CN117613706A - Ring main unit convenient for internal circuit maintenance - Google Patents
Ring main unit convenient for internal circuit maintenance Download PDFInfo
- Publication number
- CN117613706A CN117613706A CN202311556752.1A CN202311556752A CN117613706A CN 117613706 A CN117613706 A CN 117613706A CN 202311556752 A CN202311556752 A CN 202311556752A CN 117613706 A CN117613706 A CN 117613706A
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- CN
- China
- Prior art keywords
- main unit
- ring main
- plates
- sliding
- plate
- 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.)
- Granted
Links
- 238000012423 maintenance Methods 0.000 title claims description 11
- 230000002146 bilateral effect Effects 0.000 claims description 9
- 238000005286 illumination Methods 0.000 description 5
- 238000009434 installation Methods 0.000 description 4
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 230000006978 adaptation Effects 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 229910052755 nonmetal Inorganic materials 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Classifications
-
- 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
- H02B1/26—Casings; Parts thereof or accessories therefor
- H02B1/30—Cabinet-type casings; Parts thereof or accessories therefor
- H02B1/32—Mounting of devices therein
- H02B1/34—Racks
- H02B1/36—Racks with withdrawable units
-
- 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
- H02B1/202—Cable lay-outs
-
- 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
- H02B1/26—Casings; Parts thereof or accessories therefor
- H02B1/30—Cabinet-type casings; Parts thereof or accessories therefor
-
- 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
- H02B1/26—Casings; Parts thereof or accessories therefor
- H02B1/30—Cabinet-type casings; Parts thereof or accessories therefor
- H02B1/32—Mounting of devices therein
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Patch Boards (AREA)
Abstract
The invention discloses a ring main unit convenient for overhauling an internal circuit, which comprises a cabinet body, lower cabinet doors, a mutual inductor, sliding rails, sliding plates, pulling components and the like, wherein the lower part of the front side of the cabinet body is symmetrically provided with two lower cabinet doors capable of being opened in a forward rotating way, the lower parts of the inner walls of the left side and the right side of the cabinet body are respectively connected with the sliding rails, the sliding plates capable of moving forwards and backwards are connected between the two sliding rails in a sliding way, the mutual inductor is arranged at the top of each sliding plate, and the pulling components are arranged between the sliding plates and the lower cabinet doors. When the lower cabinet door is opened in a forward rotating mode, the vertical plate is pulled to move forward through the connecting rod, and the vertical plate moves forward to drive the sliding plate to move forward so as to move the mutual inductor out of the cabinet body, so that an maintainer can overhaul a line outside the cabinet body or replace a cable connector for connecting a cable and the mutual inductor, overhaul of the line can be facilitated, and overhaul efficiency can be improved.
Description
Technical Field
The invention relates to the technical field of power equipment, in particular to a ring main unit convenient for internal circuit overhaul.
Background
The ring main unit is a group of electric equipment (high-voltage switch equipment) which is arranged in a metal or nonmetal insulating cabinet body or is made into an assembled spacing ring main power supply unit, and the core part of the ring main unit adopts a load switch and a fuse, and has the advantages of simple structure, small volume, low price, capability of improving power supply parameters and performance, power supply safety and the like.
In the prior art, a line of a ring main unit is arranged on a transformer, the transformer is fixedly arranged on the rear side of the lower part in the ring main unit, and cannot be removed from the ring main unit, so that when the line is overhauled or a cable connector for connecting a cable with the transformer is replaced, the line is required to be overhauled in the ring main unit, and the inner space of the ring main unit is usually narrow, therefore, the line is overhauled in the ring main unit or the cable connector for connecting the cable with the transformer is very inconvenient to replace, and the overhauling efficiency is low.
Disclosure of Invention
The invention aims to solve the problems and provide the ring main unit which can facilitate the removal of the transformer and the maintenance of the internal circuit.
The invention realizes the above purpose through the following technical scheme: the utility model provides a looped netowrk cabinet convenient to internal circuit overhauls, including the cabinet body, go up cabinet door, lower cabinet door, mutual-inductor and cable joint, the front side upper portion bilateral symmetry of the cabinet body is equipped with two upper cabinet doors that can rotate forward and open, the front side lower part bilateral symmetry of the cabinet body is equipped with two lower cabinet doors that can rotate forward and open, the interval is equipped with the cable joint that is used for connecting the cable on the mutual-inductor, still include the slide rail, slide and pulling subassembly, the lower part of cabinet body left and right sides inner wall all is connected with the slide rail, sliding connection has the slide that can reciprocate between two slide rails, the mutual-inductor is installed at the slide top, be equipped with pulling subassembly between slide and the lower cabinet door, through pulling subassembly pulling slide forward movement when lower cabinet door rotates forward and opens, in order to shift out the mutual-inductor from the cabinet body.
Preferably, the pulling assembly comprises a vertical plate and a connecting rod, the top of the sliding plate is connected with two vertical plates in a bilateral symmetry manner, the upper parts of the two vertical plates are hinged with the connecting rod, and the two connecting rods are respectively hinged with the two lower cabinet doors.
Preferably, the slide bottom bilateral symmetry is connected with two L shaped plates, and the interior top front side of two L shaped plates all is equipped with the connecting plate that can reciprocate, is connected with the splint between the trailing flank of two connecting plates, is connected with the slide bar by left to right interval slidingtype on the splint, is connected with the clamp splice on the slide bar, and the cable can be cliied with the splint cooperation to the clamp splice, is connected with the elastic component between slide bar and the splint.
Preferably, the front side of the connecting plate is connected with a mounting block, a supporting plate capable of rotating up and down is arranged on the mounting block, and the supporting plate can be supported on the ground along with the downward rotation of the connecting plate so as to support the connecting plate.
Preferably, the connecting plate is provided with a jack, one side of the two L-shaped plates, which is opposite, is connected with a guide sleeve, and a bolt which can be inserted into the jack to lock the connecting plate is connected in the guide sleeve in a sliding manner.
Preferably, a rubber anti-slip pad is connected to the bottom of the support plate.
Preferably, an illumination lamp is installed between the upper portions of the two risers.
Preferably, the clamping positions of the clamping blocks and the clamping plates are arc-shaped.
Preferably, arc-shaped rubber blocks are connected at the arc-shaped clamping positions of the clamping blocks and the clamping plates.
Preferably, the elastic member is a spring.
Compared with the prior art, the invention has the following advantages:
1. when the lower cabinet door is opened in a forward rotating mode, the vertical plate is pulled to move forward through the connecting rod, and the vertical plate moves forward to drive the sliding plate to move forward so as to move the mutual inductor out of the cabinet body, so that an maintainer can overhaul a line outside the cabinet body or replace a cable connector for connecting a cable and the mutual inductor, overhaul of the line can be facilitated, and overhaul efficiency can be improved.
2. The cable can be clamped through the cooperation of elastic component, clamp splice and splint, rotates the connecting plate forward below to the horizontality, can make splint drive the clamp splice and rotate forward and keep away from the mutual-inductor with the cable forward upset to can avoid the cable to hinder subsequent dismouting to cable joint, and then can be convenient for dismouting cable joint.
3. The support plate can support the connecting plate on the ground, so that the connecting plate can automatically rotate when the connecting plate is prevented from being touched by mistake, and the stability can be improved.
Drawings
Fig. 1 is a schematic perspective view of the present invention.
Fig. 2 is a schematic view of the installation of the transformer, the sliding rail and the sliding plate of the present invention.
FIG. 3 is a schematic view of the installation of the lower cabinet door, riser and connecting rod of the present invention.
Fig. 4 is a schematic view of the installation of the L-shaped plate, the connecting plate, the clamping plate and other parts of the invention.
Fig. 5 is a schematic view of a part of a perspective structure of the present invention.
Fig. 6 is a schematic partial perspective view of a second embodiment of the present invention.
Fig. 7 is a working state diagram of the support plate of the present invention.
Fig. 8 is a schematic view of the installation of the illumination lamp of the present invention.
In the figure: the novel multifunctional electric cabinet comprises a cabinet body 1, an upper cabinet door 2, a lower cabinet door 3, a mutual inductor 4, a cable joint 5, a sliding rail 6, a sliding plate 7, a vertical plate 8, a connecting rod 9, a L-shaped plate 10, a connecting plate 11, a clamping plate 12, a sliding rod 13, a clamping block 14, an elastic piece 15, a mounting block 16, a supporting plate 17, a rubber anti-skid pad 18, a jack 19, a guide sleeve 20, a bolt 21 and a lighting lamp 22.
Detailed Description
The following detailed description of the present application is provided in conjunction with the accompanying drawings, and it is to be understood that the following detailed description is merely illustrative of the application and is not to be construed as limiting the scope of the application, since numerous insubstantial modifications and adaptations of the application will be to those skilled in the art in light of the foregoing disclosure.
Referring to fig. 1-3, please refer to the looped netowrk cabinet convenient to internal line overhauls, including cabinet body 1, upper cabinet door 2, lower cabinet door 3, mutual inductor 4, cable joint 5, slide rail 6, slide plate 7, riser 8 and connecting rod 9, the front side upper portion bilateral symmetry of cabinet body 1 articulates there are two upper cabinet doors 2 that can rotate forward and open, the front side lower part bilateral symmetry of cabinet body 1 articulates there are two lower cabinet doors 3 that can rotate forward and open, the interval is equipped with cable joint 5 that is used for connecting the cable on the mutual inductor 4, the lower part of cabinet body 1 left and right sides inner wall all is connected with slide rail 6, sliding connection has slide plate 7 that can reciprocate between two slide rails 6, mutual inductor 4 installs at slide plate 7 top, slide plate 7 top bilateral symmetry is connected with two risers 8, the upper portion of two risers 8 all articulates there is connecting rod 9, two connecting rods 9 articulate with two lower cabinet doors 3 respectively, it should be said that riser 8 and connecting rod 9 constitute pulling assembly.
When a line is required to be overhauled, the lower cabinet door 3 is rotated forwards to be opened, the vertical plate 8 is pulled to move forwards through the connecting rod 9 when the lower cabinet door 3 is rotated forwards to be opened, the vertical plate 8 moves forwards to drive the sliding plate 7 to move forwards, so that the mutual inductor 4 is moved out of the cabinet body 1, an overhauling personnel can overhaul the line outside the cabinet body 1 or replace a cable connector 5 connected with the mutual inductor 4, so that the line can be overhauled conveniently, and the overhauling efficiency can be improved; the lower cabinet door 3 is turned backwards to be closed, and the connecting rod 9 can push the vertical plate 8 to drive the sliding plate 7 to move backwards to reset, so that the transformer 4 is moved into the cabinet body 1 again.
Referring to fig. 4-7, two L-shaped plates 10 are symmetrically connected at the bottom of the sliding plate 7, connecting plates 11 capable of rotating up and down are hinged to front sides of inner tops of the two L-shaped plates 10, clamping plates 12 are connected between rear sides of the two connecting plates 11, sliding rods 13 are connected to the clamping plates 12 in a sliding mode from left to right at intervals, clamping blocks 14 are connected to the sliding rods 13, the clamping blocks 14 are matched with the clamping plates 12 to clamp cables, clamping positions of the clamping blocks 14 and the clamping plates 12 are arc-shaped, so that the cables can be firmly clamped, arc-shaped rubber blocks are connected to the arc-shaped clamping positions of the clamping blocks 14 and the clamping plates 12, the cables can be protected from being clamped by the arc-shaped rubber blocks, elastic pieces 15 are connected between the sliding rods 13 and the clamping plates 12, the elastic pieces 15 are springs, and the springs are good in fatigue resistance and can bear repeated use and deformation without losing stable shapes and elastic performances.
Initially, connecting plate 11 is in vertical state, can clip the cable through the cooperation of elastic component 15, clamp splice 14 and splint 12, when breaking off cable and cable splice 5, when need to dismantle cable splice 5 from mutual-inductor 4 and change, can rotate connecting plate 11 forward below to the horizontality, thereby make splint 12 drive clamp splice 14 forward rotation, so that the cable is forward overturned and is kept away from mutual-inductor 4, and then can avoid the cable to hinder subsequent dismouting to cable splice 5, so can be convenient for disassemble cable splice 5, pulling clamp splice 14 removes to the direction of keeping away from splint 12 and can release the fixation to the cable, elastic component 15 deforms along with it, loosen splint 12, under the reset action of elastic component 15, can make splint 12 remove to reset and fix the cable again.
Referring to fig. 5 to 7, a mounting block 16 is connected to the front side of the connection plate 11, and a support plate 17 capable of rotating up and down is hinged to the mounting block 16.
Initially, the supporting plate 17 is in a vertical state, when the connecting plate 11 is to be rotated downwards to a horizontal state, the supporting plate 17 is rotated upwards to be vertical to the connecting plate 11, then the connecting plate 11 is rotated downwards forwards to the horizontal state, the supporting plate 17 is driven to be rotated downwards to be in the vertical state by the mounting block 16, so that the supporting plate 17 is supported on the ground, the connecting plate 11 can be supported, the connecting plate 11 is prevented from rotating automatically when the connecting plate 11 is touched by mistake, and the stability can be improved.
Referring to fig. 5-7, a jack 19 is formed on the connecting plate 11, a guide sleeve 20 is connected to the opposite side of the two L-shaped plates 10, and a latch 21 is slidably connected in the guide sleeve 20.
The jack 19 on the connecting plate 11 is aligned with the bolt 21 after the connecting plate 11 rotates downwards to a horizontal state, the bolt 21 is inserted into the jack 19 to lock the connecting plate 11, so that the connecting plate 11 can be fixed more firmly, the stability can be further improved, and when the connecting plate 11 is required to rotate upwards to reset, the bolt 21 is pulled out of the jack 19 to unlock the connecting plate 11.
Referring to fig. 7, a rubber anti-slip pad 18 is connected to the bottom of the support plate 17, and friction between the support plate 17 and the ground can be increased by the rubber anti-slip pad 18, so that the support plate can be anti-slip.
Referring to fig. 8, an illumination lamp 22 is installed between the upper portions of the two risers 8, and illumination can be performed through the illumination lamp 22, so that an maintainer can see the layout and connection conditions of the lines more clearly, and thus maintenance operations can be performed conveniently by the maintainer.
Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (10)
1. The utility model provides a looped netowrk cabinet convenient to internal circuit overhauls, including the cabinet body (1), go up cabinet door (2), cabinet door (3) down, mutual-inductor (4) and cable joint (5), the front side upper portion bilateral symmetry of the cabinet body (1) is equipped with two and rotates upper cabinet door (2) of opening forward, the front side lower part bilateral symmetry of the cabinet body (1) is equipped with two lower cabinet doors (3) that can rotate forward and open, the interval is equipped with cable joint (5) that are used for connecting the cable on mutual-inductor (4), a serial communication port, still include slide rail (6), slide (7) and pulling subassembly, the lower part of cabinet body (1) left and right sides inner wall all is connected with slide rail (6), slide (7) that can reciprocate between two slide rails (6), install at slide (7) top mutual-inductor (4), be equipped with the pulling subassembly between slide (7) and lower cabinet door (3), through pulling subassembly pulling slide (7) when opening forward rotation, so as to shift out in follow cabinet body (1) with mutual-inductor (4).
2. The ring main unit convenient for internal circuit maintenance according to claim 1, wherein the pulling assembly comprises a vertical plate (8) and a connecting rod (9), two vertical plates (8) are symmetrically connected to the top of the sliding plate (7) in a left-right mode, the connecting rods (9) are hinged to the upper portions of the two vertical plates (8), and the two connecting rods (9) are hinged to the two lower cabinet doors (3) respectively.
3. The ring main unit convenient for internal circuit overhaul according to claim 2, wherein two L-shaped plates (10) are symmetrically connected at the bottom of the sliding plate (7), connecting plates (11) capable of rotating up and down are arranged at the front sides of the inner tops of the two L-shaped plates (10), clamping plates (12) are connected between the rear sides of the two connecting plates (11), sliding rods (13) are connected to the clamping plates (12) at intervals from left to right in a sliding mode, clamping blocks (14) are connected to the sliding rods (13), cables can be clamped by matching the clamping blocks (14) with the clamping plates (12), and elastic pieces (15) are connected between the sliding rods (13) and the clamping plates (12).
4. A ring main unit convenient for inner line maintenance according to claim 3, characterized in that the front side of the connecting plate (11) is connected with a mounting block (16), the mounting block (16) is provided with a supporting plate (17) capable of rotating up and down, and the supporting plate (17) can be supported on the ground along with the downward rotation of the connecting plate (11) so as to support the connecting plate (11).
5. The ring main unit for facilitating internal circuit maintenance according to claim 4, wherein the connecting plate (11) is provided with a jack (19), one side opposite to the two L-shaped plates (10) is connected with a guide sleeve (20), and a bolt (21) capable of being inserted into the jack (19) to lock the connecting plate (11) is connected in a sliding manner in the guide sleeve (20).
6. The ring main unit for facilitating internal circuit maintenance according to claim 4, wherein a rubber anti-slip pad (18) is connected to the bottom of the supporting plate (17).
7. A ring main unit for facilitating maintenance of internal circuits according to claim 2, characterized in that an illuminating lamp (22) is installed between the upper parts of the two risers (8).
8. A ring main unit for facilitating maintenance of internal circuits according to claim 3, wherein clamping positions of the clamping blocks (14) and the clamping plates (12) are arc-shaped.
9. The ring main unit convenient for internal circuit overhaul according to claim 8, wherein arc-shaped rubber blocks are connected at arc-shaped clamping positions of the clamping blocks (14) and the clamping plates (12).
10. A ring main unit for facilitating maintenance of internal circuits according to claim 3, wherein the elastic member (15) is a spring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311556752.1A CN117613706B (en) | 2023-11-21 | 2023-11-21 | Ring main unit convenient for internal circuit maintenance |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311556752.1A CN117613706B (en) | 2023-11-21 | 2023-11-21 | Ring main unit convenient for internal circuit maintenance |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN117613706A true CN117613706A (en) | 2024-02-27 |
| CN117613706B CN117613706B (en) | 2024-05-31 |
Family
ID=89945571
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202311556752.1A Active CN117613706B (en) | 2023-11-21 | 2023-11-21 | Ring main unit convenient for internal circuit maintenance |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN117613706B (en) |
Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106229850A (en) * | 2016-08-23 | 2016-12-14 | 江苏明强电气有限公司 | A kind of flame-proof type reactance cabinet with upper outlet |
| CN206461243U (en) * | 2017-02-28 | 2017-09-01 | 上海华东电器集团电气有限公司 | Low-voltage complete switch equipment with moisture-proof function |
| CN206864903U (en) * | 2017-05-23 | 2018-01-09 | 湖北得力电气有限公司 | A kind of ring main unit |
| CN109038284A (en) * | 2018-08-15 | 2018-12-18 | 沈晨 | A kind of pull-push moving type electric power cabinet equipment |
| CN209786613U (en) * | 2019-04-24 | 2019-12-13 | 浙江沪变电力科技有限公司 | Solid insulation looped netowrk cabinet |
| CN112421414A (en) * | 2020-11-29 | 2021-02-26 | 宁波智正伟盈信息科技有限公司 | Can make up formula electric power cabinet |
| CN214754860U (en) * | 2021-06-16 | 2021-11-16 | 丁小军 | Electric screen cabinet used on subway train |
| CN216436596U (en) * | 2021-12-10 | 2022-05-03 | 临沂市规划建筑设计研究院 | Distribution room is with high-low voltage switch cabinet convenient to overhaul |
| CN114614390A (en) * | 2022-03-17 | 2022-06-10 | 宇超电力股份有限公司 | Solid insulation ring main unit convenient to maintain and using method thereof |
| CN216981333U (en) * | 2021-12-28 | 2022-07-15 | 淮安市伟杰配电控制设备有限公司 | High-low voltage complete switch cabinet with low-voltage reactive compensation |
| CN219226975U (en) * | 2022-12-01 | 2023-06-20 | 杭州思恒电气科技有限公司 | Outdoor high-voltage ring main unit |
-
2023
- 2023-11-21 CN CN202311556752.1A patent/CN117613706B/en active Active
Patent Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106229850A (en) * | 2016-08-23 | 2016-12-14 | 江苏明强电气有限公司 | A kind of flame-proof type reactance cabinet with upper outlet |
| CN206461243U (en) * | 2017-02-28 | 2017-09-01 | 上海华东电器集团电气有限公司 | Low-voltage complete switch equipment with moisture-proof function |
| CN206864903U (en) * | 2017-05-23 | 2018-01-09 | 湖北得力电气有限公司 | A kind of ring main unit |
| CN109038284A (en) * | 2018-08-15 | 2018-12-18 | 沈晨 | A kind of pull-push moving type electric power cabinet equipment |
| CN209786613U (en) * | 2019-04-24 | 2019-12-13 | 浙江沪变电力科技有限公司 | Solid insulation looped netowrk cabinet |
| CN112421414A (en) * | 2020-11-29 | 2021-02-26 | 宁波智正伟盈信息科技有限公司 | Can make up formula electric power cabinet |
| CN214754860U (en) * | 2021-06-16 | 2021-11-16 | 丁小军 | Electric screen cabinet used on subway train |
| CN216436596U (en) * | 2021-12-10 | 2022-05-03 | 临沂市规划建筑设计研究院 | Distribution room is with high-low voltage switch cabinet convenient to overhaul |
| CN216981333U (en) * | 2021-12-28 | 2022-07-15 | 淮安市伟杰配电控制设备有限公司 | High-low voltage complete switch cabinet with low-voltage reactive compensation |
| CN114614390A (en) * | 2022-03-17 | 2022-06-10 | 宇超电力股份有限公司 | Solid insulation ring main unit convenient to maintain and using method thereof |
| CN219226975U (en) * | 2022-12-01 | 2023-06-20 | 杭州思恒电气科技有限公司 | Outdoor high-voltage ring main unit |
Also Published As
| Publication number | Publication date |
|---|---|
| CN117613706B (en) | 2024-05-31 |
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