CN111817198A - Environment-friendly insulating ring main unit - Google Patents
Environment-friendly insulating ring main unit Download PDFInfo
- Publication number
- CN111817198A CN111817198A CN202010660456.6A CN202010660456A CN111817198A CN 111817198 A CN111817198 A CN 111817198A CN 202010660456 A CN202010660456 A CN 202010660456A CN 111817198 A CN111817198 A CN 111817198A
- Authority
- CN
- China
- Prior art keywords
- isolation
- static contact
- main unit
- ring main
- grounding
- 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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Classifications
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02B—BOARDS, SUBSTATIONS OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
- H02B13/00—Arrangement of switchgear in which switches are enclosed in, or structurally associated with, a casing, e.g. cubicle
- H02B13/02—Arrangement of switchgear in which switches are enclosed in, or structurally associated with, a casing, e.g. cubicle with metal casing
- H02B13/035—Gas-insulated switchgear
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02B—BOARDS, SUBSTATIONS OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
- H02B13/00—Arrangement of switchgear in which switches are enclosed in, or structurally associated with, a casing, e.g. cubicle
- H02B13/02—Arrangement of switchgear in which switches are enclosed in, or structurally associated with, a casing, e.g. cubicle with metal casing
- H02B13/035—Gas-insulated switchgear
- H02B13/0354—Gas-insulated switchgear comprising a vacuum switch
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02B—BOARDS, SUBSTATIONS OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
- H02B13/00—Arrangement of switchgear in which switches are enclosed in, or structurally associated with, a casing, e.g. cubicle
- H02B13/02—Arrangement of switchgear in which switches are enclosed in, or structurally associated with, a casing, e.g. cubicle with metal casing
- H02B13/035—Gas-insulated switchgear
- H02B13/055—Features relating to the gas
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Gas-Insulated Switchgears (AREA)
Abstract
The invention discloses an environment-friendly insulating ring main unit, which comprises: the device comprises an air box, an ejection sleeve, an arc extinguish chamber, an isolation static contact, an operating mechanism, an isolation-grounding switch, a grounding static contact, a lower branch bus, a lower outlet sleeve pressing plate and a shell, wherein the air box is arranged in the shell; the gas box is filled with heptafluoroisobutyronitrile-air mixed gas; the ejection sleeve penetrates through the upper plane of the gas box and then is connected with the arc extinguish chamber, and the arc extinguish chamber is arranged in the gas box; the isolation static contact is connected with the operating mechanism; one end of the isolation-grounding switch is connected with the isolation static contact, and the other end of the isolation-grounding switch is connected with the grounding static contact; the lower branch bus and the lower outlet sleeve are arranged in the lower outlet sleeve pressing plate, and the operating mechanism is connected with the lower branch bus.
Description
Technical Field
The invention relates to the field of power equipment, in particular to an environment-friendly insulating ring main unit.
Background
In the current power supply network system in China, in order to improve the power supply reliability, the power supply network is usually connected into a ring shape, so that a user can obtain power supplies from two directions, and the power supply mode is called ring network power supply. The ring main unit is a core switch device in a ring network power supply device, and is divided into an air ring main unit, an SF6 gas insulation ring main unit, a solid insulation ring main unit and the like according to different insulation media.
The existing gas insulation ring main unit mainly adopts sulfur hexafluoride (SF)6)，SF6Is a highly stable chemical propertyThe gas has excellent insulating and arc extinguishing performance and is widely applied to gas-insulated electrical equipment. But SF6At the same time, the green house effect is a gas with higher green house effect, and the green house effect potential value (GWP) of the gas is CO223500 times of that of the active ingredient, and the survival life in the atmosphere is 3200 years. In 1997, the book of Kyoto protocol has specifically recognized SF6The gas is one of 6 kinds of gas which is used in the world in a limited way, and developed countries are required to freeze the emission of greenhouse gases to the level of 90 years in the 20 th century first, and the SF is required to be basically limited by 20206The use of a gas. Along with the more serious environmental pollution in recent years, the requirements of people on environmental protection are higher and higher, and the market fills SF6The requirement of the inflatable ring main unit is gradually decreased year by year.
Therefore, how to design an environment-friendly insulated ring main unit becomes a problem to be solved urgently.
Disclosure of Invention
The invention provides an environment-friendly insulating ring main unit, which aims to solve the problem that the existing ring main unit is not environment-friendly.
The invention provides an environment-friendly insulating ring main unit, which comprises: gas tank, ejecting sleeve pipe, explosion chamber, isolation static contact, operating mechanism, isolation-earthing switch, ground connection static contact, lower branch generating line, go out the sleeve pipe down, go out sleeve pipe clamp plate and shell down, wherein:
the air box is arranged in the shell;
the gas box is filled with heptafluoroisobutyronitrile-air mixed gas;
the ejection sleeve penetrates through the upper plane of the gas box and then is connected with the arc extinguish chamber, and the arc extinguish chamber is arranged in the gas box;
the isolation static contact is connected with the operating mechanism;
one end of the isolation-grounding switch is connected with the isolation static contact, and the other end of the isolation-grounding switch is connected with the grounding static contact;
the lower branch bus and the lower outlet sleeve are both arranged in the lower outlet sleeve pressing plate, the operating mechanism is connected with the lower branch bus, and the lower branch bus is connected with the lower outlet sleeve;
the isolation static contact, the isolation-grounding switch, the grounding static contact, the lower branch bus and the lower casing are all arranged in the shell.
Optionally, the environment-friendly insulating ring main unit further comprises a fracture observation window, and the fracture observation window is arranged in the middle of the air box.
Optionally, the gas tank is a sealed tank body.
Optionally, the volume ratio of heptafluoroisobutyronitrile to air in the heptafluoroisobutyronitrile-air mixed gas is 39: 61.
Optionally, the inflation pressure of the heptafluoroisobutyronitrile-air mixed gas is 0.095 MPa.
Optionally, the isolation-grounding switch is a three-position isolation grounding switch.
The invention provides an environment-friendly insulating ring main unit, which comprises: the device comprises an air box, an ejection sleeve, an arc extinguish chamber, an isolation static contact, an operating mechanism, an isolation-grounding switch, a grounding static contact, a lower branch bus, a lower outlet sleeve pressing plate and a shell, wherein the air box is arranged in the shell; the gas box is filled with heptafluoroisobutyronitrile-air mixed gas; the ejection sleeve penetrates through the upper plane of the gas box and then is connected with the arc extinguish chamber, and the arc extinguish chamber is arranged in the gas box; the isolation static contact is connected with the operating mechanism; one end of the isolation-grounding switch is connected with the isolation static contact, and the other end of the isolation-grounding switch is connected with the grounding static contact; the lower branch bus and the lower outlet sleeve are both arranged in the lower outlet sleeve pressing plate, the operating mechanism is connected with the lower branch bus, and the lower branch bus is connected with the lower outlet sleeve; the isolation static contact, the isolation-grounding switch, the grounding static contact, the lower branch bus and the lower outlet sleeve are all arranged in the shell.
Drawings
In order to more clearly illustrate the technical solution of the present invention, the drawings needed to be used in the embodiments will be briefly described below, and it is obvious to those skilled in the art that other drawings can be obtained according to the drawings without any inventive exercise.
Fig. 1 is a schematic structural diagram of an environment-friendly insulating ring main unit according to the present invention;
fig. 2 is a side view of the environment-friendly insulating ring main unit provided by the invention.
Illustration of the drawings:
wherein, 1-a gas tank; 2-ejecting the sleeve; 3-an arc extinguishing chamber; 4-isolating the static contact; 5-operating mechanism; 6-isolation-grounding switch; 7-a grounded static contact; 8-lower branch bus; 9-discharging the sleeve; 10-discharging a sleeve pressing plate; 11-fracture observation window; 12-outer shell.
Detailed Description
The technical solutions in the embodiments of the present invention are clearly and completely described below with reference to the drawings in the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention, but the present invention may be practiced in other ways than those specifically described, and it will be appreciated by those skilled in the art that the present invention may be embodied without departing from the spirit and scope of the invention, and therefore the present invention is not limited to the specific embodiments disclosed below.
Referring to fig. 1 and 2, the present invention provides an environment-friendly insulating ring main unit, which is suitable for high-altitude areas, and includes: gas tank 1, ejecting sleeve pipe 2, explosion chamber 3, keep apart static contact 4, operating mechanism 5, keep apart-earthing switch 6, grounding static contact 7, lower branch bus 8, go out sleeve pipe 9 down, go out sleeve pipe clamp plate 10 and shell 12 down, wherein:
the air box 1 is arranged in the shell 12;
the gas box 1 is filled with heptafluoroisobutyronitrile-air mixed gas;
the ejection sleeve 2 penetrates through the upper plane of the gas box 1 and then is connected with the arc extinguish chamber 3, and the arc extinguish chamber 3 is arranged in the gas box 1; the ring main unit can realize the expansion function through the ejection sleeve 2, and the top of the shell 12 can be provided with an expansion connector or a connecting bus to be electrically connected with other functional units, so that any combination of various schemes can be realized.
The isolation static contact 4 is connected with the operating mechanism 5, and the operating mechanism 5 has the same structure as that of the existing insulating ring main unit;
one end of the isolation-ground switch 6 is connected with the isolation static contact 4, and the other end of the isolation-ground switch 6 is connected with the ground static contact 7;
the lower branch bus 8 and the lower outlet sleeve 9 are both arranged in the lower outlet sleeve pressing plate 10, the operating mechanism 5 is connected with the lower branch bus 8, and the lower branch bus 8 is connected with the lower outlet sleeve 9;
the isolation static contact 4, the isolation-grounding switch 6, the grounding static contact 7, the lower branch bus 8 and the lower casing 9 are all arranged in the housing 12.
The environment-friendly insulating ring main unit comprises a vacuum arc extinguish chamber 3, an isolation grounding switch chamber and a cable chamber, and adopts a common box type structure, a primary loop is sealed in a gas box 1, a switch tube of an isolation-grounding switch 6 is arranged in the vacuum arc extinguish chamber 3, and the isolation grounding switch chamber is also sealed in the gas box 1.
Optionally, the environment-friendly insulating ring main unit further comprises a fracture observation window 11, the fracture observation window 11 is arranged in the middle of the air box 1, and the fracture observation window 11 is separated from the cable chamber by a metal isolation plate.
Optionally, the gas tank 1 is a sealed tank body, and the gas tank 1 is a stainless steel tank body.
Optionally, the volume ratio of heptafluoroisobutyronitrile to air in the heptafluoroisobutyronitrile-air mixed gas is 39: 61.
Optionally, the inflation pressure of the heptafluoroisobutyronitrile-air mixed gas is 0.095 MPa.
Optionally, the isolating-grounding switch 6 is a three-station isolating-grounding switch, the number of the isolating fixed contact 4 and the number of the grounding fixed contacts 7 correspond to the stations of the isolating-grounding switch 6, and the ring main unit has position indication of the three-station isolating-grounding switch, state indication of the circuit breaker and energy storage state indication; the shell protection grade of the ring main unit reaches IP 4X.
This insulating looped netowrk cabinet of environment-friendly is provided with chain subassembly, and chain subassembly is through the chain board completion to the interlock that has the three-station isolation earthing switch of interlocking subassembly itself.
The maximum altitude of the Yunnan Lijiang area is about 2500 meters, and the absolute atmospheric pressure is 74.671 KPa; the structural strength of the ring main unit can bear the relative pressure of 20KPa, so that the ring main unit can normally operate in the Yunnan Lijiang area with the altitude of 2500 m at most by the design of the maximum structural strength which can be borne when the ring main unit is filled with the environment-friendly gas with the pressure of 95 KPa.
The environment-friendly insulating ring main unit provided by the invention has an electric opening and closing function and also has a grounding closing function; in addition, the environment-friendly insulating ring main unit provided by the invention has the advantages of small floor area and high protection level, is suitable for operation in high-altitude areas and the like, and is convenient to maintain and install.
The invention provides an environment-friendly insulating ring main unit, which comprises: the device comprises an air box 1, an ejection sleeve 2, an arc extinguish chamber 3, an isolation static contact 4, an operating mechanism 5, an isolation-grounding switch 6, a grounding static contact 7, a lower branch bus 8, a lower outlet sleeve 9, a lower outlet sleeve pressure plate 10 and a shell 12, wherein the air box 1 is arranged in the shell 12; the gas box 1 is filled with heptafluoroisobutyronitrile-air mixed gas; the ejection sleeve 2 penetrates through the upper plane of the gas box 1 and then is connected with the arc extinguish chamber 3, and the arc extinguish chamber 3 is arranged in the gas box 1; the isolation static contact 4 is connected with the operating mechanism 5; one end of the isolation-ground switch 6 is connected with the isolation static contact 4, and the other end of the isolation-ground switch 6 is connected with the ground static contact 7; the lower branch bus 8 and the lower outlet sleeve 9 are both arranged in the lower outlet sleeve pressing plate 10, the operating mechanism 5 is connected with the lower branch bus 8, and the lower branch bus 8 is connected with the lower outlet sleeve 9; the isolation static contact 4, the isolation-grounding switch 6, the grounding static contact 7, the lower branch bus 8 and the lower bushing 9 are all arranged in the shell 12, the environment-friendly insulating ring main unit provided by the invention has the effect of protecting the environment by taking heptafluoroisobutyronitrile-air mixed gas as an insulating medium, and the environment-friendly insulating ring main unit has a small floor area.
The foregoing is merely a detailed description of the invention, and it should be noted that modifications and adaptations by those skilled in the art may be made without departing from the principles of the invention, and should be considered as within the scope of the invention.
Claims (6)
1. The utility model provides an insulating looped netowrk cabinet of environment-friendly, its characterized in that, insulating looped netowrk cabinet of environment-friendly includes gas tank (1), ejecting sleeve pipe (2), explosion chamber (3), keeps apart static contact (4), operating mechanism (5), keeps apart-earthing switch (6), ground connection static contact (7), lower branch generating line (8), goes out sleeve pipe (9) down, goes out sleeve pipe clamp plate (10) and shell (12) down, wherein:
the air box (1) is arranged in the shell (12);
the gas tank (1) is filled with heptafluoroisobutyronitrile-air mixed gas;
the ejection sleeve (2) penetrates through the upper plane of the gas box (1) and then is connected with the arc-extinguishing chamber (3), and the arc-extinguishing chamber (3) is arranged in the gas box (1);
the isolation static contact (4) is connected with the operating mechanism (5);
one end of the isolation-grounding switch (6) is connected with the isolation static contact (4), and the other end of the isolation-grounding switch (6) is connected with the grounding static contact (7);
the lower branch bus (8) and the lower outlet sleeve (9) are both arranged in the lower outlet sleeve pressing plate (10), the operating mechanism (5) is connected with the lower branch bus (8), and the lower branch bus (8) is connected with the lower outlet sleeve (9);
the isolation static contact (4), the isolation-grounding switch (6), the grounding static contact (7), the lower branch bus (8) and the lower outlet sleeve (9) are all arranged in the shell (12).
2. The environmental-friendly insulated ring main unit according to claim 1, further comprising a fracture observation window (11), wherein the fracture observation window (11) is disposed in the middle of the air box (1).
3. The environmental protection type insulated ring main unit according to claim 1, wherein the air box (1) is a sealed box.
4. The environment-friendly insulating ring main unit according to claim 1, wherein a volume ratio of heptafluoroisobutyronitrile to air in the heptafluoroisobutyronitrile-air mixed gas is 39: 61.
5. The environmental protection type insulated ring main unit according to claim 1, wherein the inflation pressure of the heptafluoroisobutyronitrile-air mixed gas is 0.095 MPa.
6. The environmental-friendly insulated ring main unit according to claim 1, wherein the isolating-grounding switch (6) is a three-position isolating-grounding switch.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010660456.6A CN111817198A (en) | 2020-07-10 | 2020-07-10 | Environment-friendly insulating ring main unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010660456.6A CN111817198A (en) | 2020-07-10 | 2020-07-10 | Environment-friendly insulating ring main unit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111817198A true CN111817198A (en) | 2020-10-23 |
Family
ID=72841685
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010660456.6A Pending CN111817198A (en) | 2020-07-10 | 2020-07-10 | Environment-friendly insulating ring main unit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111817198A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114976982A (en) * | 2022-04-25 | 2022-08-30 | 北京清畅电力技术股份有限公司 | Multi-functional two isolator equipment of environmental protection gas insulation |
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| KR100938883B1 (en) * | 2009-01-21 | 2010-01-27 | 경인엔지니어링 주식회사 | Distributing board of compartment structure having partial-discharge diagnosis function |
| CN203260945U (en) * | 2013-04-27 | 2013-10-30 | 石家庄科林电气设备有限公司 | Solid insulation ring main unit visible from both sides of fracture |
| CN104798274A (en) * | 2012-09-10 | 2015-07-22 | 阿尔斯通技术有限公司 | Medium- or high-voltage electrical appliance having a low environmental impact and hybrid insulation |
| CN105119183A (en) * | 2015-09-28 | 2015-12-02 | 上海攀森电气设备有限公司 | Nitrogen insulation annular net cabinet |
| CN205178367U (en) * | 2015-11-20 | 2016-04-20 | 长园电力技术有限公司 | Canned type air insulation goes out wire sleeve |
| CN106415960A (en) * | 2014-05-21 | 2017-02-15 | 三菱电机株式会社 | Circuit breaker with arc eliminator and power receiving/distributing equipment using same |
| DE102016212333A1 (en) * | 2016-07-06 | 2018-01-11 | Siemens Aktiengesellschaft | Detectable switching gas mixture |
| CN108831587A (en) * | 2012-04-04 | 2018-11-16 | 3M创新有限公司 | Fluorination nitrile as dielectric gaseous |
| CN111211515A (en) * | 2020-01-10 | 2020-05-29 | 广东电网有限责任公司电力科学研究院 | Arc extinguishing and/or insulating electrical equipment |
-
2020
- 2020-07-10 CN CN202010660456.6A patent/CN111817198A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100938883B1 (en) * | 2009-01-21 | 2010-01-27 | 경인엔지니어링 주식회사 | Distributing board of compartment structure having partial-discharge diagnosis function |
| CN108831587A (en) * | 2012-04-04 | 2018-11-16 | 3M创新有限公司 | Fluorination nitrile as dielectric gaseous |
| CN104798274A (en) * | 2012-09-10 | 2015-07-22 | 阿尔斯通技术有限公司 | Medium- or high-voltage electrical appliance having a low environmental impact and hybrid insulation |
| CN203260945U (en) * | 2013-04-27 | 2013-10-30 | 石家庄科林电气设备有限公司 | Solid insulation ring main unit visible from both sides of fracture |
| CN106415960A (en) * | 2014-05-21 | 2017-02-15 | 三菱电机株式会社 | Circuit breaker with arc eliminator and power receiving/distributing equipment using same |
| CN105119183A (en) * | 2015-09-28 | 2015-12-02 | 上海攀森电气设备有限公司 | Nitrogen insulation annular net cabinet |
| CN205178367U (en) * | 2015-11-20 | 2016-04-20 | 长园电力技术有限公司 | Canned type air insulation goes out wire sleeve |
| DE102016212333A1 (en) * | 2016-07-06 | 2018-01-11 | Siemens Aktiengesellschaft | Detectable switching gas mixture |
| CN111211515A (en) * | 2020-01-10 | 2020-05-29 | 广东电网有限责任公司电力科学研究院 | Arc extinguishing and/or insulating electrical equipment |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114976982A (en) * | 2022-04-25 | 2022-08-30 | 北京清畅电力技术股份有限公司 | Multi-functional two isolator equipment of environmental protection gas insulation |
| CN114976982B (en) * | 2022-04-25 | 2023-01-10 | 北京清畅电力技术股份有限公司 | Multi-functional two isolator equipment of environmental protection gas insulation |
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| 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: 20201023 |
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| RJ01 | Rejection of invention patent application after publication |