CN205304073U - Nitrous switch cabinet of isolator and vacuum interrupter linkage - Google Patents
Nitrous switch cabinet of isolator and vacuum interrupter linkage Download PDFInfo
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- CN205304073U CN205304073U CN201521100889.7U CN201521100889U CN205304073U CN 205304073 U CN205304073 U CN 205304073U CN 201521100889 U CN201521100889 U CN 201521100889U CN 205304073 U CN205304073 U CN 205304073U
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- isolation
- switch
- vacuum interrupter
- moving contact
- push rod
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Abstract
The utility model relates to a nitrous switch cabinet of isolator and vacuum interrupter linkage belongs to electrical switchgear's technical field. The nitrous switch cabinet includes: operating mechanism component, by operating mechanism component driven three -phase isolation switch subassembly, with the three -phase be qualified for the next round of competitions cable junction three vacuum interrupter, be connected the linkage mechanism component of three -phase isolation switch subassembly and three vacuum interrupter switch, every looks isolating switch component and a vacuum interrupter install an insulating part the inside, three insulating part is installed at the cabinet internally through fixing at the internal installation roof beam of cabinet. The utility model discloses a with the linkage mechanism component of the coaxial motion of circuit breaker main shaft, break off earlier vacuum interrupter when closed isolating switch component reclosing vacuum interrupter and separating brake earlier when realize closing a floodgate and break off isolator again, isolator uses with vacuum interrupter's cooperation and has strengthened the arc extinguishing ability, has compensatied nitrogen gas and has compared not enough in the aspect of the insulating and arc extinguishing performance of SF6.
Description
Technical field
This utility model relates to isolation switch and the nitrogen switch cubicle of vacuum interrupter linkage, belongs to the technical field of cabinet.
Background technology
Nitrogen cabinet is the gas-filling cabinet that a kind of shell is filled with lower pressure (0.1��0.5mpa) nitrogen. Owing to SF6 gas is decided to be restricted greenhouse gases, thus control its consumption and discharge at High-voltage Switchgear Industry as far as possible. So being badly in need of a kind of non-SF6 gas inflated cabinet. Nitrogen is purer compared to dry air, nitrogen environmental protection simultaneously, but nitrogen is not as SF6 gas and has excellent arc extinguishing and insulating properties like that, so being mounted with vacuum interrupter and isolation switch in nitrogen cabinet. The urgently nitrogen switch cubicle of a kind of reinforced insulation and arc extinction performance.
Utility model content
Technical problem to be solved in the utility model is the deficiency for above-mentioned background technology, provide the nitrogen switch cubicle of isolation switch and vacuum interrupter linkage, by isolate switch and vacuum interrupter with the use of compensate for nitrogen compared to SF6 insulation and the deficiency of arc extinction performance aspect, solve the insulation of nitrogen in prior art and the arc extinction performance technical problem not as good as SF6 aspect.
This utility model, for solving above-mentioned technical problem, adopts the following technical scheme that
The nitrogen switch cubicle that isolation switch links with vacuum interrupter, including: the link gear assembly of operating mechanism assembly, the three-phase isolation switch assembly of operating mechanism Component driver three vacuum interrupters being connected with three-phase outlet cable, connection three-phase isolation switch assembly and three vacuum interrupter switches, every isolated switch module and a vacuum interrupter are arranged on inside an insulating part, and three insulating parts are arranged in cabinet by the mounting rail being fixed in cabinet;
During closing operation: link gear assembly first drives switch component to close a floodgate and drives vacuum interrupter switch rotation Guan Bi vacuum interrupter again,
During sub-switching operation: link gear assembly first drives vacuum interrupter switch to rotate shutoff vacuum interrupter and drives switch component separating brake again.
Further, described isolation switch is with the nitrogen switch cubicle of vacuum interrupter linkage, and link gear assembly includes: isolation main shaft, splined shaft, clutch, clutch cover, three insulation connecting lever, fork, two connecting levers, long connecting rods,
Isolation main shaft is mechanically connected with operating mechanism assembly, splined shaft is arranged in cabinet by mounting rail, clutch and clutch cover are socketed in isolation main shaft central authorities side by side and leave therebetween one section of idle running, three insulation connecting levers are all socketed on isolation main shaft, three insulation connecting lever other end three-phase isolation switch assemblies respectively are mechanically connected, two connecting levers are socketed in splined shaft central authorities, fork one end is hinged with clutch cover, the movable end of the fork other end and a connecting lever is hinged, one end of long connecting rod is hinged with the movable end of another connecting lever, the long connecting rod other end is hinged with the movable end of vacuum interrupter switch.
Further, described isolation switch is with the nitrogen switch cubicle of vacuum interrupter linkage, and switch component includes: isolates static contact, isolate moving contact, be enclosed within the protective cover outside dynamic/static contact contact area, ball,
Isolation moving contact includes: isolation moving contact push rod, isolation moving contact pipe, isolation moving contact push rod, isolation moving contact pushing rod sleeve is connected on outside isolation moving contact push rod, isolation moving contact pipe box is connected on outside isolation moving contact push rod, isolation moving contact push rod is fixing with insulation connecting lever to be connected, have, between isolation moving contact push rod and isolation moving contact pipe, the track rolled for ball, isolation moving contact inside pipe wall is fixed with isolation moving contact ring, it is fixed with built-in stage clip between isolation moving contact ring and isolation moving contact push rod, isolation moving contact pipe is linked by built-in stage clip with isolation moving contact push rod.
Further, described isolation switch is with the nitrogen switch cubicle of vacuum interrupter linkage, and isolation moving contact is Mume flower contact.
Further prioritization scheme as described isolation switch with the nitrogen switch cubicle of vacuum interrupter linkage, nitrogen switch cubicle also includes three-phase ground switch module, every phase ground connection switch module all includes: the earthing assembly being socketed on ground connection main shaft and grounding copper bar and earthing, and earthing assembly is connected with earthing by grounding copper bar.
This utility model adopts technique scheme, have the advantages that the nitrogen switch cubicle providing isolation switch with vacuum interrupter linkage, by the link gear assembly with breaker main shaft moved in coaxial, realize close a floodgate time first close first disconnect when switch component closes vacuum interrupter and separating brake again vacuum interrupter again disconnect isolation switch, isolation switch and vacuum interrupter with the use of enhancing arc extinguishing ability, compensate for nitrogen compared to SF6 insulation and the deficiency of arc extinction performance aspect; Isolation switch movable contact adopts Direct Action Type Mume flower contact, has good dynamic and thermal stability performance; The nitrogen switch cubicle that this utility model relates to improves the reliability of electric power system.
Accompanying drawing explanation
The general illustration of nitrogen switch cubicle and front view in Fig. 1 (a), Fig. 1 (b) respectively this utility model.
The side view of Fig. 2 (a), Fig. 2 (b) respectively nitrogen switch cubicle and profile.
Fig. 3 (a), Fig. 3 (b) respectively isolate front view and the side view of nitrogen switch cubicle under switch and all not closed state of vacuum interrupter.
Fig. 4 (a), Fig. 4 (b) respectively keep apart and close Guan Bi but the front view of nitrogen switch cubicle and side view under the not closed state of vacuum interrupter.
Fig. 5 (a), Fig. 5 (b) respectively isolate front view and the side view of nitrogen switch cubicle under switch and the equal closure state of vacuum interrupter.
Number in the figure illustrates: 1, operating mechanism assembly, 2, breaker main shaft, 3, dynamic coordinate; 4, mounting rail, 5, isolation main shaft, 6, splined shaft; 7, ground connection main shaft; 8, insulated tension pole, 9, vacuum interrupter switch, 10, insulation connecting lever; 11, clutch cover; 12, connecting lever, 13, long connecting rod, 14, fork; 15, isolation static contact; 16, protective cover, 17, isolation moving contact push rod, 18, isolation moving contact pipe; 19, isolation moving contact push rod; 20, ball, 21, isolation static contact parts, 22, clutch.
Detailed description of the invention
Below in conjunction with accompanying drawing, the technical solution of the utility model is described in detail.
It is a kind of linkage isolating switch and vacuum interrupter that this utility model solves the technical scheme of key technical problem. This nitrogen cabinet is such as shown in Fig. 1 (a), it is made up of operating mechanism assembly, link gear assembly, three vacuum interrupters, three-phase isolation switch assemblies, every isolated switch module and a vacuum interrupter are arranged on inside an insulating part, and three insulating parts are arranged in cabinet by the mounting rail 4 being fixed in cabinet. Nitrogen switch cubicle also includes three-phase ground switch module, and every phase ground connection switch module all includes: the earthing assembly being socketed on ground connection main shaft and grounding copper bar and earthing, and earthing assembly is connected with earthing by grounding copper bar.
Link gear assembly is such as shown in Fig. 1 (b), Fig. 2 (a), including: isolation main shaft 5, splined shaft 6, clutch 22, clutch cover 11, three insulation connecting lever 10, fork 14, two connecting levers 12, long connecting rods 13. isolation main shaft 5 is mechanically connected with operating mechanism assembly 1, splined shaft 6 is arranged in cabinet by mounting rail 4, clutch 22 and clutch cover 11 are socketed in isolation main shaft 5 central authorities side by side and leave therebetween one section of idle running, three insulation connecting levers 10 are all socketed on isolation main shaft 5, three insulation connecting lever 10 other end three-phase isolation switch assemblies respectively are mechanically connected, two connecting levers 12 are socketed in splined shaft 6 central authorities, fork 14 one end is hinged with clutch cover 11, the movable end of fork 14 other end and a connecting lever 12 is hinged, one end of long connecting rod 13 is hinged with the movable end of another connecting lever 12, long connecting rod 13 other end is hinged with the movable end of vacuum interrupter switch 9.
Switch component is such as shown in Fig. 2 (b), including: isolation static contact 15, isolation static contact parts 21, isolate moving contact, be enclosed within the protective cover 16 outside dynamic/static contact contact area. isolation moving contact includes: isolation moving contact push rod 17, isolation moving contact pipe 18, isolation moving contact push rod 19, isolation moving contact push rod 19 is socketed in outside isolation moving contact push rod 17, isolation moving contact pipe 18 is socketed in outside isolation moving contact push rod 19, isolation moving contact push rod 19 is fixing with insulation connecting lever 10 to be connected, the track of the rolling for ball is had between isolation moving contact push rod 19 and isolation moving contact pipe 18, isolation moving contact pipe 18 inwall is fixed with isolation moving contact ring, it is fixed with built-in stage clip between isolation moving contact ring and isolation moving contact push rod 17, isolation moving contact pipe 18 is linked by built-in stage clip with isolation moving contact push rod 17.
Operating mechanism assembly 1 coordinates 3 control breaker main shafts 2 to rotate by dynamic, and isolation main shaft 5 is connected with operating mechanism assembly 1 and is controlled by operating mechanism assembly 1, and the insulation connecting lever being connected with isolation moving contact component controls disconnection and the Guan Bi of isolation moving contact.Isolation main shaft 5, splined shaft 6, ground connection main shaft 7 three axle interlocking, isolation main shaft 5 passes sequentially through clutch 22, clutch cover 11, fork 14, screw, connecting lever 12, long connecting rod 13 and splined shaft 6 and realizes linkage.
The nitrogen switch cubicle that this utility model relates to is made up of a set of operating mechanism assembly, link gear assembly, three groups of vacuum interrupters and three groups of switch components. During normal operation, be operated by mechanism assembly realize three groups of switch components and three groups of vacuum interrupters from all off to keep apart close Guan Bi, vacuum interrupter is disconnected to both Guan Bis and realizes keeping apart the function closing Guan Bi. Fig. 3 (a), Fig. 3 (b) are front view and the side view of nitrogen switch cubicle under isolation switch and all not closed state of vacuum interrupter.
Operating mechanism assembly 1 driving isolation main shaft 5 rotates, thus driving three the insulation connecting levers 10 being socketed on isolation main shaft 5 and clutch 22 to rotate, insulation connecting lever 10 is connected with isolation moving contact push rod 19, thus driving isolation moving contact push rod 19 to move upward, owing to the effect of ball 20 drives isolation moving contact pipe 18 to move upward, then it is further driven to isolation moving contact push rod 17 move upward due to the built-in stage clip in the inside, three together moves upward, now clutch 22 starts to rotate idle running, until isolation moving contact push rod 17 bumps against with isolation static contact 15, isolation moving contact push rod 17 stop motion, then keep apart pass Guan Bi, clutch 22 idle running has turned, such as Fig. 4 (a), shown in Fig. 4 (b). isolation main shaft 5 is rotated further, insulation connecting lever 10 continues to drive isolation moving contact push rod 19 to move upward, effect due to ball 20, isolation moving contact pipe 18 also stop motion, now clutch 22 drives clutch cover 11 to rotate, and drives splined shaft 6 to rotate by fork 14, connecting lever 12, drives vacuum interrupter switch 9 to rotate up to be connected with insulated tension pole 8 again through long connecting rod 13, vacuum interrupter realizes Guan Bi, as shown in Fig. 5 (a), Fig. 5 (b). the process realizing isolation presents three kinds of states successively, and isolation is closed and vacuum interrupter all disconnects, keep apart pass Guan Bi vacuum interrupter still disconnects, isolation switch and vacuum interrupter all close.
In sum, this utility model provides the nitrogen switch cubicle of isolation switch and vacuum interrupter linkage, by the link gear assembly with breaker main shaft moved in coaxial, realize close a floodgate time first close first disconnect when switch component closes vacuum interrupter and separating brake again vacuum interrupter again disconnect isolation switch, isolation switch and vacuum interrupter with the use of enhancing arc extinguishing ability, compensate for nitrogen compared to SF6 insulation and the deficiency of arc extinction performance aspect; Isolation switch movable contact adopts Direct Action Type Mume flower contact, has good dynamic and thermal stability performance; The nitrogen switch cubicle that this utility model relates to improves the reliability of electric power system.
Claims (5)
1. the nitrogen switch cubicle that isolation switch links with vacuum interrupter, it is characterized in that, including: the link gear assembly of operating mechanism assembly, the three-phase isolation switch assembly of operating mechanism Component driver three vacuum interrupters being connected with three-phase outlet cable, connection three-phase isolation switch assembly and three vacuum interrupter switches, every isolated switch module and a vacuum interrupter are arranged on inside an insulating part, and three insulating parts are arranged in cabinet by the mounting rail being fixed in cabinet;
During closing operation: link gear assembly first drives switch component to close a floodgate and drives vacuum interrupter switch rotation Guan Bi vacuum interrupter again,
During sub-switching operation: link gear assembly first drives vacuum interrupter switch to rotate shutoff vacuum interrupter and drives switch component separating brake again.
2. the nitrogen switch cubicle that isolation switch links with vacuum interrupter according to claim 1, it is characterized in that, described link gear assembly includes: isolation main shaft (5), splined shaft (6), clutch (22), clutch cover (11), three insulation connecting lever (10), fork (14), two connecting levers (12), long connecting rods (13)
Isolation main shaft (5) is mechanically connected with operating mechanism assembly, splined shaft (6) is arranged in cabinet by mounting rail (4), clutch (22) and clutch cover (11) are socketed in isolation main shaft (5) central authorities side by side and leave therebetween one section of idle running, three insulation connecting lever (10) are all socketed in isolation main shaft (5), three insulation connecting lever (10) other end three-phase isolation switch assemblies respectively are mechanically connected, two connecting levers (12) are socketed in splined shaft (6) central authorities, fork (14) one end is hinged with clutch cover (11), the movable end of fork (14) other end and a connecting lever (12) is hinged, one end of long connecting rod (13) is hinged with the movable end of another connecting lever (12), long connecting rod (13) other end is hinged with the movable end of vacuum interrupter switch (9).
3. the nitrogen switch cubicle that isolation switch according to claim 1 or claim 2 links with vacuum interrupter; it is characterized in that; described switch component includes: isolates static contact (15), isolate moving contact, be enclosed within the protective cover (16) outside dynamic/static contact contact area, ball (20)
Isolation moving contact includes: isolation moving contact push rod (17), isolation moving contact pipe (18), isolation moving contact push rod (19), isolation moving contact push rod (19) is socketed in isolation moving contact push rod (17) outward, isolation moving contact pipe (18) is socketed in isolation moving contact push rod (19) outward, isolation moving contact push rod (19) is fixing with insulation connecting lever (10) to be connected, the track rolled for ball (20) is had between isolation moving contact push rod (19) and isolation moving contact pipe (18), isolation moving contact pipe (18) inwall is fixed with isolation moving contact ring, it is fixed with built-in stage clip between isolation moving contact ring and isolation moving contact push rod (17), isolation moving contact pipe (18) is linked by built-in stage clip with isolation moving contact push rod (17).
4. the nitrogen switch cubicle that isolation switch links with vacuum interrupter according to claim 3, it is characterised in that described isolation moving contact is Mume flower contact.
5. the nitrogen switch cubicle that isolation switch links with vacuum interrupter according to claim 1, it is characterized in that, described nitrogen switch cubicle also includes three-phase ground switch module, every phase ground connection switch module all includes: the earthing assembly being socketed on ground connection main shaft and grounding copper bar and earthing, and earthing assembly is connected with earthing by grounding copper bar.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521100889.7U CN205304073U (en) | 2015-12-25 | 2015-12-25 | Nitrous switch cabinet of isolator and vacuum interrupter linkage |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521100889.7U CN205304073U (en) | 2015-12-25 | 2015-12-25 | Nitrous switch cabinet of isolator and vacuum interrupter linkage |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205304073U true CN205304073U (en) | 2016-06-08 |
Family
ID=56473674
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201521100889.7U Active CN205304073U (en) | 2015-12-25 | 2015-12-25 | Nitrous switch cabinet of isolator and vacuum interrupter linkage |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205304073U (en) |
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2015
- 2015-12-25 CN CN201521100889.7U patent/CN205304073U/en active Active
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|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |