CN111130002B - Be applied to conical sleeve in cabinet combining of environmental protection gas cabinet - Google Patents
Be applied to conical sleeve in cabinet combining of environmental protection gas cabinet Download PDFInfo
- Publication number
- CN111130002B CN111130002B CN201911179195.XA CN201911179195A CN111130002B CN 111130002 B CN111130002 B CN 111130002B CN 201911179195 A CN201911179195 A CN 201911179195A CN 111130002 B CN111130002 B CN 111130002B
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- annular groove
- bus
- cabinet
- sleeve
- insulator
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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
- H02B1/00—Frameworks, boards, panels, desks, casings; Details of substations or switching arrangements
- H02B1/20—Bus-bar or other wiring layouts, e.g. in cubicles, in switchyards
-
- 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
- H02B13/0358—Connections to in or out conductors
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Insulating Bodies (AREA)
Abstract
A combined cabinet inner taper sleeve applied to an environment-friendly gas cabinet comprises a sleeve conductive rod, an insulator, a combined cabinet bus, a bus conductive rod, a watchband contact finger and a buffer; the two insulators are bilaterally symmetrical and are respectively arranged on the left side and the right side of the panel of the environment-friendly gas cabinet, a plurality of umbrella skirts are arranged on the peripheral wall of each insulator along the axis direction of the insulator, the cabinet combining bus is arranged between the two insulators, the bus conducting rod is arranged in the cabinet combining bus and the two insulators, the sleeve conducting rod is attached to the outer wall of the bus conducting rod through a watchband contact finger, and the buffers are arranged between the two end parts of the bus conducting rod and the two sleeve conducting rods respectively. The invention has the advantages of simple structure, stability, reliability, large creepage distance, small partial discharge, tight sealing, quick heat dissipation and good electrical performance.
Description
Technical Field
The invention relates to an environment-friendly gas cabinet, in particular to a combined cabinet inner taper sleeve applied to a 12kV/1250A environment-friendly gas cabinet.
Background
The good living environment is the root for our survival, and with the global warming in recent years and the continuous emergence of extreme weather, we are aware that the environment should be protected. Protecting environment, reducing carbon dioxide emission, and reducing emission of other harmful gases, SF6Is one of them. However, more than 60% of the distribution equipment in the distribution industry relies on SF6Gas-insulated, SF6The gas, once leaked, causes an almost irreversible contamination of the surrounding environment, and therefore, SF6The gas insulated switchgear is to be replaced by an irreversible proposition, which needs to be solved urgently and is not slow.
Therefore, the solid cabinet and the environment-friendly gas (dry air) cabinet are continuously replaced by the technical personnel in the industry, the solid cabinet is mature day by day, the environment-friendly gas cabinet, especially the environment-friendly gas cabinet with high current is still in the research and development and trial stage, and the application is an important part of the high-current environment-friendly gas cabinet. At present, an inner taper sleeve is also provided, but the electrical properties such as partial discharge, insulation and the like are not ideal, so that the stability performance is poor in practical use, and therefore, the inner taper sleeve needs to be improved technically.
Disclosure of Invention
The technical problem to be solved by the invention is to provide the combined inner taper sleeve applied to the environment-friendly gas cabinet, which has the advantages of simple structure, stability, reliability and good electrical performance.
The technical scheme of the invention is that the combined cabinet inner taper sleeve applied to the environment-friendly gas cabinet is provided with the following structure, and comprises a sleeve conductive rod, an insulator, a combined cabinet bus, a bus conductive rod, a watchband contact finger and a buffer; the two insulators are arranged symmetrically left and right, the two insulators are respectively arranged on the left side and the right side of the panel of the environment-friendly gas cabinet, and a sealing ring is arranged between each insulator and the panel; one end of each insulator, which is close to the panel, is provided with a conical cavity, the large-diameter end of each conical cavity faces the panel, and the outer peripheral wall of each insulator is provided with a plurality of umbrella skirts along the axis direction of the insulator; the cabinet combination bus is arranged between the two insulators, the left part and the right part of the cabinet combination bus are respectively provided with a conical section matched with the two conical cavities, the conical section is provided with a cylindrical cavity along the axis direction of the conical section, and a communication cavity is arranged on the cabinet combination bus between the two cylindrical cavities; the number of the sleeve conducting rods is two, one ends of the two sleeve conducting rods are respectively positioned in the two cylindrical cavities, the other ends of the two sleeve conducting rods respectively penetrate through the two insulators and then are exposed outside, and the insulators are in threaded connection with the sleeve conducting rods; the sleeve conducting rod positioned in the cylindrical cavity is provided with an installation cavity along the axis direction of the sleeve conducting rod, the middle part of the bus conducting rod is positioned in the communication cavity, and two ends of the bus conducting rod are respectively positioned in the two installation cavities; watchband contact fingers are arranged in step holes formed in the peripheral walls of the two mounting cavities and are attached to the outer wall of the bus conducting rod; and buffers are arranged between the two end parts of the bus conducting rod and the two sleeve conducting rods respectively.
The combined inner taper sleeve applied to the environment-friendly gas cabinet is characterized in that a first annular groove, a second annular groove, a third annular groove, a fourth annular groove and an annular step are formed in the outer peripheral wall of each insulator from the end close to the panel to the end far from the panel along the axis direction of the insulator, the diameters of the first annular groove, the second annular groove, the third annular groove and the fourth annular groove gradually decrease from the end close to the panel to the end far from the panel, and the diameter of the annular step is equal to that of the first annular groove; a first umbrella skirt is formed between the first annular groove and the second annular groove, a second umbrella skirt is formed between the second annular groove and the third annular groove, a third umbrella skirt is formed between the third annular groove and the fourth annular groove, and a fourth umbrella skirt is formed between the fourth annular groove and the annular step; the diameters of the second umbrella skirt and the fourth umbrella skirt are equal to the diameter of the insulator, and the diameters of the first umbrella skirt and the third umbrella skirt are equal to 0.9 times of the diameter of the insulator.
The combined inner taper sleeve applied to the environment-friendly gas cabinet, disclosed by the invention, is characterized in that the outer wall of the sleeve conducting rod is provided with a silver coating.
After the structure is adopted, compared with the prior art, the combined cabinet inner taper sleeve applied to the environment-friendly gas cabinet has the following advantages: the invention adopts a structure comprising two sleeve conductive rods, insulators, a combined bus, bus conductive rods, watchband contact fingers and buffers, wherein the two insulators are bilaterally symmetrical and are respectively arranged on the left side and the right side of a panel of the environment-friendly gas cabinet, a plurality of umbrella skirts are arranged on the peripheral wall of each insulator along the axis direction of the insulator, the combined bus is arranged between the two insulators, the bus conductive rods are arranged in the combined bus and the two insulators, the sleeve conductive rods are attached to the outer walls of the bus conductive rods through the watchband contact fingers, the buffers are respectively arranged between the two ends of the bus conductive rods and the two sleeve conductive rods, and through the reasonable structural design, the combined bus can be smoothly arranged on the environment-friendly gas cabinet, is stable and reliable in working, has good electrical performance and provides guarantee for safe and reliable power supply of a cabinet body.
Drawings
FIG. 1 is a top view of a cone sleeve inside a cabinet for an environmental gas cabinet according to the present invention;
FIG. 2 is a sectional structural view taken along line "A-A" in FIG. 1;
fig. 3 is a left side view structural diagram of fig. 2.
Detailed Description
The combined inner taper sleeve applied to the environment-friendly gas cabinet of the invention is further described in detail with reference to the accompanying drawings and the specific implementation mode:
as shown in fig. 1, fig. 2 and fig. 3, in the present embodiment, the combined inner cone sleeve applied to an environmental protection gas cabinet includes a sleeve conductive rod 11, an insulator 12, a combined bus bar 13, a bus bar conductive rod 15, a watch band contact finger 14 and a buffer 16. The insulators 12 are made of epoxy resin materials, and are arranged symmetrically left and right; the two insulators 12 are respectively installed at the left and right sides of the environmental protection gas cabinet panel 20, and a sealing ring 17 is arranged between the insulators 12 and the panel 20.
The end of each insulator 12 close to the panel 20 is provided with a tapered cavity 126, the large diameter end of the tapered cavity 126 faces the panel 20, and the outer peripheral wall of the insulator 12 is provided with a plurality of sheds along the axis direction thereof.
The cabinet combination bus 13 is arranged between the two insulators 12, the left part and the right part of the cabinet combination bus 13 are respectively provided with a conical section 133 matched with the two conical cavities 126, the conical section 133 is provided with a cylindrical cavity 131 along the axis direction, and a communication cavity 132 is arranged on the cabinet combination bus 13 between the two cylindrical cavities 131.
The number of the sleeve conducting rods 11 is two, one end of each of the two sleeve conducting rods 11 is located in each of the two cylindrical cavities 131, the other end of each of the two sleeve conducting rods 11 is exposed outside after penetrating through the two insulators 12, and the insulators 12 are in threaded connection with the sleeve conducting rods 11.
The bushing conducting rod 11 located in the cylindrical cavity 131 is provided with an installation cavity 111 along the axis direction, the middle of the bus conducting rod 15 is located in the communicating cavity 132, and two ends of the bus conducting rod 15 are located in the two installation cavities 111 respectively.
Step holes arranged on the peripheral walls of the two mounting cavities 111 are internally provided with watchband contact fingers 14, and the watchband contact fingers 14 are attached to the outer wall of the bus conducting rod 15 to realize elastic contact connection; buffers 16 are respectively arranged between the two ends of the bus bar conductive rod 15 and the two sleeve conductive rods 11. The structure enables the bus conducting rod 15 not to be in elastic connection with the watchband contact finger 14, and the bottom surface of the mounting cavity 111 of the sleeve conducting rod 11 is in perfect contact with the bottom surface of the buffer 16, so that the partial discharge of the sleeve conducting rod 11 is very good and far lower than the national standard requirement value, the service life of the insulating part is fully prolonged, and the safe and reliable operation of the environment-friendly gas cabinet is guaranteed.
The watchband contact fingers 14 are commercially available products and have the characteristics of good elasticity, large flow guide capacity and the like; the buffer 16 installed between the bus bar conductor 15 and the bushing conductor 11 is also a commercially available product, and can make the end faces of the two conductor fully contact with each other, thereby avoiding the damage of the bushing conductor 11 caused by uneven stress during installation. The outer wall of the sleeve conducting rod 11 is provided with a silver coating, so that the sleeve conducting rod has good conducting performance.
The two ends of the sleeve conductive rod 11 are designed into different shapes, mainly to make the sleeve conductive rod firmly contact with the insulator 12 in the using process so as to improve the conductive performance.
The peripheral wall of each insulator 12 is provided with a first annular groove 12-1, a second annular groove 12-2, a third annular groove 12-3, a fourth annular groove 12-4 and an annular step 12-5 in sequence along the axis direction from the end close to the panel 20 to the end far from the panel 20. The diameters of the first annular groove 12-1, the second annular groove 12-2, the third annular groove 12-3 and the fourth annular groove 12-4 are gradually reduced from the end close to the panel 20 to the end far from the panel 20, and the diameter of the annular step 12-5 is equal to the diameter of the first annular groove 12-1. The cross sections of the first annular groove to the fourth annular groove are of inverted trapezoidal structures, and the bottoms of the first annular groove and the fourth annular groove are rounded.
A first umbrella skirt 121 is formed between the first annular groove 12-1 and the second annular groove 12-2, a second umbrella skirt 122 is formed between the second annular groove 12-2 and the third annular groove 12-3, a third umbrella skirt 123 is formed between the third annular groove 12-3 and the fourth annular groove 12-4, and a fourth umbrella skirt 124 is formed between the fourth annular groove 12-4 and the annular step 12-5. The second shed 122 and the fourth shed 124 each have a diameter equal to the diameter of the insulator 12; the first shed 121 and the third shed 123 have the same diameter, and are each 0.9 times the diameter of the insulator 12. The cross sections of the first umbrella skirt to the fourth umbrella skirt are both in a trapezoidal structure, and the outer ring of the first umbrella skirt is chamfered.
The annular groove and the umbrella skirt of the structure are designed, so that the creepage distance of a product can be effectively increased.
Through the reasonable structural design, the gas cabinet can be smoothly installed on an environment-friendly gas cabinet, and the safe and reliable power supply of the cabinet body is guaranteed. In addition, the cabinet is optimally designed according to the structure, the using condition, the combination economy, the using environment and other factors of the cabinet body, has the characteristics of attractive and elegant appearance, good conductivity, large creepage distance, small partial discharge, tight sealing, quick heat dissipation, safety, reliability and the like, has simple mold design, convenient demolding, excellent insulating property, good using and popularization values and the like.
The combined cabinet inner taper sleeve is mainly designed according to specific applications and with reference to EN50181 and DIN47636, and meets various performance (mechanical and electrical performance) indexes of use.
The above-mentioned embodiments are merely illustrative of the preferred embodiments of the present invention, and do not limit the scope of the present invention, and various modifications and improvements of the technical solutions of the present invention by those skilled in the art should fall within the protection scope of the present invention without departing from the design spirit of the present invention.
Claims (2)
1. The utility model provides a be applied to awl sleeve pipe in cabinet combination of environmental protection gas cabinet which characterized in that: the combined cabinet comprises a sleeve conductive rod (11), an insulator (12), a combined cabinet bus (13), a bus conductive rod (15), a watchband contact finger (14) and a buffer (16);
the two insulators (12) are arranged in a bilateral symmetry mode, the two insulators (12) are respectively installed on the left side and the right side of a panel (20) of the environment-friendly gas cabinet, and a sealing ring (17) is arranged between each insulator (12) and the panel (20);
one end of each insulator (12) close to the panel (20) is provided with a conical cavity (126), the large-diameter end of each conical cavity (126) faces the panel (20), and the peripheral wall of each insulator (12) is provided with a plurality of umbrella skirts along the axis direction of the insulator;
the cabinet combination bus (13) is arranged between the two insulators (12), the left part and the right part of the cabinet combination bus (13) are respectively provided with a conical section (133) matched with the two conical cavities (126), the conical section (133) is provided with a cylindrical cavity (131) along the axis direction, and a communication cavity (132) is arranged on the cabinet combination bus (13) between the two cylindrical cavities (131);
the number of the sleeve conductive rods (11) is two, one ends of the two sleeve conductive rods (11) are respectively positioned in the two cylindrical cavities (131), the other ends of the two sleeve conductive rods (11) respectively penetrate through the two insulators (12) and then are exposed outside, and the insulators (12) are in threaded connection with the sleeve conductive rods (11);
the sleeve conducting rod (11) positioned in the cylindrical cavity (131) is provided with mounting cavities (111) along the axis direction, the middle part of the bus conducting rod (15) is positioned in the communicating cavity (132), and two ends of the bus conducting rod (15) are respectively positioned in the two mounting cavities (111);
watchband contact fingers (14) are arranged in step holes formed in the peripheral walls of the two mounting cavities (111), and the watchband contact fingers (14) are attached to the outer wall of the bus conducting rod (15);
buffers (16) are respectively arranged between the two end parts of the bus conducting rod (15) and the two sleeve conducting rods (11);
a first annular groove (12-1), a second annular groove (12-2), a third annular groove (12-3), a fourth annular groove (12-4) and an annular step (12-5) are formed in the peripheral wall of each insulator (12) from the end close to the panel (20) to the end far away from the panel (20) along the axis direction of the insulator, the diameters of the first annular groove (12-1), the second annular groove (12-2), the third annular groove (12-3) and the fourth annular groove (12-4) gradually decrease from the end close to the panel (20) to the end far away from the panel (20), and the diameter of the annular step (12-5) is equal to that of the first annular groove (12-1);
a first umbrella skirt (121) is formed between the first annular groove (12-1) and the second annular groove (12-2), a second umbrella skirt (122) is formed between the second annular groove (12-2) and the third annular groove (12-3), a third umbrella skirt (123) is formed between the third annular groove (12-3) and the fourth annular groove (12-4), and a fourth umbrella skirt (124) is formed between the fourth annular groove (12-4) and the annular step (12-5);
the diameters of the second shed (122) and the fourth shed (124) are equal to the diameter of the insulator (12), and the diameters of the first shed (121) and the third shed (123) are equal to 0.9 times the diameter of the insulator (12).
2. The cabinet combining inner taper sleeve applied to the environment-friendly gas cabinet as claimed in claim 1, wherein: and a silver coating is arranged on the outer wall of the sleeve conductive rod (11).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911179195.XA CN111130002B (en) | 2019-11-27 | 2019-11-27 | Be applied to conical sleeve in cabinet combining of environmental protection gas cabinet |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911179195.XA CN111130002B (en) | 2019-11-27 | 2019-11-27 | Be applied to conical sleeve in cabinet combining of environmental protection gas cabinet |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN111130002A CN111130002A (en) | 2020-05-08 |
| CN111130002B true CN111130002B (en) | 2022-04-12 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911179195.XA Active CN111130002B (en) | 2019-11-27 | 2019-11-27 | Be applied to conical sleeve in cabinet combining of environmental protection gas cabinet |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111130002B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116979281B (en) * | 2023-09-25 | 2024-01-19 | 国网山西省电力公司长治供电公司 | Cabinet combining device and method for switching on high-voltage switch cabinet without power failure |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101373890A (en) * | 2008-06-27 | 2009-02-25 | 上海市电力公司 | Busbar connection device |
| CN102324632A (en) * | 2011-06-15 | 2012-01-18 | 西安西能电器新技术发展有限公司 | Bus connector for cabinet type gas-insulated metal-enclosed switchgear |
| CN203225492U (en) * | 2013-05-22 | 2013-10-02 | 深圳市惠程电气股份有限公司 | Built-in bus connecting structure for combined cabinet |
| CN203871662U (en) * | 2014-05-29 | 2014-10-08 | 厦门兴厦控电气有限公司 | Busbar connector |
| CN206595433U (en) * | 2016-12-30 | 2017-10-27 | 镇江丹高电力科技有限公司 | Bus tie |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH04112602A (en) * | 1990-09-01 | 1992-04-14 | Fuji Electric Co Ltd | Bus supporting structure for switchboard |
| CN102447226A (en) * | 2010-10-15 | 2012-05-09 | 常熟市通润开关厂有限公司 | Bus connector in GIS (Gas Insulated Switchgear) |
| CN209561666U (en) * | 2019-04-12 | 2019-10-29 | 浙江开盛电气有限公司 | A kind of sideways expansion bus-bar insulator |
-
2019
- 2019-11-27 CN CN201911179195.XA patent/CN111130002B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101373890A (en) * | 2008-06-27 | 2009-02-25 | 上海市电力公司 | Busbar connection device |
| CN102324632A (en) * | 2011-06-15 | 2012-01-18 | 西安西能电器新技术发展有限公司 | Bus connector for cabinet type gas-insulated metal-enclosed switchgear |
| CN203225492U (en) * | 2013-05-22 | 2013-10-02 | 深圳市惠程电气股份有限公司 | Built-in bus connecting structure for combined cabinet |
| CN203871662U (en) * | 2014-05-29 | 2014-10-08 | 厦门兴厦控电气有限公司 | Busbar connector |
| CN206595433U (en) * | 2016-12-30 | 2017-10-27 | 镇江丹高电力科技有限公司 | Bus tie |
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| Publication number | Publication date |
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| CN111130002A (en) | 2020-05-08 |
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