CN101728781B - Solid isolated vacuum ring main unit - Google Patents
Solid isolated vacuum ring main unit Download PDFInfo
- Publication number
- CN101728781B CN101728781B CN2009102425749A CN200910242574A CN101728781B CN 101728781 B CN101728781 B CN 101728781B CN 2009102425749 A CN2009102425749 A CN 2009102425749A CN 200910242574 A CN200910242574 A CN 200910242574A CN 101728781 B CN101728781 B CN 101728781B
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- switch unit
- unit
- isolation switch
- operating mechanism
- vacuum
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- 239000007787 solid Substances 0.000 title claims abstract description 14
- 238000002955 isolation Methods 0.000 claims abstract description 46
- 239000003822 epoxy resin Substances 0.000 claims abstract description 6
- 229920000647 polyepoxide Polymers 0.000 claims abstract description 6
- 238000009413 insulation Methods 0.000 claims description 8
- 231100000252 nontoxic Toxicity 0.000 abstract description 5
- 230000003000 nontoxic effect Effects 0.000 abstract description 5
- 238000007789 sealing Methods 0.000 abstract description 4
- 238000000926 separation method Methods 0.000 abstract 1
- 230000000694 effects Effects 0.000 description 3
- 230000005611 electricity Effects 0.000 description 2
- 238000011109 contamination Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 230000005283 ground state Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
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Abstract
The present invention discloses a solid isolated vacuum ring main unit, comprising a high-pressure compartment, wherein the high-pressure compartment is provided with an isolation switch unit, a vacuum load switch unit and a fuse unit. A main bus-bar is connected with an outlet cable through the isolation switch unit, the vacuum load switch unit and the fuse unit. The vacuum load switch unit is fixedly sealed and isolated by adopting epoxy resin. The solid isolated vacuum ring main unit further comprises a mechanism box, wherein the mechanism box is provided with an isolation switch operating mechanism and a vacuum load switch operating mechanism; the isolation switch operating mechanism is connected with an isolator of the isolation switch unit for driving the isolator to move up and down, thereby realizing the separation and combination of the isolation switch unit. The solid isolated vacuum ring main unit has the advantages of small volume, is suitable for various indoor and outdoor bad operating environments and is nontoxic and pollution-free; the ring main unit body does not need sealing, and does not have the dangerous of air leakage.
Description
Technical field
The present invention relates to a kind of urban electricity supply network ring main unit, relate in particular to a kind of solid isolated vacuum ring main unit.
Background technology
Present urban electricity supply network mainly adopts the ring network power supply pattern, and the ring network power supply pattern can improve the reliability of power supply, and the user can obtain power supply from two ends, the power failure area of minimizing accident; Ring main unit is exactly the medium-voltage equipment that is used for ring network power supply, and its core is exactly on-load switch and on-load switch a---fuse combined electric apparatus, have simple in structure, volume is little, price is low, can improve power supply parameter and advantages such as performance and power supply safety.
The ring main unit of prior art is divided into two kinds of air insulation and SF6 gas-insulateds:
Air-insulated ring main unit, it is made up of low-voltage compartment and high pressure compartment; Low-voltage compartment the inside some secondary meters of main dress and control protection component etc.; High pressure compartment the inside is provided with elements such as isolating switch, on-load switch, fuse and earthed switch;
The gas isolated ring main unit of SF6 adopts hermetically sealed, all insulation, is specially adapted to outdoor more abominable environment for use, and is as shown in Figure 1, is the structural representation of the gas isolated ring main unit of a kind of SF6 of the prior art, and it is made up of gas tank 01 and outer case 02; There are on-load switch 04, fuse 05 and outlet sleeve pipe 06 in gas tank 01 the inside; On-load switch 04 adopts SF6 as arc-extinguishing medium, is filled with the SF6 gas of certain pressure in the gas tank 01; High-tension current by main bus bar to on-load switch 04, again by on-load switch 04 to fuse 05, then by fuse 5 to outlet sleeve pipe 06; Operating mechanism 03 is housed on the on-load switch 04, and the contact on the branch of operating mechanism 03, the resultant motion drive on-load switch 04 rotates and reaches the ability of disjunction, making current; On-load switch 04 is three stations, and ground state makes the outlet part reliable ground in whole loop, guarantees personal safety; The reliable mechanical interlocking is arranged between on-load switch 04 and the cabinet cable door.
There is following shortcoming at least in above-mentioned prior art:
The shortcoming of air insulation ring main unit is: bigger, the anti-pollution ability of volume is weak, limited by environment for use, mainly installs and uses in indoor;
The shortcoming of the gas isolated ring main unit of SF6 is: SF6 gaseous contamination environment, not environmental protection; Seal request to cabinet is high, gas leakage is prone to accidents.
Summary of the invention
The purpose of this invention is to provide a kind of volume little, be fit to indoor external environment, nontoxic, pollution-free, cabinet not needs seal, safe solid isolated vacuum ring main unit.
The objective of the invention is to realize through following technical scheme:
Solid isolated vacuum ring main unit of the present invention; Comprise the high pressure compartment; Be provided with isolation switch unit, vacuum load switch unit, fuse unit in the said high pressure compartment, main bus bar is connected with the outlet cable through said isolation switch unit, vacuum load switch unit, fuse unit successively;
Said vacuum load switch unit adopts epoxy resin to seal insulation admittedly.
Technical scheme by the invention described above provides can be found out; Solid isolated vacuum ring main unit of the present invention; Owing to be provided with isolation switch unit, vacuum load switch unit, fuse unit in the high pressure compartment, main bus bar is connected with the outlet cable through isolation switch unit, vacuum load switch unit, fuse unit successively; The vacuum load switch unit adopts epoxy resin to seal insulation admittedly.Cabinet does not need sealing, little, the suitable indoor external environment, nontoxic, pollution-free, safe of volume
Description of drawings
Fig. 1 is the structural representation of the gas isolated ring main unit of SF6 in the prior art;
Fig. 2 is the structural representation of the specific embodiment of solid isolated vacuum ring main unit of the present invention.
Embodiment
Solid isolated vacuum ring main unit of the present invention, its preferable embodiment is:
Comprise the high pressure compartment, be provided with isolation switch unit, vacuum load switch unit, fuse unit in the high pressure compartment, main bus bar is connected with the outlet cable through said isolation switch unit, vacuum load switch unit, fuse unit successively.The vacuum load switch unit adopts epoxy resin to seal insulation admittedly.
Also comprise mechanism case, be provided with isolation switch operating mechanism and vacuum load switch operating mechanism in the mechanism case, wherein:
The isolation switch operating mechanism is connected with the disconnecting link of isolation switch unit, is used to drive the upper and lower motion of said disconnecting link, realize said isolation switch unit branch, close.
Specifically can be the isolation switch operating mechanism be connected with the bevel gear of the disconnecting link of isolation switch unit through two mutual Vertical Meshing; One of them bevel gear is connected with the horizontal drive bar of said isolation switch operating mechanism; Another bevel gear is connected with vertical screw mandrel; Vertically screw mandrel is engaged with nut, and nut is connected with disconnecting link;
The vacuum load switch operating mechanism is connected with the vacuum interrupter moving contact of vacuum load switch unit, is used to drive the upper and lower motion of vacuum interrupter moving contact, realize said vacuum load switch unit branch, close.
The outlet cable is provided with outlet cable grounding device, is provided with linkage between outlet cable grounding device and the isolation switch unit, is used for realizing:
When the disjunction of said isolation switch unit, said outlet cable grounding device is closed;
When said isolation switch unit is closed, the disjunction of said outlet cable grounding device.
Vacuum load switch operating mechanism, isolation switch operating mechanism, outlet cable grounding device and cable door can be provided with mechanical interlocks each other.
The characteristics of solid isolated vacuum ring main unit of the present invention are:
Volume is little, and a unit overall dimension of specific embodiment can be: (the dark x of wide x is high) 420x700x1300;
Be fit to indoor outer various abominable environments for use;
Nontoxic, pollution-free, belong to environmentally friendly machine;
Cabinet does not need sealing, does not exist gas leakage dangerous.
Specific embodiment, as shown in Figure 2:
Comprise high pressure compartment 1, mechanism case 4, high pressure compartment 1 the inside is provided with isolation switch unit 2, vacuum load switch unit 3, fuse unit 9.Isolation switch unit 2 plays isolation, ground connection and female effect, and load switching unit 3 plays the effect of disjunction load current, and fuse unit 9 plays the short-circuit protection effect.
Also comprise vacuum load switch operating mechanism 5, isolation switch operating mechanism 6, outlet cable 8, outlet unit earthing device 7 etc., outlet unit earthing device 7 plays ground connection outlet cable.
Under the operating state, high-tension current through main bus bar to isolation switch unit 2, again by isolation switch unit 2 to vacuum load switch unit 3, then by vacuum load switch unit 3 to fuse unit 9, then by fuse unit 9 to outlet cable 8; Under the power down mode, isolation switch unit 2 is in the disjunction earthing position, and vacuum load switch unit 3 is in closing position, and outlet cable grounding device 7 is in the combined floodgate earthing position.
The branch of vacuum load switch operating mechanism 5, closing operation drive the purpose that the upper and lower motion of vacuum interrupter moving contact on the vacuum load switch unit 3 reaches disjunction, making current; The upper and lower motion of disconnecting link that the branch of isolation switch operating mechanism 6, closing operation drive isolation switch unit 2 reaches the purpose of isolated high-voltage power supply and uses the line loop reliable ground.
Vacuum load switch operating mechanism 5, isolation switch operating mechanism 6, outlet cable grounding device 7 and cable door have the reliable mechanical interlocking each other.
The present invention adopts epoxy resin as dielectric, and cabinet does not need sealing, is well positioned to meet nontoxic, pollution-free, as to be suitable for indoor outer all kinds of abominable environments for use requirement.All advantages with air insulation ring main unit and SF6 gas-insulated ring main unit; Their all shortcomings have also well been solved simultaneously.Be the direction of following ring main unit development, have good market prospects.
The above; Be merely the preferable embodiment of the present invention, but protection scope of the present invention is not limited thereto, any technical staff who is familiar with the present technique field is in the technical scope that the present invention discloses; The variation that can expect easily or replacement all should be encompassed within protection scope of the present invention.
Claims (2)
1. solid isolated vacuum ring main unit; It is characterized in that; Comprise the high pressure compartment; Be provided with isolation switch unit, vacuum load switch unit, fuse unit in the said high pressure compartment, main bus bar is connected with the outlet cable through said isolation switch unit, vacuum load switch unit, fuse unit successively;
Said vacuum load switch unit adopts epoxy resin to seal insulation admittedly;
Also comprise mechanism case, be provided with isolation switch operating mechanism and vacuum load switch operating mechanism in the said mechanism case;
Said isolation switch operating mechanism is connected with the disconnecting link of said isolation switch unit, is used to drive the upper and lower motion of said disconnecting link, realize said isolation switch unit branch, close;
Said vacuum load switch operating mechanism is connected with the vacuum interrupter moving contact of said vacuum load switch unit, is used to drive the upper and lower motion of said vacuum interrupter moving contact, realize said vacuum load switch unit branch, close;
Said outlet cable is provided with outlet cable grounding device, is provided with linkage between said outlet cable grounding device and the isolation switch unit, is used for realizing:
When the disjunction of said isolation switch unit, said outlet cable grounding device is closed;
When said isolation switch unit is closed, the disjunction of said outlet cable grounding device;
Said vacuum load switch operating mechanism, isolation switch operating mechanism, outlet cable grounding device and cable door are provided with mechanical interlocks each other.
2. solid isolated vacuum ring main unit according to claim 1; It is characterized in that; The disconnecting link of said isolation switch operating mechanism and said isolation switch unit is connected through the bevel gear of two mutual Vertical Meshing, and one of them bevel gear is connected with the horizontal drive bar of said isolation switch operating mechanism, and another bevel gear is connected with vertical screw mandrel; Said vertical screw mandrel is engaged with nut, and said nut is connected with said disconnecting link.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009102425749A CN101728781B (en) | 2009-12-16 | 2009-12-16 | Solid isolated vacuum ring main unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009102425749A CN101728781B (en) | 2009-12-16 | 2009-12-16 | Solid isolated vacuum ring main unit |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101728781A CN101728781A (en) | 2010-06-09 |
| CN101728781B true CN101728781B (en) | 2012-06-13 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009102425749A Active CN101728781B (en) | 2009-12-16 | 2009-12-16 | Solid isolated vacuum ring main unit |
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| Country | Link |
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| CN (1) | CN101728781B (en) |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102227058B (en) * | 2011-03-15 | 2014-10-29 | 广东阿尔派电力科技股份有限公司 | Solid-insulated vacuum ring main unit and system thereof |
| CN102222868B (en) * | 2011-06-22 | 2013-07-24 | 上海正昊电力科技有限公司 | Solid insulating vacuum ring network cabinet |
| CN102290733B (en) * | 2011-08-22 | 2015-04-22 | 宁波耀华电气科技有限责任公司 | Total solid insulating ring network cabinet |
| CN102820626B (en) * | 2012-08-20 | 2015-04-08 | 西安西能电器新技术发展有限公司 | Solid insulation vacuum ring-network cabinet |
| CN106816823B (en) * | 2017-01-11 | 2019-01-29 | 湖南德意电气有限公司 | A kind of solid vacuum insulation ring network cabinet and its manufacturing method |
| CN108134337A (en) * | 2017-12-27 | 2018-06-08 | 上海正昊电力科技有限公司 | Breaker module and the environmentally friendly gas-insulated ring network cabinet for including it |
| CN110768153B (en) * | 2019-11-07 | 2024-06-11 | 清远市新能电力工程有限公司 | Fixed high-voltage ring main unit structure of lower median ground sword |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2750447Y (en) * | 2004-12-10 | 2006-01-04 | 正泰集团成套设备制造有限公司 | Operation mechanism for isolating switch |
| CN200959290Y (en) * | 2006-04-30 | 2007-10-10 | 上海中科电气(集团)有限公司 | Operating mechanical interlocking device against fault for high-voltage circular network cabinet |
| CN101340066A (en) * | 2007-07-05 | 2009-01-07 | 北京双杰配电自动化设备有限公司 | Solid insulating fully enclosed looped network cabinet |
| CN101383241A (en) * | 2007-09-05 | 2009-03-11 | 北京双杰配电自动化设备有限公司 | Solid insulation electricity isolation device |
| CN201289965Y (en) * | 2008-11-07 | 2009-08-12 | 安徽中安恒宇电气传动有限公司 | Looped network cabinet |
-
2009
- 2009-12-16 CN CN2009102425749A patent/CN101728781B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2750447Y (en) * | 2004-12-10 | 2006-01-04 | 正泰集团成套设备制造有限公司 | Operation mechanism for isolating switch |
| CN200959290Y (en) * | 2006-04-30 | 2007-10-10 | 上海中科电气(集团)有限公司 | Operating mechanical interlocking device against fault for high-voltage circular network cabinet |
| CN101340066A (en) * | 2007-07-05 | 2009-01-07 | 北京双杰配电自动化设备有限公司 | Solid insulating fully enclosed looped network cabinet |
| CN101383241A (en) * | 2007-09-05 | 2009-03-11 | 北京双杰配电自动化设备有限公司 | Solid insulation electricity isolation device |
| CN201289965Y (en) * | 2008-11-07 | 2009-08-12 | 安徽中安恒宇电气传动有限公司 | Looped network cabinet |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101728781A (en) | 2010-06-09 |
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Effective date of registration: 20240319 Address after: 410000, Room 401-16, Building 2, Xincheng Science and Technology Park, No. 588 Yuelu West Avenue, Dongfanghong Street, Xiangjiang New District, Changsha City, Hunan Province Patentee after: Hezong Technology Co.,Ltd. Country or region after: Zhong Guo Address before: 100085, D, building 9, Ka Wah building, 1211 3rd Street, Beijing, Haidian District Patentee before: BEIJING HEZONG SCIENCE & TECHNOLOGY Co.,Ltd. Country or region before: Zhong Guo |