CN205069486U - Big galvanic isolation switch of indoor high pressure - Google Patents
Big galvanic isolation switch of indoor high pressure Download PDFInfo
- Publication number
- CN205069486U CN205069486U CN201520859961.8U CN201520859961U CN205069486U CN 205069486 U CN205069486 U CN 205069486U CN 201520859961 U CN201520859961 U CN 201520859961U CN 205069486 U CN205069486 U CN 205069486U
- Authority
- CN
- China
- Prior art keywords
- fixed contact
- heavy current
- indoor high
- conducting bar
- operating mechanism
- 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.)
- Active
Links
Abstract
The utility model relates to a big galvanic isolation switch of indoor high pressure, it is through setting up two coaxial static contacts, realize cuting straightly the formula switching with the level of moving contact conducting rod, two static contacts provide the hookup location of high potential generating line respectively, make the whole high potential in operating mechanism and generating line are in the electric wire netting simultaneously of switch, avoided because the high pressure destroys operating device and keeps apart problem insulating between the sword main part, utilize the setting of the operating mechanism of insulation against ground, can guarantee the insulation of its control, realize the electric isolation of drive and control, and has strong electromagnetic interference resistance, the malfunction that strong electromagnetic interference brought has been avoided, the operation is safe convenient, reduce engineering cost, heavy current indoors especially, use under the high voltage operating mode, the spacing level motion of having guaranteed the moving contact conducting rod of second static contact to its operating mechanism, sound contact utilize the fracture to open apart from satisfying the isolation demand all on same straight line, and plasticity is strong, can satisfy different electric pressures under, the isolation demand in the indoor high -pressure heavy current return circuit of frequent operation.
Description
Technical field
The utility model relates to bus isolating switch, is specially a kind of indoor high-voltage heavy current disconnecting switches.
Background technology
Isolating switch mainly plays Secure isolation effect in electrical network, can bear the short circuit current identical with circuit breaker simultaneously, generally not have and close short circuit current ability.The size that being arranged in of system circuit is decided by isolating switch to a great extent and structure are formed, and have rotary, disconnecting link formula, plug-in type action isolating switch in the market, operating mechanism all insulate to prevent high potential from invading secondary control system with Switch main body.Along with electric pressure improves, electric current increases, and mechanism bears electric power and accumulates, and brings more test to operating mechanism tolerance level of becoming attached to.During the capacity test loop of indoorly to close when it is applied to, cut-offfing with switching test, due to needs frequent operation, and under isolating switch is operated in the strong-electromagnetic field environment of high voltage, big current, operating mechanism is easily made to be interfered and to cause isolation knife misoperation.
Utility model content
For problems of the prior art, the utility model provides a kind of compact conformation operated under big current operating mode, and operation maintenance is simple, use safety, the direct insertion isolating switch of easy to operate level.
The utility model is achieved through the following technical solutions:
A kind of indoor high-voltage heavy current disconnecting switches, comprises support, the first fixed contact of coaxial setting and the second fixed contact, and the movable contact conducting bar coordinated with the first fixed contact and the horizontal straight cutting of the second fixed contact; First fixed contact and the second fixed contact are connected in high potential bus corresponding in electrical network, and arrange gap-forming fracture between adjacent port and open distance; Movable contact conducting bar one end is arranged for providing actuating force and the operating mechanism of insulation against ground, and movable contact conducting bar is electrically connected with the second fixed contact all the time, and the other end coordinates with the first fixed contact grafting; First fixed contact and the second fixed contact are arranged on respectively and are divided on two-part support, support installation parallel with bus.
Preferably, support is that hollow out is arranged, and is provided with some different installation sites.
Preferably, operating mechanism adopts pneumatic actuation, and air rammer pull bar adopts steel to make.
Further, pneumatic actuation is connected with the secondary control system of control isolating switch folding by pneumatic pipeline or optical cable, and secondary control system is placed in the control cubicle outside safe distance.
Preferably, movable contact conducting bar is that hollow is arranged, electroplate, and two ends arrange the guiding conical surface.
Preferably, arrange guide collar in the second fixed contact with the contact site of movable contact conducting bar, guide collar is arranged in corresponding mounting groove.
Preferably, the first fixed contact and the interior position coordinated with movable contact conducting bar of the second fixed contact are respectively arranged with spring touch finger.
Further, spring touch finger ovalize is arranged, and adopts silver alloy to make, inlays in the mounting groove of corresponding fixed contact.
Compared with prior art, the utility model has following useful technique effect:
The utility model is by arranging two coaxial fixed contacts, realize the direct insertion switching of level with movable contact conducting bar, two fixed contacts provide the link position of high potential bus respectively, make switch entirety comprise operating mechanism and bus and be in high potential in electrical network simultaneously, avoid because high pressure destroys the problem insulated between operating mechanism and isolation knife main body, utilize the setting of the operating mechanism of insulation against ground, its insulation controlled can be ensured, realize the electrical isolation driving and control, anti-electromagnetic interference capability is strong, avoid the misoperation that strong electromagnetic is brought, safe and convenient operation, reduce project cost, particularly indoors big current, use under high voltage operating mode, by the spacing horizontal movement that ensure that movable contact conducting bar of the second fixed contact, and its operating mechanism, dynamic/static contact are all on same straight line, fracture is utilized to open apart from meeting isolation requirement, plasticity is strong, under different electric pressure can be met, the isolating switch demand in the indoor high-voltage big current loop of frequent operation.
Further, its built on stilts installation can be made by the setting of support, and can according to required rated voltage size, adjustment fracture opens distance, meets the insulation distance designing requirement under different situations.The support that hollow out is arranged can also reduce physical dimension, takes up room little, safeguards simple.
Further, adopt the operating mechanism of pneumatic actuation, make it have fire prevention, explosion-proof, pollution-free, little by electromagnetic field effects, reliable operation, safeguard advantage easily; Air rammer pull bar adopts steel material simultaneously, repeatedly can bear electric power and impact, avoid frequent operation to rupture.
Further, by being arranged on by secondary control system in the control cubicle outside safe distance, making it away from isolation knife body, being connected by tracheae, when there is flashover, secondary control system is attacked from high pressure; And conveniently electromagnetic shielding setting is carried out to secondary control system.
Further, the horizontal balance of movable contact conducting bar in on/off switch process is ensured by arranging of guide collar.
Further, by the setting of spring touch finger, when can meet conducting rod "on" position and the intimate electrical contact of the first fixed contact, and with the good contact of the second fixed contact, ensure the excellent electric contact after closing a floodgate.
Further, the air core designs of movable contact conducting bar, reduces kelvin effect, reduces power loss, prevents from departing from running orbit due to contact deadweight tenesmus in switching process.
Accompanying drawing explanation
Fig. 1 is the structural representation of isolating switch described in the utility model example.
Fig. 2 is the vertical view of Fig. 1 medium-height trestle.
In figure: movable contact conducting bar 1, the second fixed contact 2, guide collar 3, the first fixed contact 4, spring touch finger 5, support 6, operating mechanism 7.
Embodiment
Below in conjunction with accompanying drawing, the utility model is described in further detail, described in be to explanation of the present utility model instead of restriction.
A kind of indoor high-voltage heavy current disconnecting switches of the utility model, comprises coaxial the first fixed contact 4, second fixed contact 2 arranged, support 6, and the movable contact conducting bar 1 coordinated with the horizontal straight cutting of fixed contact; The two ends of first and second fixed contact bus corresponding to electrical network respectively connect, and arrange the suitable fracture of gap-forming between adjacent port and open distance, meet fracture insulation needs; Described movable contact conducting bar 1 one end arranges operating mechanism 7, air cylinder driven is adopted in this preferred embodiment, it is connected by cylinder piston pull bar with movable contact conducting bar 1, cylinder body is provided with on/off switch signal lamp, and by on/off switch signal feedback to remote operation control desk, secondary control system is arranged in the control cubicle outside safe distance, being connected to driving cylinder, playing pneumoelectric buffer action by drawing turnover two tracheaes in control cubicle; In isolating switch switching process, make to ventilate respectively into and out of tracheae to promote cylinder piston pull bar by secondary control system, thus drive movable contact conducting bar 1 to realize the operation of isolating switch on/off switch.During isolating switch charging operation, operating mechanism 7 all the time with Switch main body described in the utility model, connect bus and be in high potential together, control cubicle and Switch main body are due to distant and carried out pneumoelectric isolation, control cubicle itself has also carried out electromagnetic shielding, and the secondary control system therefore arranged in control cubicle can not be subject to high pressure invasion and attack or cause misoperation due to strong electromagnetic.
First fixed contact 4, second fixed contact 2, and operating mechanism 7 is all arranged on and is divided on the support 6 of two-part hollow out.The utility model can meet rated voltage 110kV, and all kinds capacity test requirement in rated short circuit current effective value 80kA, described forward and backward fixed contact can determine insulation clearance according to electric pressure, and insulation distance can extend according to designing requirement.
In direct insertion switching in the utility model structure, can according to required rated voltage size, adjustment fracture opens distance, meets insulation distance designing requirement; Due to the utility model compact structure, for indoor side-mounted suspension is installed, coordinate with pneumatic operating mechanism, operation maintenance is safe and simple, meets design requirement, and decreases the project cost of indoor power transformation, and particularly indoors a large amount of Use Limitation fruit is remarkable; The utility model also can close short circuit current by coordinating with quick operating mechanism, and plasticity is strong.
As shown in Figure 1, in this preferred embodiment, it comprises the support 6 of two groups of fixed contacts and the movable contact conducting bar 1 coordinated with fixed contact, hollow type.Two groups of fixed contacts include the first fixed contact 4 and the second fixed contact 2, two groups of fixed contacts employing coaxial design fixed on the frame 6, and each phase main bus bar front and rear sections that first and second fixed contact of each phase is corresponding with electrical network is respectively connected; Fixing movable contact conducting bar 1 is provided with between first fixed contact 4 of each phase and the second fixed contact 2, movable contact conducting bar 1 other end is connected with the output of operating mechanism 7, in electrical network, three-phase is each independently mutually installs, can independent operation or three-phase altogether mechanism operate simultaneously.The support 6 of fixed contact designs for hollow type, and alleviate own wt, steadiness is high, and fixed contact pedestal is screwed on support 6.
Wherein, fixed contact is built with guide collar 3 and spring touch finger 5.Guide collar 3 is polytetrafluoro material, there is self-lubricating function, be arranged in the second fixed contact 2, after installation, the anchor ring of guide collar 3, higher than inlaying groove face, closely cooperates with movable contact conducting bar 1, makes can remain centering in movable contact conducting bar 1 switching process, ensure movable contact conducting bar 1 after closing a floodgate can completely, the contacting with spring touch finger 5, because moving contact off-track causes spring touch finger 1 to burn out during anti-stop-pass big current of even, straight line; Spring touch finger 1 is oval silver alloy material, is embedded in fixed contact groove, and each circle has 80 contacts, often organizes in fixed contact and is provided with four coil spring fingertips 1 at least altogether, to ensure dynamic and static contact close contact, reach the technical requirement of conducting big current.Movable contact conducting bar 1 is provided with moving contact installing hole, and moving contact is connected with operating mechanism by moving contact installing hole, and moving contact is air core designs, electroplate.Movable contact conducting bar 1 two ends are designed with the guiding conical surface being easy to enter fixed contact, improve the stability that the utility model relates to the operation of isolating switch switching.
As in Fig. 1, in the first fixed contact 4 and the second fixed contact 2, all have recess groove, spring touch finger 5 is housed in recess groove, in the second fixed contact 2, guide collar 3 is housed; Arranging of guide collar 3 ensures that movable contact conducting bar 1 can keep horizontal balance in on/off switch process; The setting of spring touch finger 5 can make to keep close contact with spring touch finger 5 in the second fixed contact 2 all the time during movable contact conducting bar 1 on/off switch state, close a floodgate after conducting rod 1 can with the first fixed contact 4 compact siro spinning technology;
As depicted in figs. 1 and 2, in the utility model, the first fixed contact 4 and the second fixed contact 2 are arranged on the support 6 of hollow out respectively by screw, and compact structure, does not take up space, and safeguard simple.
During use, as shown in Figure 1, the first fixed contact 4 is connected with corresponding phase bus one end, and the second fixed contact 2 is connected with the bus other end, is in high potential simultaneously; In isolating switch switching process, movable contact conducting bar 1 remains and to be connected with the second fixed contact 2; Under the effect of actuating machine 7 structure, movable contact conducting bar 1 travels forward, and makes movable contact conducting bar 1 level insert in the first fixed contact 4, contacts with spring touch finger 5 in the first fixed contact 4, realizes isolating switch and closes a floodgate; During separating brake, under operating mechanism 7 acts on, movable contact conducting bar 1 moves backward, departs from the first fixed contact 4, until when movable contact conducting bar 1 cutter head reaches the second fixed contact 2 front end, realize isolating switch separating brake.
Although what the present embodiment adopted is single-phase isolating switch, be equally applicable to three-phase or heterogeneous isolating switch; Dynamic/static contact is connected with the bus of corresponding phase respectively, independent operating mechanism 7 can be adopted, also can share a set of operating mechanism 7; The utility model can also close short circuit current by coordinating with quick operating mechanism, and plasticity is strong; And operating mechanism 7 preferably adopts pneumatic actuation, in this preferred embodiment, adopt air cylinder driven movable contact conducting bar 1.
Claims (8)
1. an indoor high-voltage heavy current disconnecting switches, it is characterized in that, comprise support (6), first fixed contact (4) of coaxial setting and the second fixed contact (2), and the movable contact conducting bar (1) coordinated with the first fixed contact (4) and the second fixed contact (2) horizontal straight cutting;
Described first fixed contact (4) and the second fixed contact (2) are connected in high potential bus corresponding in electrical network, and arrange gap-forming fracture between adjacent port and open distance;
Described movable contact conducting bar (1) one end is arranged for providing actuating force and the operating mechanism of insulation against ground (7), movable contact conducting bar (1) is electrically connected with the second fixed contact (2) all the time, and the other end coordinates with the first fixed contact (4) grafting;
First fixed contact (4) and the second fixed contact (2) are arranged on respectively and are divided on two-part support (6), support (6) installation parallel with bus.
2. a kind of indoor high-voltage heavy current disconnecting switches according to claim 1, is characterized in that, described support (6) is arranged in hollow out, and is provided with some different installation sites.
3. a kind of indoor high-voltage heavy current disconnecting switches according to claim 1, is characterized in that, described operating mechanism (7) adopts pneumatic actuation, and air rammer pull bar adopts steel to make.
4. a kind of indoor high-voltage heavy current disconnecting switches according to claim 3, it is characterized in that, pneumatic actuation is connected with the secondary control system of control isolating switch folding by pneumatic pipeline or optical cable, and secondary control system is placed in the control cubicle outside safe distance.
5. a kind of indoor high-voltage heavy current disconnecting switches according to claim 1, is characterized in that, described movable contact conducting bar (1) is arranged in hollow, electroplate, and two ends arrange the guiding conical surface.
6. a kind of indoor high-voltage heavy current disconnecting switches according to claim 1, it is characterized in that, arrange guide collar (3) with the contact site of movable contact conducting bar (1) in second fixed contact (2), guide collar is arranged in corresponding mounting groove.
7. a kind of indoor high-voltage heavy current disconnecting switches according to claim 1, it is characterized in that, the first fixed contact (4) and the interior position coordinated with movable contact conducting bar (1) of the second fixed contact (2) are respectively arranged with spring touch finger (5).
8. a kind of indoor high-voltage heavy current disconnecting switches according to claim 7, is characterized in that, spring touch finger (5) ovalize is arranged, and adopts silver alloy to make, inlays in the mounting groove of corresponding fixed contact.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520859961.8U CN205069486U (en) | 2015-10-30 | 2015-10-30 | Big galvanic isolation switch of indoor high pressure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520859961.8U CN205069486U (en) | 2015-10-30 | 2015-10-30 | Big galvanic isolation switch of indoor high pressure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205069486U true CN205069486U (en) | 2016-03-02 |
Family
ID=55396006
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520859961.8U Active CN205069486U (en) | 2015-10-30 | 2015-10-30 | Big galvanic isolation switch of indoor high pressure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205069486U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108426709A (en) * | 2018-04-27 | 2018-08-21 | 山东泰开高压开关有限公司 | A kind of GIL spring touch fingers experimental rig |
| CN110010426A (en) * | 2019-04-22 | 2019-07-12 | 忻州尚华扬电器设备有限公司 | A kind of squash type moving contact being embedded in copper rod based on sleeve |
| CN110010415A (en) * | 2019-05-07 | 2019-07-12 | 陕西秦屿电器有限公司 | A kind of disconnecting relay |
| CN112180131A (en) * | 2020-09-30 | 2021-01-05 | 国网黑龙江省电力有限公司电力科学研究院 | Probe mechanism of on-line measuring device for contact voltage of isolating switch |
-
2015
- 2015-10-30 CN CN201520859961.8U patent/CN205069486U/en active Active
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108426709A (en) * | 2018-04-27 | 2018-08-21 | 山东泰开高压开关有限公司 | A kind of GIL spring touch fingers experimental rig |
| CN108426709B (en) * | 2018-04-27 | 2024-02-23 | 山东泰开高压开关有限公司 | GIL spring contact finger test device |
| CN110010426A (en) * | 2019-04-22 | 2019-07-12 | 忻州尚华扬电器设备有限公司 | A kind of squash type moving contact being embedded in copper rod based on sleeve |
| CN110010426B (en) * | 2019-04-22 | 2024-03-19 | 忻州尚华扬电器设备有限公司 | Extrusion type moving contact inlaid in copper bar based on sleeve |
| CN110010415A (en) * | 2019-05-07 | 2019-07-12 | 陕西秦屿电器有限公司 | A kind of disconnecting relay |
| CN112180131A (en) * | 2020-09-30 | 2021-01-05 | 国网黑龙江省电力有限公司电力科学研究院 | Probe mechanism of on-line measuring device for contact voltage of isolating switch |
| CN112180131B (en) * | 2020-09-30 | 2024-03-08 | 国网黑龙江省电力有限公司电力科学研究院 | Probe mechanism of on-line measuring device for contact voltage of isolating switch |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN205069486U (en) | Big galvanic isolation switch of indoor high pressure | |
| CN108233243B (en) | Gas insulation switch cabinet | |
| CN214043524U (en) | Permanent magnet vacuum circuit breaker | |
| CN203192672U (en) | Direct-acting three-position isolating switch | |
| CN107481889A (en) | A kind of vacuum interrupter from actuating and its from actuating method | |
| CN105070577A (en) | Isolation grounding switch mechanism, single-pole component and GIS electrical equipment | |
| CN202839451U (en) | Vacuum arc extinguish chamber | |
| CN109244926A (en) | A kind of packet type switch electric appliance | |
| CN105162025A (en) | Breaker air chamber and double-isolation feed line cabinet with the breaker gas chamber | |
| CN205645662U (en) | Outdoor intelligent permanent magnet vacuum circuit breaker | |
| CN101847840A (en) | Annular net cabinet internally provided with vacuum breaker | |
| CN201758097U (en) | Permanent magnet vacuum unidirectional switch and multifunctional combined switch provided with the same | |
| CN204835350U (en) | Epoxy resin cast solid insulation cubical switchboard | |
| CN208723432U (en) | A kind of packet type switch electric appliance | |
| CN204361550U (en) | A kind of solid all-insulated switch | |
| CN104143451A (en) | High-speed earthing switch and earthing switch assembly unit with same | |
| CN204835352U (en) | Circuit breaker air chamber and have two feeder cabinets of keeping apart of this circuit breaker air chamber | |
| CN104143464A (en) | Earthing switch assembling unit and high-speed earthing switch | |
| CN204258128U (en) | Solid-state insulated switchgear | |
| CN209119670U (en) | A kind of 220kV Cubicle Gas-Insulated Switchgear breaker and application structure | |
| CN104143466A (en) | Earth switch assembly unit and high-speed earth switch thereof | |
| CN203351963U (en) | Grounding loop of high-voltage switch cabinet | |
| CN104143465A (en) | High-speed earthing switch and earthing switch assembly unit with the same | |
| CN203179779U (en) | Ground switch of transmission structure | |
| CN219040274U (en) | Quick grounding switch |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20210817 Address after: 710077 No. 18 West Second Ring Road, Shaanxi, Xi'an Patentee after: XI'AN HIGH VOLTAGE APPARATUS RESEARCH INSTITUTE Co.,Ltd. Address before: 710075 Shaanxi city of Xi'an Province Tang Hing Road No. 7 Patentee before: CHINA XD ELECTRIC Co.,Ltd. Patentee before: XI'AN HIGH VOLTAGE APPARATUS RESEARCH INSTITUTE Co.,Ltd. |
|
| CP01 | Change in the name or title of a patent holder | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 710077 No. 18 West Second Ring Road, Shaanxi, Xi'an Patentee after: Xi'an High Voltage Electrical Apparatus Research Institute Co.,Ltd. Address before: 710077 No. 18 West Second Ring Road, Shaanxi, Xi'an Patentee before: XI'AN HIGH VOLTAGE APPARATUS RESEARCH INSTITUTE Co.,Ltd. |