CN212571896U - Environment-friendly gas insulation switch cabinet for power distribution network - Google Patents
Environment-friendly gas insulation switch cabinet for power distribution network Download PDFInfo
- Publication number
- CN212571896U CN212571896U CN202020991923.9U CN202020991923U CN212571896U CN 212571896 U CN212571896 U CN 212571896U CN 202020991923 U CN202020991923 U CN 202020991923U CN 212571896 U CN212571896 U CN 212571896U
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- Prior art keywords
- grounding
- power distribution
- busbar
- gas
- distribution network
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- 238000009413 insulation Methods 0.000 title claims abstract description 8
- 239000004593 Epoxy Substances 0.000 claims abstract description 16
- 230000007613 environmental effect Effects 0.000 claims abstract description 4
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 13
- 229910052802 copper Inorganic materials 0.000 claims description 13
- 239000010949 copper Substances 0.000 claims description 13
- 230000003068 static effect Effects 0.000 claims description 5
- 229910052782 aluminium Inorganic materials 0.000 abstract description 2
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 abstract description 2
- 238000007789 sealing Methods 0.000 abstract 2
- 238000002955 isolation Methods 0.000 abstract 1
- 239000007789 gas Substances 0.000 description 18
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 4
- 238000010438 heat treatment Methods 0.000 description 3
- 238000005219 brazing Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 229910052757 nitrogen Inorganic materials 0.000 description 2
- 239000004411 aluminium Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 238000010292 electrical insulation Methods 0.000 description 1
- 230000017525 heat dissipation Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 238000005476 soldering Methods 0.000 description 1
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- Gas-Insulated Switchgears (AREA)
Abstract
本实用新型公开了一种配电网用的环保气体绝缘开关柜，包括气箱壳体，其特征在于，在气箱壳体的两侧设有侧出并柜套管，侧出并柜套管通过母排与接地排、隔离开关动触头连接，接地排上设有接地套管；所述气箱壳体的下部设有与母排连接的固封极柱，固封极柱与进线环氧套管连接。本实用新型中进线端环氧套管、安装铝板侧的接地端套管、触管都采取斜向布置方式，其中进线端采用斜向布置环氧套管，接地端亦采用斜向布置三相触管、套管等元件，这种布置方式可以在保证绝缘距离的前提下充分利用气箱内部空间，避免气箱尺寸过大而导致的占用空间增加，成本升高等问题的出现。
The utility model discloses an environmental protection gas-insulated switch cabinet for power distribution network, which comprises an air box shell. The tube is connected to the grounding bar and the moving contact of the isolation switch through the busbar, and the grounding bar is provided with a grounding sleeve; the lower part of the air box shell is provided with a solid-sealing pole connected to the busbar, and the solid-sealing pole is connected to the inlet. Line epoxy casing connection. In the utility model, the incoming line end epoxy casing, the grounding end casing on the side where the aluminum plate is installed, and the contact tube are all arranged obliquely, wherein the incoming wire end adopts an oblique arrangement of epoxy casing, and the grounding end also adopts an oblique arrangement. Three-phase contact tubes, bushings and other components, this arrangement can make full use of the internal space of the air box on the premise of ensuring the insulation distance, and avoid problems such as increased occupied space and increased cost caused by the excessive size of the air box.
Description
Technical Field
The utility model relates to an environmental protection gas insulated switchgear that distribution network was used belongs to electric power system distribution network complete set switchgear field.
Background
For the field of medium-voltage environment-friendly gas switch cabinets, a primary loop is mainly arranged by silver-plated copper bars which are arranged from left to right, from top to bottom, and the electrical insulation strength of environment-friendly gas is lower than that of commonly used SF6The traditional copper bar arrangement mode is used for ensuring the insulation distance, so that the requirement on the size of the cabinet body is improved; meanwhile, no matter nitrogen or dry air is used as a gas insulation medium, the temperature rise margin and SF are equal6The gas phase difference is more than 10K, and the traditional arrangement mode is not beneficial to controlling the temperature rise and solving the heat dissipation problem in the closed gas box.
Disclosure of Invention
The to-be-solved technical problem of the utility model is: how to solve the problem of temperature rise while keeping a small cabinet size.
In order to solve the technical problem, the technical scheme of the utility model is to provide an environmental protection gas insulated switchgear for a power distribution network, which comprises a gas tank shell and is characterized in that side-out cabinet combining sleeves are arranged at two sides of the gas tank shell and are connected with an isolating switch through a main bus bar, a grounding sleeve is arranged on a grounding bar, and the main bus bar and the grounding bar are connected through a moving contact of the isolating switch; and the lower part of the gas box shell is provided with a solid-sealed polar pole connected with the busbar, and the solid-sealed polar pole is connected with the incoming line epoxy sleeve.
Preferably, the solid-sealed polar pole is internally provided with a vacuum bubble, and the busbar is connected with the vacuum bubble arranged in the solid-sealed polar pole through flexible connection.
Preferably, the incoming line epoxy sleeve is connected with the vacuum bulb.
Preferably, the busbar is connected with the busbar static contact pipe or the grounding bar static contact pipe through the three-station isolating switch moving contact to realize the functions of closing, isolating and grounding of the isolating switch.
Preferably, the vacuum bulb is connected with the insulating pull rod.
Preferably, a screw rod is arranged in the three-station isolating switch.
Preferably, the grounding sleeve, the isolating switch moving contact and the incoming line epoxy sleeve are arranged in an inclined mode.
Preferably, the flexible connection and the copper bar are connected by brazing.
The utility model discloses well inlet wire end epoxy sleeve pipe, the earthing terminal sleeve pipe of installation aluminium plate side, earthing touch tube all take the slant arrangement mode, and wherein the inlet wire end adopts the slant to arrange the epoxy sleeve pipe, and the earthing terminal also adopts the slant to arrange elements such as three-phase touch tube, sleeve pipe, and this kind of arrangement mode can be in make full use of gas tank inner space under the prerequisite of guaranteeing insulation distance, avoids the gas tank oversize and the occupation space that leads to increase, the appearance of cost rising scheduling problem. Additionally, the distance between the heating copper bars is increased by arranging the contact tubes in an oblique arrangement mode, and meanwhile, the arrangement mode of soldering the flexible connection on the connecting copper bars is adopted, so that the conduction of current is facilitated, and the problem of temperature rise can be improved to some extent.
The key points are that: the requirement on the size of the cabinet body can be reduced under the condition of ensuring the insulating strength by the oblique arrangement mode of the contact tube and the epoxy sleeve, so that the space can be saved, and the cost can be reduced; the distance between the heating copper bars is increased by changing the oblique arrangement mode of the contact tubes and the epoxy sleeves, and the temperature rise problem can be improved to a certain extent; the soft connection is brazed and has been avoided producing new metal faying surface at the fixed mode of connecting the copper bar to reduce the resistance value in the primary loop, reduced calorific capacity, played the improvement effect to the temperature rise problem.
Drawings
Figure 1 is a schematic structural diagram of the present invention,
fig. 2 is a schematic structural diagram of the present invention.
Detailed Description
In order to make the present invention more comprehensible, preferred embodiments are described in detail below with reference to the accompanying drawings.
As shown in fig. 1 and 2, an environment-friendly gas insulated switchgear for a power distribution network comprises a gas tank shell 11, and is characterized in that two sides of the gas tank shell 11 are provided with side-out cabinet combining sleeves 3, a moving contact 12 of an isolating switch is internally provided with a lead screw 7, the side-out cabinet combining sleeves 3 are connected with a grounding bar 4 through a busbar 2 and the moving contact 12 of the isolating switch, and the grounding bar 4 is provided with a grounding sleeve 1; the lower part of the gas tank shell 11 is provided with a solid-sealed polar pole 10 connected with the busbar 2, the solid-sealed polar pole 10 is connected with the incoming line epoxy casing 5, a vacuum bubble 8 is arranged in the solid-sealed polar pole 10, and the busbar 2 is connected with the vacuum bubble 8 arranged in the solid-sealed polar pole 10 through a flexible connection 9. The vacuum bubble 8 is connected with the insulating pull rod 6.
A three-phase conductive main copper bar loop is arranged in the whole switch cabinet, and the function of connecting with an external circuit is realized through a side-out cabinet combining sleeve 3 and an incoming line epoxy sleeve 5; the busbar 2 is connected with a static contact tube or a grounding bar 4 of the busbar 2 through a three-station isolating switch moving contact 12 to realize the functions of closing, isolating and grounding of the isolating switch; the busbar 2 is connected with a vacuum bubble 8 in the solid-sealed polar pole 10 through a connecting copper bar and a flexible connection 9, and then is connected with an external circuit through the incoming line epoxy sleeve 5. The grounding sleeve 1 and the isolating switch moving contact 12 are obliquely arranged, so that the internal size of the air box is saved; the flexible coupling 9 is brazed on the connecting copper bar, so that the contact surface between copper is reduced, the loop resistance is reduced, and the effect of reducing the heating during power-on is good.
In a primary high-voltage electrifying loop in the air box, the wire inlet end adopts an inclined arrangement mode for the epoxy sleeve 5, and the grounding sleeve 1, the static contact pipe and the like adopt an inclined arrangement mode; the isolating switch connecting copper bar and the vacuum circuit breaker of the embedded pole 10 are fixed by adopting a brazing soft connection 9; the primary conductive loop is completely sealed in the gas box and is filled with nitrogen; the vacuum circuit breaker is sealed in the solid-sealed pole 10 and plays a role of breaking a large-capacity current.
Claims (6)
1. An environment-friendly gas insulation switch cabinet for a power distribution network comprises a gas box shell (11) and is characterized in that side-out cabinet combining sleeves (3) are arranged on two sides of the gas box shell (11), the side-out cabinet combining sleeves (3) are connected with a grounding bar (4) through a bus bar (2) and an isolating switch moving contact (12), and the grounding bar (4) is provided with a grounding sleeve (1); the lower part of the gas tank shell (11) is provided with a solid-sealed polar pole (10) connected with the busbar (2), and the solid-sealed polar pole (10) is connected with the incoming line epoxy casing (5).
2. The environment-friendly gas-insulated switchgear for power distribution networks according to claim 1, wherein vacuum bubbles (8) are provided in the embedded poles (10), and the busbar (2) is connected with the vacuum bubbles (8) provided in the embedded poles (10) through flexible connections (9).
3. The environment-friendly gas-insulated switchgear for power distribution network of claim 1, wherein the busbar (2) is connected to the busbar static contact tube or the grounding bar (4) through the three-position disconnecting switch moving contact (12) to realize the functions of closing, isolating and grounding of the disconnecting switch.
4. An environmentally friendly gas insulated switchgear for electric power distribution networks according to claim 2, characterized in that said vacuum vessel (8) is connected to the insulating tie (6).
5. The environmental protection gas insulation switch cabinet for the distribution network as recited in claim 1, characterized in that the grounding bushing (1), the isolating switch moving contact (12) and the incoming line epoxy bushing (5) are all arranged in an oblique manner.
6. The environmentally friendly gas insulated switchgear for power distribution networks according to claim 2, characterized in that said flexible connection (9) is soldered to the connecting copper bars.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020991923.9U CN212571896U (en) | 2020-06-02 | 2020-06-02 | Environment-friendly gas insulation switch cabinet for power distribution network |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020991923.9U CN212571896U (en) | 2020-06-02 | 2020-06-02 | Environment-friendly gas insulation switch cabinet for power distribution network |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212571896U true CN212571896U (en) | 2021-02-19 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020991923.9U Active CN212571896U (en) | 2020-06-02 | 2020-06-02 | Environment-friendly gas insulation switch cabinet for power distribution network |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212571896U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114389193A (en) * | 2021-12-01 | 2022-04-22 | 平高集团有限公司 | Inflatable overhead incoming line cabinet |
-
2020
- 2020-06-02 CN CN202020991923.9U patent/CN212571896U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114389193A (en) * | 2021-12-01 | 2022-04-22 | 平高集团有限公司 | Inflatable overhead incoming line cabinet |
| CN114389193B (en) * | 2021-12-01 | 2023-12-15 | 平高集团有限公司 | An inflatable overhead line entry cabinet |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20250110 Address after: Room 3255, Zone A, 3rd Floor, Building 2, No. 715 Yingshun Road, Qingpu District, Shanghai, 2017 Patentee after: Shanghai Electric Group Transmission and Distribution Equipment Co.,Ltd. Country or region after: China Address before: 30F, No.8 Xingyi Road, Changning District, Shanghai 200050 Patentee before: Shanghai Electric Group Co.,Ltd. Country or region before: China |