CN202230967U - Combined electric device of indoor high-voltage vacuum circuit breaker and isolating and grounding switch - Google Patents
Combined electric device of indoor high-voltage vacuum circuit breaker and isolating and grounding switch Download PDFInfo
- Publication number
- CN202230967U CN202230967U CN2011204167778U CN201120416777U CN202230967U CN 202230967 U CN202230967 U CN 202230967U CN 2011204167778 U CN2011204167778 U CN 2011204167778U CN 201120416777 U CN201120416777 U CN 201120416777U CN 202230967 U CN202230967 U CN 202230967U
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- China
- Prior art keywords
- vacuum circuit
- circuit breaker
- earthed switch
- isolation
- indoor high
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Abstract
The utility model relates to a high-voltage electric device, in particular to a combined electric device with an integrated structure for an indoor high-voltage vacuum circuit breaker and an isolating/grounding switch. The circuit breaker is an epoxy resin solid-sealed vacuum circuit breaker, is arranged in a lateral installation manner and is fixedly installed, the three-workstation isolating and grounding switch is of a rotary structure, a switch blade seat of a moving switch blade of the three-workstation isolating and grounding switch is directly fixed on an upper connecting terminal of the vacuum circuit breaker, and the moving switch blade rotates under the driving of an operating mechanism through an insulating framework to complete three-workstation operation of isolating, connecting and grounding; a plurality of pairs of contact plates of a moving contact of the three-workstation isolating and grounding switch are in duckbilled shapes, are of spherical contact structures, and can appropriately swing on the moving switch blade, so that electric conduction reliability among the contact plates, a branch bus and a grounding fixed contact is ensured; and the operating mechanism is electric-driven and also can operate by manual. The combined electric device has the advantages of novel design, compact structure, small volume, short electric conduction loop, few connecting points, low manufacturing cost, high running reliability and the like.
Description
Technical field
The present invention relates to the combined electrical apparatus of a kind of High-Voltage Electrical Appliances, particularly indoor high-voltage vacuum circuit breaker, isolation and earthed switch.The invention belongs to 3.6～40.5kV High-Voltage Electrical Appliances field.
Background technology
Public switch elements such as indoor high-voltage vacuum circuit breaker, indoor high-voltage isolating switch and indoor hv earthing switch are the main electric elements in the ac metal closing switch gear (high-tension switch cabinet) at present.They not only all are the products of function singleness property, and mostly its overall structure is that the formal dress formula arranges that promptly the arranged direction of three-phase galvanic circle becomes parallel relation with the front of ac metal closing switch gear.When installation and operation; Not only to take very big space; Also want the copper conductor of labor to be electrically connected, problems such as cause that the ac metal closing switch gear volume is big, the galvanic circle is long, tie point is many, energy resource consumption is big, manufacturing cost is high and operational reliability is low.And for safeguarding and overhauling, mostly high-pressure vacuum breaker is to have the extensible formula of conducting heavy current plug and chassis, complex structure.But the design and the manufacture level of vacuum circuit-breaker and operating mechanism thereof improve greatly at present, have realized few maintenance, for extensible many parts that are provided with and device have become the source that has an accident on the contrary.Even if existing now a spot of isolation and earthed switch combination product are using, but its operating mechanism all is not electronic, can not satisfy the requirement that intelligent electrical network telemechanical is controlled.
Summary of the invention
For overcoming many defectives that prior art exists; The invention provides a kind of modern design, compact conformation, the galvanic circle is short, tie point is few, low cost of manufacture and high indoor high-voltage vacuum circuit breaker, isolation and the earthed switch combined electrical apparatus of operational reliability, can make ac metal closing switch gear further realize miniaturization.
For realizing the foregoing invention purpose, the present invention has structurally carried out multinomial improvement design to indoor high-voltage vacuum circuit breaker, isolating switch and earthed switch.It improves content and mainly comprises:
---vacuum circuit-breaker, isolation and earthed switch are combined integratedly compact conformation.
---overall structure is side-mounted, is orthoscopic with being electrically connected of main bus bar, economizes copper, save space.
---abandon extensible formula, adopt fixed mounting means, simple in structure, the conduction reliability is high.
---vacuum circuit-breaker is an epoxy resin solid encapsulation formula structure, the run duration very little maintenance.
---isolation of three stations and earthed switch with isolation, connection and grounding function are rotary structure; The blade base of its moving plug-in strip directly is fixed on the top binding post of solid sealed pole of vacuum circuit breaker; The many of moving contact are duckbill, sphere contact structures to contact; And can on moving plug-in strip, suitably swing, reliable with the conductive structure of branch bus or fixed contact.
Below be the technical scheme of indoor high-voltage vacuum circuit breaker of the present invention, isolation and earthed switch combined electrical apparatus:
Indoor high-voltage vacuum circuit breaker, isolation and earthed switch combined electrical apparatus are to be isolated and earthed switch (5) and integrated the combining of public underframe (3) by vacuum circuit-breaker (1), three stations; Described vacuum circuit-breaker (1), three stations are isolated the side-mounted layout that becomes vertical relation with the three-phase galvanic circle employing of earthed switch (5) with the front of ac metal closing switch gear, are orthoscopic with being electrically connected of main bus bar.
Said vacuum circuit-breaker (1) is through electric conductor (12), with fixed connection the between other elements in the realization of screw (13) and packing ring securing members such as (14) and the ac metal closing switch gear, and public underframe (3) adopts the fixed installation between the housing of screw (13) and realization of packing ring securing members such as (14) and ac metal closing switch gear equally.
Said vacuum circuit-breaker (1) is an epoxy resin solid encapsulation formula structure, and its upper connecting terminal (20) directly links to each other with the upper end orthoscopic of vacuum interrupter (21).
Said three stations are isolated and earthed switch (5) is a rotary structure, and its moving plug-in strip (18) is realized rotation through insulation framework (19) under the drive of operating mechanism (8).
The blade base (4) of said moving plug-in strip (18) directly is fixed on the upper connecting terminal (20) of pole (2).
The moving contact of said moving plug-in strip (18); Mainly form by many moving contact sheets (25), skeleton (26) and springs (27) etc. to duckbill; The form that electrically contacts of moving contact sheet (25) is a sphere, and moving contact can be gone up swing at tool arm (28) round the hold-down screw of skeleton (26) in certain angle.
The operating mechanism that three stations are isolated with earthed switch is the motor operating mechanism, and also manually actuating of while can be satisfied the telemechanical manipulation request of intelligent electrical network.
Description of drawings
Fig. 1 is a side-looking structural representation of the present invention.
Fig. 2 is the cross-sectional view of facing of the present invention.
Fig. 3 is the structural representation of three stations isolation of the present invention and the moving plug-in strip of earthed switch.
Fig. 4 is a separate type sketch map of the present invention.
Among the figure: the 1-vacuum circuit-breaker; The 2-pole; The public underframe of 3-; The 4-blade base; 5-three stations are isolated and earthed switch; The 6-branch bus; The 7-main bus bar; The 8-operating mechanism; 9-spring energy-storage operating mechanism; The 10-mechanical driving device; The 11-current transformer; The 12-electric conductor; The 13-screw; The 14-packing ring; 15-lower wire end; The 16-mixture of epoxy resins; 17-ground connection fixed contact; 18-moves plug-in strip; The 19-insulation framework; The 20-upper connecting terminal; The 21-vacuum interrupter; The 22-sliding contact; 23-sliding contact seat; The 24-insulated tension pole; 25-moving contact sheet; The 26-skeleton; The 27-springs; The 28-tool arm; The special-purpose underframe of 29-; The 30-insulating sleeve.
Embodiment
Below in conjunction with accompanying drawing and embodiment indoor high-voltage vacuum circuit breaker of the present invention, isolation and earthed switch combined electrical apparatus are described further.
Shown in accompanying drawing 1, indoor high-voltage vacuum circuit breaker of the present invention, isolation and earthed switch combined electrical apparatus are mainly isolated by vacuum circuit-breaker (1), three stations and earthed switch (5) and public underframe integrated compositions such as (3).
Overall structure of the present invention is side-mounted layout; Be that vacuum circuit-breaker (1), three stations are isolated and the arranged direction of the three-phase galvanic circle of earthed switch (5) is to become vertical relation with the front of ac metal closing switch gear (A of Fig. 1 to); The branch bus (6) that connects isolation of three stations and earthed switch (5) and be contained between the main bus bar on the ac metal closing switch gear (7) is simple orthoscopic, needn't crooked or distortion.
The present invention is the fixed installation mode; Be other elements such as the connected mode between the current transformer (11) in vacuum circuit-breaker (1) and the ac metal closing switch gear; Be fixedly connected with packing ring securing members such as (14) with screw (13) through electric conductor (12), public underframe (3) also be with screw (13) and packing ring securing members such as (14) with the housing of ac metal closing switch gear be fixedly connected fixed installation.
Vacuum circuit-breaker (1) is a solid encapsulation formula structure, mainly is made up of pole (2), spring energy-storage operating mechanism (9) and mechanical driving device (10) etc.
Shown in accompanying drawing 2; The lower wire end of pole (2) (15), vacuum interrupter (21), upper connecting terminal (20), etc. usefulness mixture of epoxy resins (16) be integrally formed through automatic pressure gelation process, sliding contact (22), sliding contact seat (23) and insulated tension pole (24) are adorned its inside.The last outlet direction of existing solid sealed pole of vacuum circuit breaker all is to be vertical with the axis of vacuum interrupter; And will link to each other with binding post through long conductor, and the upper end of upper connecting terminal of the present invention (20) and vacuum interrupter (21) is that orthoscopic directly links to each other.
Three stations are isolated and earthed switch (5) is a rotary structure, and the blade base (4) of its moving plug-in strip (18) directly is fixed on the top binding post (20) of pole (2).Rotatable insulation framework (19) is processed with phenolic composition or mixture of epoxy resins etc., and moving plug-in strip (18) is stuck in the neutral gear place of insulation framework (19).The fixed contact of isolating switch is exactly the branch bus (6) of ac metal closing switch gear, and is the same with the ground connection fixed contact (17) of earthed switch, is fixed on the cabinet of ac metal closing switch gear.Its operating mechanism (8) is the motor actuating, also manually actuating simultaneously.
Shown in accompanying drawing 3, accompanying drawing 4, moving plug-in strip (18) mainly is made up of tool arm (28) and moving contact two parts, and the bottom of tool arm (28) is installed on the blade base (4), by spring compression and rotatable.The moving contact that install on tool arm (28) top mainly is made up of many moving contact sheets (25) to duckbill, skeleton (26) and springs (27) etc., and moving contact sheet (25) is a sphere with the form that electrically contacts of ground connection fixed contact (17) or branch bus (6).Moving contact can be gone up swing, automatic capturing contact position at tool arm (28) round the hold-down screw of skeleton (26) in certain angle.
Public underframe (3) is formed by bending steel plate welding assembly.
Operation principle of the present invention is: after the spring energy-storage operating mechanism (9) of vacuum circuit-breaker (1) is received operational order; Its output toggle arm driving device transmission device (10) moves to the left or to the right; And break-in becomes the motion up or down of insulated tension pole (24), promotion or pulling vacuum interrupter (21) completion combined floodgate or sub-switching operation.Under the non-power status, three stations are isolated and the moving plug-in strip (18) of earthed switch (5) is in the isolated location shown in the accompanying drawing 2.During operation, operating mechanism (8) drives insulation framework (19) and drives moving plug-in strip (18) rotation.Turn clockwise, moving plug-in strip (18) is connected with branch bus (6), accomplishes the closing operation of isolating switch; Otherwise, be the sub-switching operation of isolating switch; Be rotated counterclockwise, moving plug-in strip (18) is connected with ground connection fixed contact (17), accomplishes the closing operation of earthed switch.Then, corresponding linkage can close a floodgate by automatic actuating vacuum circuit-breaker (1), realizes the short circuit ground connection of lower wire end, and earthed switch only through short circuit current, is not born the pass of short circuit current and closed function, has improved the life-span of earthed switch; Otherwise, be the sub-switching operation of earthed switch.
Have between vacuum circuit-breaker (1), the isolation of three stations and the earthed switch (5) and prevent misoperation apparatus accordingly.
Whenever necessary, three stations are isolated and earthed switch (5) also can be established special-purpose underframe (29) and vacuum circuit-breaker (1) apart arrangement in addition, and blade base this moment (4) is contained on the insulating sleeve (30).
Claims (7)
1. an indoor high-voltage vacuum circuit breaker, isolation and earthed switch combined electrical apparatus; It is characterized in that: isolate and earthed switch (5) and integrated the combining of public underframe (3) by vacuum circuit-breaker (1), three stations; Described vacuum circuit-breaker (1), three stations are isolated the side-mounted layout that becomes vertical relation with the three-phase galvanic circle employing of earthed switch (5) with the front of ac metal closing switch gear, are orthoscopic with being electrically connected of main bus bar.
2. indoor high-voltage vacuum circuit breaker according to claim 1, isolation and earthed switch combined electrical apparatus; It is characterized in that: said vacuum circuit-breaker (1) is through electric conductor (12), with fixed connection the between other elements in the realization of screw (13) and packing ring securing members such as (14) and the ac metal closing switch gear, and public underframe (3) adopts the fixed installation between the housing of screw (13) and realization of packing ring securing members such as (14) and ac metal closing switch gear equally.
3. indoor high-voltage vacuum circuit breaker according to claim 1, isolation and earthed switch combined electrical apparatus; It is characterized in that: said vacuum circuit-breaker (1) is epoxy resin solid encapsulation formula structure, and its upper connecting terminal (20) directly links to each other with the upper end orthoscopic of vacuum interrupter (21).
4. indoor high-voltage vacuum circuit breaker according to claim 1, isolation and earthed switch combined electrical apparatus; It is characterized in that: said three stations are isolated and earthed switch (5) is a rotary structure, and its moving plug-in strip (18) is realized rotation through insulation framework (19) under the drive of operating mechanism (8).
5. indoor high-voltage vacuum circuit breaker according to claim 4, isolation and earthed switch combined electrical apparatus is characterized in that: the blade base (4) of said moving plug-in strip (18) directly is fixed on the upper connecting terminal (20) of pole (2).
6. indoor high-voltage vacuum circuit breaker according to claim 4, isolation and earthed switch combined electrical apparatus; It is characterized in that: the moving contact of said moving plug-in strip (18); Mainly form by many moving contact sheets (25), skeleton (26) and springs (27) etc. to duckbill; The form that electrically contacts of moving contact sheet (25) is a sphere, and moving contact can be gone up swing at tool arm (28) round the hold-down screw of skeleton (26) in certain angle.
7. indoor high-voltage vacuum circuit breaker according to claim 4, isolation and earthed switch combined electrical apparatus is characterized in that: said three stations are isolated and earthed switch (5) operating mechanism can be the motor actuating, also can be manual actuating simultaneously.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204167778U CN202230967U (en) | 2011-10-28 | 2011-10-28 | Combined electric device of indoor high-voltage vacuum circuit breaker and isolating and grounding switch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204167778U CN202230967U (en) | 2011-10-28 | 2011-10-28 | Combined electric device of indoor high-voltage vacuum circuit breaker and isolating and grounding switch |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202230967U true CN202230967U (en) | 2012-05-23 |
Family
ID=46081545
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011204167778U Withdrawn - After Issue CN202230967U (en) | 2011-10-28 | 2011-10-28 | Combined electric device of indoor high-voltage vacuum circuit breaker and isolating and grounding switch |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202230967U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102509678A (en) * | 2011-10-28 | 2012-06-20 | 郑州伏安国能电气技术有限公司 | Combined electrical apparatus of indoor high-pressure vacuum circuit breaker and isolation/ground switch |
| CN103944091A (en) * | 2014-04-30 | 2014-07-23 | 新疆新华能电气股份有限公司 | Combined solid insulation switch cabinet and detachable implementation method thereof |
| CN106298397A (en) * | 2016-08-31 | 2017-01-04 | 中国西电电气股份有限公司 | A kind of isolation circuit breakers cubicle switch and operational approach |
-
2011
- 2011-10-28 CN CN2011204167778U patent/CN202230967U/en not_active Withdrawn - After Issue
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102509678A (en) * | 2011-10-28 | 2012-06-20 | 郑州伏安国能电气技术有限公司 | Combined electrical apparatus of indoor high-pressure vacuum circuit breaker and isolation/ground switch |
| CN102509678B (en) * | 2011-10-28 | 2013-10-02 | 郑州伏安国能电气技术有限公司 | Combined electrical apparatus of indoor high-pressure vacuum circuit breaker and isolation/ground switch |
| CN103944091A (en) * | 2014-04-30 | 2014-07-23 | 新疆新华能电气股份有限公司 | Combined solid insulation switch cabinet and detachable implementation method thereof |
| CN106298397A (en) * | 2016-08-31 | 2017-01-04 | 中国西电电气股份有限公司 | A kind of isolation circuit breakers cubicle switch and operational approach |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20120523 Effective date of abandoning: 20131002 |
|
| RGAV | Abandon patent right to avoid regrant |