CN202906280U - Nitrogen insulating ring main unit - Google Patents
Nitrogen insulating ring main unit Download PDFInfo
- Publication number
- CN202906280U CN202906280U CN 201220162384 CN201220162384U CN202906280U CN 202906280 U CN202906280 U CN 202906280U CN 201220162384 CN201220162384 CN 201220162384 CN 201220162384 U CN201220162384 U CN 201220162384U CN 202906280 U CN202906280 U CN 202906280U
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- CN
- China
- Prior art keywords
- vacuum circuit
- main shaft
- switch
- enclosed housing
- circuit breaker
- 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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- Gas-Insulated Switchgears (AREA)
Abstract
The utility model relates to a nitrogen insulating ring main unit, comprising an enclosed box, static contacts of isolation switches, main buses, bus couplers, static contacts of vacuum circuit breakers, an outlet copper conductor, cable outlet cannulas, an insulating main shaft of the isolation switches, knife switches of the isolation switches and moving contacts of the vacuum circuit breakers. The bus couplers are arranged on the enclosed box; one end of each main bus is connected with one bus coupler; and the upper end of each moving contact of the isolation switch is connected with the other end of the main bus; the lower end of each static contact of the isolation switch is electrically connected with one moving contact of the vacuum circuit breaker; the main shaft of the isolation switches is arranged on the enclosed box, and the knife switches of the isolation switches are arranged on the main shaft; the main shaft of the isolation switches is rotated, so that the knife switches of the isolation switches can push the moving contacts of the vacuum circuit breakers to move up and down, thereby realizing connection and disconnection between the moving and static contacts of the vacuum circuit breakers; the lower end of each static contact of the vacuum circuit breaker is connected with the outlet copper conductor; and the enclosed box is full of nitrogen. According to the utility model, the scheme is stable in performance, and the environment is protected.
Description
Technical field
The utility model relates to a kind of nitrogen gas insulating 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 gas insulating ring main unit of protective gas, belong to the switchgear technical field.
Background technology
Vacuum interrupter in the ring main unit bears higher voltage withstand class, so that the vacuum extinction chamber size is larger, finally causes the vacuum circuit-breaker size very large.
Use 2 operating mechanisms to control respectively vacuum circuit-breaker and isolating switch, and between two operating mechanisms, to add mechanical interlocking device, so that the reliability of prior art is low, cost is high and cause equipment volume to increase, strengthen so that form the requisite space of complete set of equipments; Simultaneously because operating personnel's misoperation often can produce misoperation.
Two sections property structures of prior art increased the quantity of electric conductor parts and interconnect between faying surface quantity, the many costs of consumptive material are high, 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.
The utility model content
Action, the compact conformation that the purpose of this utility model is to provide operating mechanism of a kind of need can control isolating switch and vacuum circuit-breaker, utilize nitrogen as the nitrogen gas insulating ring main unit of protective gas.
The utility model is achieved through the following technical solutions: a kind of nitrogen gas insulating ring main unit comprises that enclosed housing, static contact isolation switch, main bus bar, mother device, static contact of vacuum circuit breaker, outlet copper are led, cable outlet sleeve pipe, isolation switch insulation main shaft, isolating switch disconnecting link, movable contact of vacuum circuit breaker; Described mother device is arranged on the enclosed housing; One end of described main bus bar links to each other with the mother device; 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 movable contact of vacuum circuit breaker; 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 spindle, described isolating switch disconnecting link can promote movable contact of vacuum circuit breaker and move up and down, to realize combined floodgate or the disjunction of movable contact of vacuum circuit breaker and static contact of vacuum circuit breaker; The lower end of described static contact of vacuum circuit breaker 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 gas insulating ring main unit also comprises grounding switch main shaft, earthed switch disconnecting link, ground connection soft copper band; One end of described ground connection soft copper band connects grounding 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 grounding switch main shaft, when rotation can make during grounding switch main shaft earthed switch disconnecting link and outlet copper conduct electricity to be connected or disconnects.
Preferably, be provided with the nitrogen fill valve door on the described enclosed housing, to make things convenient for to the nitrogen of annotating in the enclosed housing.
Preferably, the bottom of described enclosed housing is provided with rupture pressure disc.
Preferably, described enclosed housing is to be made by metal material.
The beneficial effects of the utility model are embodied in: nitrogen gas insulating ring main unit described in the utility model, isolating switch disconnecting link directly contact with the moving contact of vacuum circuit-breaker and also can promote implementation that movable contact of vacuum circuit breaker contacts with static contact of vacuum circuit breaker so that whole compact equipment; The move up and down closed conducting that realizes isolating switch and the closed conducting of vacuum interrupter of the direct driving isolation switch tool of isolation switch insulation main shaft sequentially carried out, and do not have the possibility of any misoperation; The utility model scheme directly with an operating mechanism can realize isolating, the function of combined floodgate, separating brake; The integrated design of the isolating switch of the utility model scheme and vacuum circuit-breaker so that the withstand voltage that originally needs to be born by the vacuum interrupter in the vacuum circuit-breaker by isolating switch and vacuum circuit-breaker shared, the insulating requirements of vacuum interrupter reduces greatly, so that the vacuum circuit-breaker compact dimensions, cost reduction; Greatly reduced simultaneously quantity and the faying surface of conductor, so that contact resistance reduces, whole switchgear caloric value reduces, and equipment dependability increases; Adopt in addition nitrogen as dielectric, protection atmosphere environment.
Description of drawings
Below in conjunction with accompanying drawing technical solutions of the utility model are described further:
Fig. 1 is the cutaway view of nitrogen gas insulating ring main unit described in the utility model;
Wherein: 1, enclosed housing; 2, static contact isolation switch; 3, main bus bar; 4, mother device; 5, static contact of vacuum circuit breaker; 6, outlet copper is led; 7, cable outlet sleeve pipe; 8, the first operating mechanism; 9, isolation switch insulation main shaft; 10, isolating switch disconnecting link; 11, movable contact of vacuum circuit breaker; 12, second operation machine structure; 13, grounding 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 utility model is described.
Be a kind of nitrogen gas insulating ring main unit of the present utility model as shown in Figure 1, comprise that enclosed housing 1, static contact isolation switch 2, main bus bar 3, mother device 4, static contact of vacuum circuit breaker 5, outlet copper lead 6, cable outlet sleeve pipe 7, isolation switch insulation main shaft 9, isolating switch disconnecting link 10, movable contact of vacuum circuit breaker 11, grounding switch main shaft 13, earthed switch disconnecting link 14, ground connection soft copper band 15; Described mother device 4 is arranged on the enclosed housing 1; One end of described main bus bar 3 links to each other with mother device 4; 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 movable contact of vacuum circuit breaker 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; The first operating mechanism 8 rotary isolation switch insulation spindles 9, described isolating switch disconnecting link 10 can promote movable contact of vacuum circuit breaker 11 and move up and down, to realize combined floodgate or the disjunction of movable contact of vacuum circuit breaker 11 and static contact of vacuum circuit breaker 5; The lower end of described static contact of vacuum circuit breaker 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 grounding 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 grounding switch main shaft 13, can make earthed switch disconnecting link 14 and outlet copper lead 6 when second operation machine structure 12 rotation grounding switch main shaft 13 and be electrically connected or disconnect; Be provided with nitrogen fill valve door 17 on the described enclosed housing 1, to make things convenient for to enclosed housing 1 interior filling nitrogen 16; 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 function of the utility model scheme realizes:
1, the connection of parts: static contact isolation switch connects with the mother device by main bus bar; Static contact of vacuum circuit breaker 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 grounding switch main shaft, and ground connection soft copper band connects with the shell of metal cabinet;
2, combined floodgate and disjunction: the first operating mechanism rotarily drives the rotation of isolation switch insulation main shaft, the isolation switch insulation main shaft drives the isolating switch disconnecting link, closing minute of the moving movable contact of vacuum circuit breaker of the isolation switch blade strap of the brake and static contact of vacuum circuit breaker, combined floodgate and the disjunction of realization this programme;
3, ground connection: under the disjunction state, the second operation machine structure drives that grounding switch main shaft rotates so that earthed switch disconnecting link and outlet copper connect logically, so that cable socket and ground connection, this programme enters into ground state.
The beneficial effects of the utility model are embodied in: nitrogen gas insulating ring main unit described in the utility model, isolating switch disconnecting link directly contact with the moving contact of vacuum circuit-breaker and also can promote implementation that movable contact of vacuum circuit breaker contacts with static contact of vacuum circuit breaker so that whole compact equipment; The move up and down closed conducting that realizes isolating switch and the closed conducting of vacuum interrupter of the direct driving isolation switch tool of isolation switch insulation main shaft sequentially carried out, and do not have the possibility of any misoperation; The utility model scheme directly with an operating mechanism can realize isolating, the function of combined floodgate, separating brake; The integrated design of the isolating switch of the utility model scheme and vacuum circuit-breaker so that the withstand voltage that originally needs to be born by the vacuum interrupter in the vacuum circuit-breaker by isolating switch and vacuum circuit-breaker shared, the insulating requirements of vacuum interrupter reduces greatly, so that the vacuum circuit-breaker compact dimensions, cost reduction; Greatly reduced simultaneously quantity and the faying surface of conductor, so that contact resistance reduces, whole switchgear caloric value reduces, and equipment dependability increases; Adopt in addition nitrogen as dielectric, protection atmosphere environment.
Below only be concrete exemplary applications of the present utility model, protection range of the present utility model is not constituted any limitation.All employing equivalents or equivalence are replaced and the technical scheme of formation, all drop within the utility model rights protection scope.
Claims (5)
1. nitrogen gas insulating ring main unit comprises that enclosed housing, static contact isolation switch, main bus bar, mother device, static contact of vacuum circuit breaker, outlet copper are led, cable outlet sleeve pipe, isolation switch insulation main shaft, isolating switch disconnecting link, movable contact of vacuum circuit breaker; Described mother device is arranged on the enclosed housing; One end of described main bus bar links to each other with the mother device; 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 movable contact of vacuum circuit breaker; 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 spindle, described isolating switch disconnecting link can promote movable contact of vacuum circuit breaker and move up and down, to realize combined floodgate or the disjunction of movable contact of vacuum circuit breaker and static contact of vacuum circuit breaker; The lower end of described static contact of vacuum circuit breaker 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 gas insulating ring main unit according to claim 1 is characterized in that: also comprise grounding switch main shaft, earthed switch disconnecting link, ground connection soft copper band; One end of described ground connection soft copper band connects grounding 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 grounding switch main shaft, when rotation can make during grounding switch main shaft earthed switch disconnecting link and outlet copper conduct electricity to be connected or disconnects.
3. nitrogen gas insulating ring main unit according to claim 1 is characterized in that: be provided with the nitrogen fill valve door on the described enclosed housing, to make things convenient for to the nitrogen of annotating in the enclosed housing.
4. nitrogen gas insulating ring main unit according to claim 1, it is characterized in that: the bottom of described enclosed housing is provided with rupture pressure disc.
5. nitrogen gas insulating ring main unit according to claim 1, 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 |
|---|---|---|---|
| CN 201220162384 CN202906280U (en) | 2012-04-17 | 2012-04-17 | Nitrogen insulating ring main unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220162384 CN202906280U (en) | 2012-04-17 | 2012-04-17 | Nitrogen insulating ring main unit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202906280U true CN202906280U (en) | 2013-04-24 |
Family
ID=48126905
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220162384 Expired - Fee Related CN202906280U (en) | 2012-04-17 | 2012-04-17 | Nitrogen insulating ring main unit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202906280U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103199453A (en) * | 2012-04-17 | 2013-07-10 | 苏州朗格电气有限公司 | Nitrogen insulation ring main unit |
-
2012
- 2012-04-17 CN CN 201220162384 patent/CN202906280U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103199453A (en) * | 2012-04-17 | 2013-07-10 | 苏州朗格电气有限公司 | Nitrogen insulation ring main unit |
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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: 20130424 Termination date: 20200417 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |