with the fixed contact contact with separate.In invention was bright, the diameter of the vacuum insulation arc control device 8 that vacuum circuit-breaker 2 adopts was little, vacuum degree is high, dielectric strength is high, therefore had stronger arc extinguishing ability.
The switch control unit of vacuum circuit-breaker 2 comprises transmission crank arm 12, touch spring 13, connecting rod 14, main shaft connecting lever 15 and transmission main shaft 16.The upper end of transmission crank arm 12 is connected to insulated tension pole 11, and the lower end is connected to main shaft connecting lever 15 by connecting rod 14, and this main shaft connecting lever 15 is connected with transmission main shaft 16.In invention is bright, after vacuum circuit-breaker 2 cut-offs rated short circuit drop-out current, still has higher insulation level between the dynamic and static contact in vacuum insulation arc control device 8.
Below, the switch actuating process of vacuum circuit-breaker 2 is described.
At first, the closing operation of vacuum circuit-breaker 2:
In making process, drive transmission main shaft 16 by the spring operating mechanism 1 that is connected with vacuum circuit-breaker 2, transmission main shaft 16 drives 15 rotations of main shaft connecting lever, when rotating to certain angle, drive the transmission crank arm 12 of its connection via connecting rod 14, and and then the moving contacts that promote in the vacuum insulation arc control device 8 by insulated tension pole 11 enter closing position, thereby contact with fixed contact, and compression is connected to the touch spring 13 on the connecting rod 14, the required contact pressure of moving contact in the maintenance vacuum interrupter 8.Thus, making process finishes, and switch is kept closed.
Then, the sub-switching operation of vacuum circuit-breaker 2:
In the separating brake process, to and be connected to touch spring 13 on the connecting rod 14 stored energy in making process with tripping spring in the spring operating mechanism 1 that vacuum circuit-breaker 2 is connected discharges, make transmission main shaft 16 drive 15 reverse rotations of main shaft connecting lever, when rotating to certain angle, drive the transmission crank arm 12 of its connection via connecting rod 14, and and then by the moving contact in the insulated tension pole 11 pulling vacuum insulation arc control device 8, it is separated with fixed contact.Thus, the separating brake process finishes, and switch keeps off-state.The separating brake process is to utilize the exergonic principle that spring is stored to realize that this mode has such advantage, promptly, clearance between open contacts and contacting travel are little, have good break performance, compare with existing equipment, reduced and cut-off failed probability, thereby had more reliability.
The ring main unit of internally provided with vacuum breaker of the present invention, by vacuum circuit-breaker being built in the gas tank as the insulating gas shielded box, compare with the existing ring main unit that vacuum circuit-breaker is built in the cable vault, not only make vacuum circuit-breaker not be subject to the influence of external environment, and the volume of installing is little, for the cable vault of ring main unit has vacateed a large amount of spaces at interval high pressure components and parts such as current transformer, voltage transformer, lightning arrester is installed.And, adopting this mounting means, the precision that the position of vacuum circuit-breaker cooperates, rigidity all greatly improve, and have both improved mechanical efficiency, have improved reliability again.
Claims (8)
1. the ring main unit of an internally provided with vacuum breaker, it comprises: cable vault, bus-bar room, gas tank, spring operating mechanism, vacuum circuit-breaker, wherein, in described gas tank, be filled with insulating gas, the ring main unit of described internally provided with vacuum breaker is characterised in that:
Described vacuum circuit-breaker is built in the described gas tank.
2. the ring main unit of internally provided with vacuum breaker as claimed in claim 1 is characterized in that:
The described vacuum interrupter that is built in the vacuum circuit-breaker in the described gas tank is three.
3. the ring main unit of internally provided with vacuum breaker as claimed in claim 2 is characterized in that:
The vacuum interrupter of described vacuum circuit-breaker is fixed in the described gas tank side by side.
4. the ring main unit of internally provided with vacuum breaker as claimed in claim 2 is characterized in that:
Described vacuum circuit-breaker with screw in described gas tank.
5. the ring main unit of internally provided with vacuum breaker as claimed in claim 2 is characterized in that:
Described vacuum circuit-breaker is fixed in the described gas tank that is welded.
6. the ring main unit of internally provided with vacuum breaker as claimed in claim 2 is characterized in that:
Described spring operating mechanism is connected with described vacuum circuit-breaker, controls this vacuum circuit-breaker closed and disconnected.
7. the ring main unit of internally provided with vacuum breaker as claimed in claim 2 is characterized in that:
Described vacuum circuit-breaker comprises: the vacuum insulation arc extinguishing unit, it constitutes by connecting thin row, upper bracket, upper insulation plate, lower insulation plate and vacuum insulation arc control device, in described vacuum insulation arc control device, comprise fixed contact and moving contact, wherein, described fixed contact is connected with described upper bracket, and the outside of described moving contact is connected to bus by connecting line, and drives its motion by insulated tension pole; Single with switch control, it is made of transmission crank arm, touch spring, connecting rod, main shaft connecting lever and transmission main shaft, the upper end of described transmission crank arm is connected to described insulated tension pole, and the lower end is connected to described main shaft connecting lever by described connecting rod, and this main shaft connecting lever is connected with described transmission main shaft.
8. the ring main unit of internally provided with vacuum breaker as claimed in claim 7 is characterized in that:
Described spring operating mechanism is connected with the described transmission main shaft of described vacuum circuit-breaker, forms.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010195751 CN101847840A (en) | 2010-06-09 | 2010-06-09 | Annular net cabinet internally provided with vacuum breaker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010195751 CN101847840A (en) | 2010-06-09 | 2010-06-09 | Annular net cabinet internally provided with vacuum breaker |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101847840A true CN101847840A (en) | 2010-09-29 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201010195751 Pending CN101847840A (en) | 2010-06-09 | 2010-06-09 | Annular net cabinet internally provided with vacuum breaker |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101847840A (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103681093A (en) * | 2013-12-03 | 2014-03-26 | 沈阳昊诚电气股份有限公司 | Outdoor solid insulation switch |
| CN105514855A (en) * | 2015-12-31 | 2016-04-20 | 北京合锐赛尔电力科技股份有限公司 | Air insulation ring main unit |
| CN106710959A (en) * | 2017-02-10 | 2017-05-24 | 平高集团有限公司 | Circuit breaker and main shaft transmission structure thereof |
| CN107993879A (en) * | 2017-12-22 | 2018-05-04 | 上海攀森电气设备有限公司 | A kind of three station protected type solid insulation vacuum switch module of disconnecting link formula |
| CN109687338A (en) * | 2019-03-07 | 2019-04-26 | 广西银河迪康电气有限公司 | High current inflatable high-voltage switchgear |
| CN111404070A (en) * | 2020-04-27 | 2020-07-10 | 库柏爱迪生(平顶山)电子科技有限公司 | An environmentally friendly gas ring network cabinet |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2717000Y (en) * | 2004-07-14 | 2005-08-10 | 赵学文 | Centrally positioned vacuum circuit breaker |
| CN2836279Y (en) * | 2005-07-14 | 2006-11-08 | 杭州电器开关有限公司 | 12KV indoor AC high-voltage sulfur hexafluoride ring network switchgear |
| CN201113292Y (en) * | 2007-08-21 | 2008-09-10 | 北京合纵科技股份有限公司 | Gas insulation vacuum ring net switch cabinet |
| CN201160052Y (en) * | 2008-01-10 | 2008-12-03 | 北京科力恒久电力技术有限责任公司 | Novel circuit breaker for inflating cabinet of 10kV |
| CN201199609Y (en) * | 2008-01-21 | 2009-02-25 | 佛山市华南开关有限公司 | Novel AC metal closed switch installation |
| CN201413948Y (en) * | 2009-04-17 | 2010-02-24 | 珠海许继电气有限公司 | Ring-net vacuum automatic power distribution switching equipment |
-
2010
- 2010-06-09 CN CN 201010195751 patent/CN101847840A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2717000Y (en) * | 2004-07-14 | 2005-08-10 | 赵学文 | Centrally positioned vacuum circuit breaker |
| CN2836279Y (en) * | 2005-07-14 | 2006-11-08 | 杭州电器开关有限公司 | 12KV indoor AC high-voltage sulfur hexafluoride ring network switchgear |
| CN201113292Y (en) * | 2007-08-21 | 2008-09-10 | 北京合纵科技股份有限公司 | Gas insulation vacuum ring net switch cabinet |
| CN201160052Y (en) * | 2008-01-10 | 2008-12-03 | 北京科力恒久电力技术有限责任公司 | Novel circuit breaker for inflating cabinet of 10kV |
| CN201199609Y (en) * | 2008-01-21 | 2009-02-25 | 佛山市华南开关有限公司 | Novel AC metal closed switch installation |
| CN201413948Y (en) * | 2009-04-17 | 2010-02-24 | 珠海许继电气有限公司 | Ring-net vacuum automatic power distribution switching equipment |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103681093A (en) * | 2013-12-03 | 2014-03-26 | 沈阳昊诚电气股份有限公司 | Outdoor solid insulation switch |
| CN105514855A (en) * | 2015-12-31 | 2016-04-20 | 北京合锐赛尔电力科技股份有限公司 | Air insulation ring main unit |
| CN106710959A (en) * | 2017-02-10 | 2017-05-24 | 平高集团有限公司 | Circuit breaker and main shaft transmission structure thereof |
| CN106710959B (en) * | 2017-02-10 | 2019-07-19 | 平高集团有限公司 | A circuit breaker and its main shaft transmission structure |
| CN107993879A (en) * | 2017-12-22 | 2018-05-04 | 上海攀森电气设备有限公司 | A kind of three station protected type solid insulation vacuum switch module of disconnecting link formula |
| CN109687338A (en) * | 2019-03-07 | 2019-04-26 | 广西银河迪康电气有限公司 | High current inflatable high-voltage switchgear |
| CN109687338B (en) * | 2019-03-07 | 2024-01-30 | 广西银河迪康电气有限公司 | Heavy-current inflatable high-voltage switch cabinet |
| CN111404070A (en) * | 2020-04-27 | 2020-07-10 | 库柏爱迪生(平顶山)电子科技有限公司 | An environmentally friendly gas ring network cabinet |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
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| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Open date: 20100929 |