CN202633154U - High-voltage alternating-current combined type vacuum load switch - Google Patents
High-voltage alternating-current combined type vacuum load switch Download PDFInfo
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- CN202633154U CN202633154U CN 201220347615 CN201220347615U CN202633154U CN 202633154 U CN202633154 U CN 202633154U CN 201220347615 CN201220347615 CN 201220347615 CN 201220347615 U CN201220347615 U CN 201220347615U CN 202633154 U CN202633154 U CN 202633154U
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- 238000009413 insulation Methods 0.000 claims abstract description 18
- 230000007246 mechanism Effects 0.000 claims abstract description 10
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- 239000002131 composite material Substances 0.000 claims description 17
- 239000003822 epoxy resin Substances 0.000 claims description 7
- 229920000647 polyepoxide Polymers 0.000 claims description 7
- 239000007787 solid Substances 0.000 claims description 6
- 230000008033 biological extinction Effects 0.000 claims description 4
- 230000003068 static effect Effects 0.000 abstract 4
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- 238000005516 engineering process Methods 0.000 description 5
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- 230000000694 effects Effects 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 239000004593 Epoxy Substances 0.000 description 2
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- 238000005538 encapsulation Methods 0.000 description 2
- 238000009422 external insulation Methods 0.000 description 2
- 239000005431 greenhouse gas Substances 0.000 description 2
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- 206010001541 Akinesia Diseases 0.000 description 1
- 230000002159 abnormal effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 238000009833 condensation Methods 0.000 description 1
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- 238000001514 detection method Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 238000004146 energy storage Methods 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
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- 239000012212 insulator Substances 0.000 description 1
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Abstract
The utility model relates to a high-voltage alternating-current combined type vacuum load switch, which comprises an encapsulated vacuum load switch unit, an isolating switch unit, a grounding switch unit and an interlocking mechanism, wherein the load switch unit, the isolating switch unit, the grounding switch unit and the interlocking mechanism are assembled on the same frame; a primary conductive part of the load switch unit and a primary conductive movable contact of the isolating switch unit are combined together by an encapsulated and contact-finger structure; a primary conductive static contact of the isolating switch unit and a cover-shaped insulating barrel of the primary conductive static contact are independently arranged on the frame; the movable contact and the static contact of the isolating switch unit are spaced from each other in an air insulation manner; and one end of an encapsulated pole of the load switch unit and a static contact of the grounding unit are jointly arranged on an insulating support through a conducting bar and are combined into a whole. The high-voltage alternating-current combined type vacuum load switch is compact in structure, reasonable in operation, small in integral mounting size, good in safety performance, high in reliability and long in repair period, and electrical properties of the units can be well coordinated and matched within limited frame space.
Description
Technical field
The utility model relates to the technical field of High-Voltage Electrical Appliances, particularly a kind of high-voltage alternating composite type vacuum load switch.
Background technology
Existing high-voltage alternating on-load switch normally is installed in the metal enclosed switchgear with fixed form; On-load switch is as the core parts of switchgear; Can carry, cut-off, close the normal current that closes in the working line, also can carry the abnormal current of regulation at the appointed time.On-load switch is being born the major function of metal enclosed switchgear, but on-load switch is not the whole of switchgear, and switchgear also is equipped with isolating switch and earthed switch usually.Isolating switch is when minute position, and the insulation distance of requirement up to specification and tangible fracture sign are arranged between contact; When closing the position, can carry the electric current and the switch of the electric current under the exceptional condition at the appointed time under the regular link condition.Earthed switch is a kind of mechanical switch device that is used for loop ground connection.Adopt the ac metal closing switch gear of on-load switch now on the market; The compound mode of its on-load switch, isolating switch and earthed switch has multiple; Some products are blindly pursued miniaturization and have been sacrificed the cut-offfing of on-load switch, making capability, and the specified transfer current during especially for the on-load switch fuse combined electric apparatus is little; Other products are integral on-load switch, isolating switch and earthed switch simple concatenation, do not realize the isolation fully of isolating switch, the phenomenon of false fracture occurs, have stayed potential safety hazard; Also have, the earthed switch of most products is the E0 level earthed switches that do not have making capability, under the manually operated at the scene condition, and poor safety performance.To above-mentioned situation, the utility model is designed and developed a kind of high-voltage alternating composite type vacuum load switch, is combined into a new-type element to on-load switch, isolating switch and earthed switch, has solved the drawback of the said goods.
In addition, now on the market the popular High-Voltage Electrical Appliances that are used for power distribution network divide most two kinds of air insulation and gas-insulateds that are by insulation system.Air insulation is that each element is combined according to the appliance wiring requirement, no special airtight isolation between each element.Gas-insulated is that the electrification in high voltage position with each element is sealed in the grounded metal enclosure, fills in the shell with the good SF of insulation property
6Gas, each element connect to form an integral body successively.Air insulation structural volume and floor space are all bigger.And gas-insulated structure is because SF is filled in inside
6Gas can cause following problem: 1, SF
6Gas belongs to hot room gas, 6 kinds of greenhouse gases in the Kyoto Protocol that passed through in 1997, pointing out, SF
6Be the strongest a kind of of greenhouse effect, its greenhouse effects of the earth coefficient is CO
223900 times, the life-span in atmosphere is 3200, is using and removal process has the great risk of contaminated environment; 2, equipment fault accident is serious, because the equipment sealing is installed, in case inner element has an accident, can cause the inefficacy of whole equipment to be scrapped; 3, safeguard inconvenience, the overhaul of the equipments time is long; 4, extra gas detection equipment and ventilation equipment will be installed in the equipment field of employment, increase the production run cost.While SF
6The on-load switch connecting-disconnecting function of arc extinguishing is smaller, and particularly the transfer current connecting-disconnecting function promotes difficulty.To above-mentioned situation, the utility model is designed and developed a kind of composite type vacuum load switch, substitutes to produce the SF of environmental pollution
6The gas-filled type on-load switch.
The utility model content
The shortcoming that the purpose of the utility model is to overcome prior art provides a kind of high-voltage alternating composite type vacuum load switch with not enough.It is combined into a new device to on-load switch, isolating switch and earthed switch, solves that switchgear transfer current connecting-disconnecting function is little, the false fracture of isolating switch and earthed switch do not possess disadvantages such as making capability; Adopt vacuum extinction technology and solid encapsulation technique simultaneously, both solved SF
6The risk that gaseous environment pollutes has solved the low defective of the big reliability of air insulation structural volume again.
In order to achieve the above object, the utility model adopts following technical scheme:
The utility model relates to a kind of high-voltage alternating composite type vacuum load switch; Comprise load switching unit, Disconnecting switch unit, earthed switch unit and interlocking device, said load switching unit, Disconnecting switch unit, earthed switch unit and interlocking device are assemblied on the same framework; The primary conductive part of said load switching unit and the moving contact of Disconnecting switch unit primary conductive combine with solid envelope and fingertip structure; Fixed contact of said Disconnecting switch unit and cover type insulating cylinder thereof are arranged separately on the framework, and its moving contact and fixed contact form air insulation at interval when the Disconnecting switch unit separating brake; The lower end of the pole of said load switching unit and the fixed contact of ground unit are installed on the insulating support jointly.Said earthed switch unit can be installed on the framework independently.Interlocking device between said isolating switch, on-load switch, the earthed switch is installed on the framework.
Preferably, the vacuum interrupter of said load switching unit, upward outlet, following outlet and isolating switch supporting seat are packaged into one with epoxy resin, form airtight pole.
Preferably, the last outlet of said load switching unit and the moving contact of Disconnecting switch unit are realized electrically connecting with spring touch finger, and moving contact can move up and down.
Preferably, following outlet one end of said load switching unit and vacuum interrupter are realized electrically connecting with spring touch finger, and the other end is installed busbar and the earthed switch unit combination is integral.
Preferably, said Disconnecting switch unit is arranged on the top of load switching unit, and the fixed contact of Disconnecting switch unit is installed in the cover type insulating cylinder, and the moving contact of Disconnecting switch unit is installed on the left end of pole.
Preferably, said load switching unit is vacuum extinction.
Preferably, the operating mechanism of said load switching unit is equipped with drive rod, drives connecting lever, support is won in succession, transmission is won in succession, output toggle arm, triangle connecting lever, oil bumper and sluice separating spring.
Preferably, said interlocking device is equipped with valve gear, alignment pin, tooth bar, lock pin, ground connection transmission crank arm, ground connection main shaft and valve power transmission shaft.
Preferably, said earthed switch unit is dismantled and assembled modular earthed switch, and earthed switch links into an integrated entity through the fastening bolt and the framework of earthed switch.
The utility model technology has following advantage and effect with respect to prior art:
1, the utility model is combined into a new-type element to on-load switch, isolating switch and earthed switch, solves in the current metal enclosed switchgear each element and independently installs, the complicacy of interlocking, drawback that can not seamless link.
2, the utility model has substituted SF
6Greenhouse gas adopt vacuum extinction and epoxy resin external insulation, make to cut-off making capability and insulation property are much higher than SF
6The on-load switch of arc extinguishing.
3, the utility model is designed to have the Direct Action Type isolating switch of visual fracture, adopts air insulation when insulating contact separates up and down, and no organic insulator connects between contact, has avoided reducing because of condensation the risk of insulation, and security performance is high.
4, the utility model adopts the epoxy resin technology packet, when improving the primary circuit insulation property, has reached compact conformation, miniaturization and non-maintaining good result.
5, the dismantled and assembled earthed switch of the utility model employing modularization is implemented under the specified making current and stands twice
The E1 level electric life that close the pass, and realize long-life, the premium properties of high reliability and easy access.
Description of drawings
Fig. 1 is the side structure sketch map of the utility model;
Fig. 2 is the front sectional structure sketch map of the utility model.
Fig. 3 is the operating mechanism structural representation of the utility model.
Fig. 4 is interlocking device's structural representation of the utility model.
The drawing reference numeral explanation:
1, Disconnecting switch unit;
2, framework;
3, load switching unit;
4, earthed switch unit;
5, operating mechanism;
6, pole;
7, earthed switch fastening bolt;
8, go up outlet;
9, vacuum interrupter;
10, moving contact;
11, outlet down;
12, isolating switch supporting seat;
13, insulating support;
14, fixed contact;
15, interlocking device;
16, drive rod;
17, drive connecting lever;
18, support is won in succession;
19, transmission is won in succession;
20, output toggle arm;
21, triangle connecting lever;
22, oil bumper;
23, sluice separating spring;
24, valve gear;
25, alignment pin;
26, tooth bar;
27, lock pin;
28, ground connection transmission crank arm;
29, ground connection main shaft;
30, valve power transmission shaft.
Embodiment
Below in conjunction with embodiment and accompanying drawing the utility model is described in further detail, but the execution mode of the utility model is not limited thereto.
Embodiment
Present embodiment is a kind of high-voltage alternating composite type vacuum load switch; Load switching unit 3; Arrange before and after the major loop three-phase of Disconnecting switch unit 1 and earthed switch unit 4, be connected in series, and be combined into one through the solid encapsulation technique of epoxy resin; Interlocking device 15 realizes the operating sequence and the chain function of regulation, specifically describes as follows:
Like Fig. 1, shown in Figure 2, high-voltage alternating composite type vacuum load switch comprises load switching unit 3, Disconnecting switch unit 1, earthed switch unit 4 and interlocking device 15; Said load switching unit 3, Disconnecting switch unit 1, earthed switch unit 4 and interlocking device 15 all are assemblied on the same framework 2; The primary conductive part of said load switching unit 3 and the primary conductive moving contact of Disconnecting switch unit 1 combine to seal insulation technology admittedly; The fixed contact 14 of the primary conductive of Disconnecting switch unit 1 and cover type insulating cylinder thereof are arranged separately on the framework 2, and the moving contact of isolating switch 1 and fixed contact 14 form air insulation at interval.The other end of the pole 6 of load switching unit 3 and the fixed contact of earthed switch unit 4 are installed on the insulating support 13 through busbar jointly, are combined into one.
Said Disconnecting switch unit 1 is arranged on the top of load switching unit 3; The fixed contact 14 of Disconnecting switch unit 1 is installed in the cover type insulating cylinder; The moving contact 10 of Disconnecting switch unit 1 is installed on the left end of pole 6, the moving contact of Disconnecting switch unit 1 rectilinear motion about in the of 10.
Said load switching unit 3 is equipped with vacuum interrupter 9; The vacuum interrupter 9 of load switching unit 3 is sealed by epoxy resin admittedly, and vacuum interrupter 9 quiet ends are combined into an integral body through the moving contact 10 of last outlet 8 and Disconnecting switch unit 1, and last outlet 8 and Disconnecting switch unit 1 moving contact 10 is connected through fingertip.The vacuum interrupter 9 of said load switching unit 3, upward outlet 8, following outlet 11 and isolating switch supporting seat 12 usefulness epoxy resin are packaged into one, form airtight pole 6.The last outlet 8 of load switching unit 3 realizes electrically connecting with spring touch finger with the moving contact 10 of Disconnecting switch unit 1, and moving contact 10 can move up and down.Following outlet 11 1 ends of said load switching unit 3 and vacuum interrupter 9 are realized electrically connecting with spring touch finger simultaneously, and the other end is installed busbar and earthed switch unit 10 is combined into one.On-load switch vacuum interrupter 9 substitutes SF with solid epoxy
6Gas arc extinguishing and insulation solve divide-shut brake extinguish arcs and the problem that realizes the external insulation miniaturization, and present embodiment belongs to middle pressure field, arranges before and after the switchgear three-phase, and operating mechanism 5 is convenient to control and overhaul up front.Respectively going up mutually of three-phase major loop, be furnished with Direct Action Type Disconnecting switch unit 1, load switching unit 3 and earthed switch unit 4 respectively from top to bottom.Each mutually on the serial connection electrical equipment all adopt solid epoxy to seal combination; Making switchgear have height cut-offs to close and closes performance and good insulation performance performance; Compact conformation, advantage such as actuating is reasonable, and installation volume is little, security performance good, reliability is high, the time between overhauls(TBO) is long.
Said earthed switch 4 is a detachable module formula earthed switch, and earthed switch 4 links into an integrated entity through earthed switch fastening bolt 7 and framework 2.
The stationary contact of said earthed switch unit 4 and load switching unit 3 leading-out terminals are combined into an integral body through busbar, and the earthed switch moving contact is the disconnecting link form.The fixed contact of earthed switch unit 4 and on-load switch vacuum interrupter 9 composition galvanic circles, the major loop three-phase is installed on the framework independently of one another, and earthed switch unit 4 adopts dismantled and assembled modular organization to be installed on the framework.
As shown in Figure 3, the operating mechanism 5 of said load switching unit 3 is equipped with drive rod 16, drive connecting lever 17, support win 18 in succession, transmission wins 19 in succession, output toggle arm 20, triangle connecting lever 21, oil bumper 22, sluice separating spring 23.Feed motion: through the energy of combined floodgate dropout associated mechanisms release combined floodgate spring, drive triangle connecting lever 21 and output toggle arm 20 interlocks, rotate counterclockwise; Output toggle arm 20 promotes transmissions and wins 19 in succession, and drive rod 16 is won in succession in transmission and 19 won in succession under 18 actings in conjunction to left movement with support, and drive rod 16 drives and drives connecting levers 17 actions; Drive connecting lever 17 the moving contact of Motion Transmission to vacuum interrupter 9, contact closure, meanwhile; Sluice separating spring 23 compressed energy-storages; Support roller on the triangle connecting lever 21 is pressed on the dropout semiaxis, makes transmission mechanism remain on closing position, accomplishes feed motion.The separating brake action: electronic release or manual force rotate the dropout semiaxis; Triangle connecting lever 21 clockwise rotates with output toggle arm 20; Drive rod 16 moves right under the acting in conjunction of sluice separating spring 23 and vacuum interrupter 9 contact pressures; Drive connecting lever 17 and clockwise rotate, the roller that drives on the connecting lever 17 is pressed on the oil bumper 22, accomplishes the separating brake action.
As shown in Figure 4, said interlocking device 15 is equipped with valve gear 24, alignment pin 25, tooth bar 26, lock pin 27, ground connection transmission crank arm 28, ground connection main shaft 29, valve power transmission shaft 30.Fig. 4 is isolating switch combined floodgate, earthed switch separating brake, valve open mode; At this moment earthed switch can not close a floodgate; Diagram lock pin 27 pins tooth bar 26 and makes its akinesia; Actively then ground connection transmission crank arm 28 is inactive for tooth bar 26, ground connection transmission crank arm 28 not actively then ground connection main shaft 29 can not rotate, earthed switch pins and can not close a floodgate.When the isolating switch separating brake, lock pin 27 rotates and gets out of the way locked position, earthed switch release; Earthed switch closes a floodgate, and ground connection main shaft 29 drives ground connection transmission crank arm 28 and clockwise rotates, and tooth bar 26 is action downwards under the condition of alignment pin 25 location; Tooth bar 26 drives valve gear 24 and rotates, and valve gear 24 drives valve power transmission shaft 30 and rotates, and valve is closed; Accomplish landing operation, state at this moment is that isolating switch separating brake, earthed switch close a floodgate, valve is closed.At this moment lock pin 27 is pressed in the projection position of tooth bar 26, and isolating switch can not close a floodgate.
The foregoing description be the utility model preferred embodiment; But the execution mode of the utility model is not restricted to the described embodiments; Other any do not deviate from change, the modification done under spirit and the principle of the utility model, substitutes, combination, simplify; All should be the substitute mode of equivalence, be included within the protection range of the utility model.
Claims (9)
1. high-voltage alternating composite type vacuum load switch; Comprise Disconnecting switch unit (1), load switching unit (3), earthed switch unit (4) and interlocking device (15); It is characterized in that, said Disconnecting switch unit, load switching unit, earthed switch unit, interlocking device according to the instructions for use combine and assemble on same framework (2); The primary conductive part of said load switching unit and the moving contact of Disconnecting switch unit primary conductive combine with solid envelope and fingertip structure; Fixed contact of said Disconnecting switch unit primary conductive (14) and cover type insulating cylinder thereof are arranged separately on the framework, and the moving contact of Disconnecting switch unit and fixed contact (14) form air insulation at interval; The lower end of the pole of said load switching unit (6) and the fixed contact of earthed switch unit are installed on the insulating support (13) through busbar jointly, are combined into one.
2. high-voltage alternating composite type vacuum load switch according to claim 1; It is characterized in that; The vacuum interrupter (9) of said load switching unit (3), upward outlet (8), following outlet (11) and isolating switch supporting seat (12) are packaged into one with epoxy resin, form airtight pole (6).
3. high-voltage alternating composite type vacuum load switch according to claim 1; It is characterized in that; The last outlet (8) of said load switching unit (3) realizes electrically connecting with spring touch finger with the moving contact (10) of Disconnecting switch unit (1), and moving contact (10) can move up and down.
4. high-voltage alternating composite type vacuum load switch according to claim 1; It is characterized in that; Following outlet (11) one ends of said load switching unit (3) and vacuum interrupter (9) are realized electrically connecting with spring touch finger, and the other end is installed busbar and earthed switch unit (10) are combined into one.
5. high-voltage alternating composite type vacuum load switch according to claim 1; It is characterized in that; Said Disconnecting switch unit (1) is arranged on the top of load switching unit (3); The fixed contact (14) of Disconnecting switch unit (1) is installed in the cover type insulating cylinder, and the moving contact (10) of Disconnecting switch unit (1) is installed on the left end of pole (6).
6. high-voltage alternating composite type vacuum load switch according to claim 1 is characterized in that said load switching unit (3) is vacuum extinction.
7. high-voltage alternating composite type vacuum load switch according to claim 1; It is characterized in that the operating mechanism (5) of said load switching unit (3) is equipped with drive rod (16), drives connecting lever (17), support is won in succession (18), transmission is won in succession (19), output toggle arm (20), triangle connecting lever (21), oil bumper (22) and sluice separating spring (23).
8. high-voltage alternating composite type vacuum load switch according to claim 1; It is characterized in that said interlocking device (15) is equipped with valve gear (24), alignment pin (25), tooth bar (26), lock pin (27), ground connection transmission crank arm (28), ground connection main shaft (29) and valve power transmission shaft (30).
9. high-voltage alternating composite type vacuum load switch according to claim 1; It is characterized in that; Said earthed switch unit (4) is dismantled and assembled modular earthed switch, and earthed switch (4) links into an integrated entity with framework (2) through the fastening bolt (7) of earthed switch.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220347615 CN202633154U (en) | 2012-07-17 | 2012-07-17 | High-voltage alternating-current combined type vacuum load switch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220347615 CN202633154U (en) | 2012-07-17 | 2012-07-17 | High-voltage alternating-current combined type vacuum load switch |
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| Publication Number | Publication Date |
|---|---|
| CN202633154U true CN202633154U (en) | 2012-12-26 |
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ID=47386315
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220347615 Expired - Fee Related CN202633154U (en) | 2012-07-17 | 2012-07-17 | High-voltage alternating-current combined type vacuum load switch |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202633154U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103219666A (en) * | 2013-05-08 | 2013-07-24 | 北京京东方真空电器有限责任公司 | Modular solid insulation ring network cabinet |
| CN112309760A (en) * | 2020-10-23 | 2021-02-02 | 陕西宇光电气有限公司 | Miniaturized high-insulation load switch fuse combined electrical apparatus |
| CN120809515A (en) * | 2025-09-12 | 2025-10-17 | 宁波天安智能电网科技股份有限公司 | Combined switch equipment |
-
2012
- 2012-07-17 CN CN 201220347615 patent/CN202633154U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103219666A (en) * | 2013-05-08 | 2013-07-24 | 北京京东方真空电器有限责任公司 | Modular solid insulation ring network cabinet |
| CN103219666B (en) * | 2013-05-08 | 2017-01-25 | 北京京东方真空电器有限责任公司 | Modular solid insulation ring network cabinet |
| CN112309760A (en) * | 2020-10-23 | 2021-02-02 | 陕西宇光电气有限公司 | Miniaturized high-insulation load switch fuse combined electrical apparatus |
| CN120809515A (en) * | 2025-09-12 | 2025-10-17 | 宁波天安智能电网科技股份有限公司 | Combined switch equipment |
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20121226 Termination date: 20170717 |