CN109727807A - Dry air type disconnecting switch - Google Patents
Dry air type disconnecting switch Download PDFInfo
- Publication number
- CN109727807A CN109727807A CN201811532127.2A CN201811532127A CN109727807A CN 109727807 A CN109727807 A CN 109727807A CN 201811532127 A CN201811532127 A CN 201811532127A CN 109727807 A CN109727807 A CN 109727807A
- Authority
- CN
- China
- Prior art keywords
- isolation
- gas tank
- inner cone
- lead screw
- guiding
- 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.)
- Pending
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Abstract
The invention discloses a kind of dry air type disconnecting switch, it includes three sub switchs, each sub switch includes interrupter, grounding base, lead screw, isolation guiding, conductive casings and isolation support, lead screw, isolation guiding, conductive casings and isolation support are respectively positioned in gas tank, grounding base is installed on gas tank foreboard, one end of lead screw extends to outside gas tank after passing through grounding base and is fixedly connected with interrupter, the other end of lead screw is located in isolation guiding, isolation is directed through the first inner cone and is fixed on the bottom plate of gas tank, screw thread is equipped with conductive casings on lead screw, isolation support is fixed in the back plate of gas tank by the second inner cone, grounding base, fingertip is equipped in isolation guiding and isolation support, isolation support is connect by conducting wire with bus, the both ends of bus pass through third inner cone respectively and are fixed on two opposite side plates of gas tank.Its purpose is to provide a kind of environmentally friendly, at low cost, small in size dry air type disconnecting switch.
Description
Technical field
The present invention relates to a kind of electrical equipments, more particularly to a kind of disconnecting switch.
Background technique
40.5kV disconnecting switch in the market is mostly the gas isolated air-box type switch of SF6, fills certain gas in gas tank
The SF6 gas of pressure.SF6 gas itself is greenhouse gases, and not environmentally, the influence to atmospheric environment is bad, and its price is also expensive.
There are also being partially without the disconnecting switch of the air-insulated type of gas tank, volume is relatively very big, and occupied area is too many, and transport is not
It is convenient.
Summary of the invention
The technical problem to be solved in the present invention is to provide a kind of environmentally friendly, at low cost, small in size dry air types to keep apart
It closes.
Dry air type disconnecting switch of the present invention, including three sub switchs, each sub switch include interrupter, ground connection
Seat, lead screw, isolation guiding, conductive casings and isolation support, the lead screw, isolation guiding, conductive casings and the isolation equal position of support
In in gas tank, the grounding base fixation is located on the foreboard of the gas tank, and the grounding base is connected with grounding copper bar, the lead screw
One end pass through and extend to that gas tank is outer and be fixedly connected with the interrupter, and the other end of the lead screw is located at institute after grounding base
It states in isolation guiding, the isolation is directed through the first inner cone and is fixed on the bottom plate of gas tank, and screw thread is equipped on the lead screw
The conductive casings, the isolation support are fixed in the back plate of gas tank by the second inner cone, the grounding base, isolation guiding and
Fingertip is equipped in isolation support, and the isolation support passes through conducting wire and connect with bus, and the both ends of the bus pass through the respectively
Three inner cones are fixed on two opposite side plates of gas tank.
Dry air type disconnecting switch of the present invention, wherein close by silicon rubber between isolation guiding and the first inner cone
Envelope, passes through silicone rubber seal between the isolation support and the second inner cone.
Dry air type disconnecting switch of the present invention, wherein the conducting wire is copper rod, the periphery of the copper rod is coated with silicon rubber
Glue.
Dry air type disconnecting switch of the present invention, wherein the mounting means of the fingertip are as follows: the grounding base, isolation guiding
It is equipped with fingertip slot with the inside of isolation support, the fingertip fixation is located in the fingertip slot.
Dry air type disconnecting switch of the present invention, wherein first inner cone, the second inner cone and third inner cone include leading
Electric part and insulator, the insulator is interior to be equipped with through hole, and the conduct piece is fixed in the through hole.
Dry air type disconnecting switch difference from prior art of the present invention is that the present invention is driven by interrupter
Lead screw rotation, and then keep conductive casings for linear motion along lead screw, when conductive casings move to and the fingertip in being oriented to is isolated
When contact, switch is in isolation "on" position, and when conductive casings move in isolation guiding, switch is in isolation separating brake shape
State, when conductive casings, which are moved to, to be contacted with the fingertip in grounding base, switch is in earthing position.
The present invention will be further explained below with reference to the attached drawings.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of dry air type disconnecting switch of the present invention；
Fig. 2 is the structure sectional view of dry air type disconnecting switch of the present invention；
Fig. 3 is the right view of Fig. 1；
Fig. 4 is the rearview of Fig. 1.
Specific embodiment
As shown in Figure 1, and combine Fig. 2-4 shown in, dry air type disconnecting switch of the present invention include three sub switchs, each
Sub switch includes interrupter 1, grounding base 2, lead screw 3, isolation guiding 4, conductive casings 6 and support 7 is isolated, the lead screw 3,
Isolation guiding 4, conductive casings 6 and isolation support 7 are respectively positioned in gas tank 12, and the fixation of grounding base 2 is located at the gas tank 12
On foreboard, the grounding base 2 is connected with grounding copper bar, and one end of the lead screw 3 extends to outside gas tank 12 simultaneously after passing through grounding base 2
It is fixedly connected with the interrupter 1, the other end of the lead screw 3 is located in isolation guiding 4, and the isolation guiding 4 is logical
It crosses the first inner cone 5 to be fixed on the bottom plate of gas tank 12, screw thread is equipped with the conductive casings 6, the isolation branch on the lead screw 3
Seat 7 is fixed in the back plate of gas tank 12 by the second inner cone 8, is equipped in the grounding base 2, isolation guiding 4 and isolation support 7
Fingertip, the isolation support 7 are connect by conducting wire 11 with bus 10, and it is solid that the both ends of the bus 10 pass through third inner cone 9 respectively
It is scheduled on two opposite side plates of gas tank 12.
Dry air type disconnecting switch of the present invention, wherein close by silicon rubber between isolation guiding 4 and the first inner cone 5
Envelope, passes through silicone rubber seal between the isolation support 7 and the second inner cone 8.
Dry air type disconnecting switch of the present invention, wherein the conducting wire 11 is copper rod, the periphery of the copper rod is coated with silicon
Rubber.
Dry air type disconnecting switch of the present invention, wherein the mounting means of the fingertip are as follows: the grounding base 2, isolation are led
It is equipped with fingertip slot to the inside of 4 and isolation support 7, the fingertip fixation is located in the fingertip slot.
Dry air type disconnecting switch of the present invention, wherein first inner cone 5, the second inner cone 8 and third inner cone 9 include
Conduct piece and insulator, the insulator is interior to be equipped with through hole, and the conduct piece is fixed in the through hole.
The present invention drives lead screw 3 to rotate by interrupter 1, and then keeps conductive casings 6 for linear motion along lead screw 3,
When conductive casings 6, which are moved to, to be contacted with the fingertip being isolated in guiding 4, switch is in isolation "on" position, when conductive casings 6 are transported
When moving in isolation guiding 4, switch is contacted when conductive casings 6 are moved to the fingertip in grounding base 2 in isolation gate-dividing state
When, switch is in earthing position.
The overall structure of switch is fixed in gas tank 12, and gas tank 12 is a closing stainless steel sheet metal structural, internal
Dry air is filled, air pressure is depending on application environment.Threephase switch is emitted on side by side in gas tank 12, and structure is consistent.Interrupter 1
It drives lead screw 3 to rotate, and then drives conductive casings 6 for linear motion.
The structure of isolation guiding 4 is made of the first insulating materials 41 and the first conduct piece 42.First inner cone 5, the second inner cone 8
It is also made of the second insulating materials 52 and the second conduct piece 51 with third inner cone 9, three inner cone structures are consistent.Support 7 is isolated
Structure be made of third insulating materials 71 and third conduct piece 72.Wherein the first conduct piece 42 and third conduct piece 72 are equipped with
Fingertip slot, fingertip is placed in the inside and conductive casings 6 are formed and are conductively connected.
By the analysis of electric field and associate power structure knowledge to construction of switch links, total is optimized,
Phase spacing is reduced, traditional more three group structures are broken.Wherein isolation guiding 4 and isolation support 7 are fixed on inner cone 5 and inner cone
Reason on 8 is to carry out simultaneously cabinet, and installation bus PT with killer switch.A corresponding with copper rod 11, B phase copper rod
Structure also determined according to the result of electrical distance and analysis of electric field.The width of entire disconnecting switch is 760, a height of 831, and depth is
952, it has a margin in volume.Traditional installation blast resistance construction is arranged in upper plate.
Advantages of the present invention is as follows:
1, isolation knife is direct dynamic structure, is closed a floodgate, the position of separating brake all determines during installation, and there is no combined floodgates to connect
Touch empty possibility.
2, entire switch is designed with cylindrical structure, link position all encapsulation process, so that entire electric field is more uniform,
And preferably save space.
3, disconnecting switch overall volume is much smaller relative to the switch of traditional air insulation, reduces occupied area.
4, dry air replaces SF6 gas as insulation environment, reduces pollution of the SF6 to air, more environmentally-friendly, meets
The requirement of sustainable development.
5, the price of dry air is far below the price of SF6 gas, reduces the cost of switch.
6, relative to common 0.02 atmospheric pressure of SF6 gas and higher air pressure, disconnecting switch air pressure inside can
To be normal pressure or slightly positive pressure, reduces the deformation of gas tank 12, reduce the unstability of switch, and more safe.
7, disconnecting switch is independent switch, is all to separate with killer switch and other types switch, facilitates whole
The maintenance or replacement of body switchgear.
Embodiment described above only describe the preferred embodiments of the invention, not to model of the invention
It encloses and is defined, without departing from the spirit of the design of the present invention, those of ordinary skill in the art are to technical side of the invention
The various changes and improvements that case is made should all be fallen into the protection scope that claims of the present invention determines.
Claims (5)
1. a kind of dry air type disconnecting switch, it is characterised in that: including three sub switchs, each sub switch includes isolation machine
Structure, grounding base, lead screw, isolation guiding, conductive casings and isolation support, the lead screw, isolation guiding, conductive casings and isolation branch
Seat is respectively positioned in gas tank, and the grounding base fixation is located on the foreboard of the gas tank, and the grounding base is connected with grounding copper bar, institute
The one end for stating lead screw extends to outside gas tank after grounding base and is fixedly connected with the interrupter, the other end of the lead screw
In isolation guiding, the isolation is directed through the first inner cone and is fixed on the bottom plate of gas tank, screw thread on the lead screw
The conductive casings are installed, the isolation support is fixed in the back plate of gas tank by the second inner cone, the grounding base, isolation
It is equipped with fingertip in guiding and isolation support, the isolation support is connect by conducting wire with bus, the both ends difference of the bus
It is fixed on two opposite side plates of gas tank by third inner cone.
2. dry air type disconnecting switch according to claim 1, it is characterised in that: the isolation guiding and the first inner cone
Between by silicone rubber seal, pass through silicone rubber seal between the isolation support and the second inner cone.
3. dry air type disconnecting switch according to claim 2, it is characterised in that: the conducting wire is copper rod, the copper
The periphery of stick is coated with silicon rubber.
4. dry air type disconnecting switch according to claim 3, it is characterised in that: the mounting means of the fingertip are as follows:
The inside of the grounding base, isolation guiding and isolation support is equipped with fingertip slot, and the fingertip fixation is located in the fingertip slot.
5. dry air type disconnecting switch according to claim 4, it is characterised in that: first inner cone, the second inner cone
Include conduct piece and insulator with third inner cone, is equipped with through hole in the insulator, the conduct piece is fixed at institute
It states in through hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811532127.2A CN109727807A (en) | 2018-12-14 | 2018-12-14 | Dry air type disconnecting switch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811532127.2A CN109727807A (en) | 2018-12-14 | 2018-12-14 | Dry air type disconnecting switch |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109727807A true CN109727807A (en) | 2019-05-07 |
Family
ID=66296006
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811532127.2A Pending CN109727807A (en) | 2018-12-14 | 2018-12-14 | Dry air type disconnecting switch |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109727807A (en) |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201758095U (en) * | 2010-08-13 | 2011-03-09 | 北京清畅电力技术股份有限公司 | Direct-acting type isolating switch |
| CN102013354A (en) * | 2010-12-29 | 2011-04-13 | 常州森源力拓开关有限公司 | Three-station isolating switch |
| CN202111407U (en) * | 2010-08-23 | 2012-01-11 | 沈阳华利能源设备制造有限公司 | Dry air insulated metal enclosed switchgear |
| CN203070998U (en) * | 2013-02-04 | 2013-07-17 | 乐星湖开电气（湖北）有限公司 | Ball screw transmitted three-position isolation grounding switch |
| CN203607314U (en) * | 2013-12-06 | 2014-05-21 | 江苏大全长江电器股份有限公司 | Over-position protection device for direct-acting three-position isolating switch |
| CN204967114U (en) * | 2015-08-19 | 2016-01-13 | 广东华德力电气有限公司 | Aerify cabinet isolator air chamber |
| CN107732754A (en) * | 2017-11-27 | 2018-02-23 | 上海天灵开关厂有限公司 | A kind of gas-filling cabinet with bus inserting function |
| CN207587609U (en) * | 2017-12-28 | 2018-07-06 | 宁波耐森电气科技有限公司 | A kind of direct-acting three-working-position isolation |
| CN207818451U (en) * | 2017-12-27 | 2018-09-04 | 甘肃长城电工电器工程研究院有限公司 | A kind of direct-acting three-working-position isolation |
-
2018
- 2018-12-14 CN CN201811532127.2A patent/CN109727807A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201758095U (en) * | 2010-08-13 | 2011-03-09 | 北京清畅电力技术股份有限公司 | Direct-acting type isolating switch |
| CN202111407U (en) * | 2010-08-23 | 2012-01-11 | 沈阳华利能源设备制造有限公司 | Dry air insulated metal enclosed switchgear |
| CN102013354A (en) * | 2010-12-29 | 2011-04-13 | 常州森源力拓开关有限公司 | Three-station isolating switch |
| CN203070998U (en) * | 2013-02-04 | 2013-07-17 | 乐星湖开电气（湖北）有限公司 | Ball screw transmitted three-position isolation grounding switch |
| CN203607314U (en) * | 2013-12-06 | 2014-05-21 | 江苏大全长江电器股份有限公司 | Over-position protection device for direct-acting three-position isolating switch |
| CN204967114U (en) * | 2015-08-19 | 2016-01-13 | 广东华德力电气有限公司 | Aerify cabinet isolator air chamber |
| CN107732754A (en) * | 2017-11-27 | 2018-02-23 | 上海天灵开关厂有限公司 | A kind of gas-filling cabinet with bus inserting function |
| CN207818451U (en) * | 2017-12-27 | 2018-09-04 | 甘肃长城电工电器工程研究院有限公司 | A kind of direct-acting three-working-position isolation |
| CN207587609U (en) * | 2017-12-28 | 2018-07-06 | 宁波耐森电气科技有限公司 | A kind of direct-acting three-working-position isolation |
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| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20190507 |
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| RJ01 | Rejection of invention patent application after publication |