CN220273153U - Inlet and outlet line interval structure for 40.5KV combined electrical apparatus - Google Patents
Inlet and outlet line interval structure for 40.5KV combined electrical apparatus Download PDFInfo
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- CN220273153U CN220273153U CN202321938235.6U CN202321938235U CN220273153U CN 220273153 U CN220273153 U CN 220273153U CN 202321938235 U CN202321938235 U CN 202321938235U CN 220273153 U CN220273153 U CN 220273153U
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- circuit breaker
- vacuum circuit
- cable
- inlet
- line interval
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- 230000007306 turnover Effects 0.000 claims description 3
- 239000002131 composite material Substances 0.000 claims description 2
- 238000009413 insulation Methods 0.000 abstract description 12
- 238000003908 quality control method Methods 0.000 abstract description 3
- 238000005452 bending Methods 0.000 abstract description 2
- 230000009286 beneficial effect Effects 0.000 abstract description 2
- 238000009434 installation Methods 0.000 description 6
- 239000007789 gas Substances 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 230000007613 environmental effect Effects 0.000 description 2
- 229910000838 Al alloy Inorganic materials 0.000 description 1
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 230000008033 biological extinction Effects 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 239000005431 greenhouse gas Substances 0.000 description 1
- 238000011900 installation process Methods 0.000 description 1
- 210000001503 joint Anatomy 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000006386 neutralization reaction Methods 0.000 description 1
- 230000000007 visual effect Effects 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
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- Gas-Insulated Switchgears (AREA)
Abstract
The utility model belongs to the technical field of power switching equipment, and particularly relates to an incoming and outgoing line interval structure for a 40.5KV combined electrical appliance. The inlet and outlet line interval structure for the 40.5KV combined electrical appliance comprises a bottom frame and is characterized in that: the three-station switch is arranged on the chassis, the three-station switch is connected with a lower outlet of the vacuum circuit breaker, the top of the vacuum circuit breaker is connected with the lightning arrester, the bottom of the vacuum circuit breaker is connected with the current transformer through a cable outgoing line, and the current transformer is arranged on the chassis. The utility model has the beneficial effects that: the higher the air pressure in the air chamber is, the better the insulation performance is, the whole size of the corresponding switch equipment can be reduced, the cabinet width is controlled within 800mm, the occupied area is saved, and the air insulation or small SF can be simultaneously satisfied 6 Insulation requirements for different gas pressures. Sufficient mounting positions are reserved, bending and cable entering of a cable trench are not needed, the cable guide device meets the human engineering design, and meanwhile, the field of view is good, so that safety and health of constructors and quality control of cable head mounting are facilitated.
Description
Field of the art
The utility model belongs to the technical field of power switching equipment, and particularly relates to an incoming and outgoing line interval structure for a 40.5KV combined electrical appliance.
(II) background art
Due to the rapid increase of industrial and urban electricity consumption with the development of economy, 40.5kV GIS closed type combined electrical appliances are new generation metal closed gas insulated switchgear developed based on the use problems. But according to the national environmental protection situation requirement and technical analysis, on the premise of increasing urban land tension, air insulation or less SF is adopted in the medium-voltage GIS product 6 Insulation vacuum arc extinction, which is one of the main directions in which miniaturization of switchgear is possible, can solve the problem of greenhouse gas SF 6 The use and emission problems of the power grid promote the green high-quality development of the power grid, and contribute to realizing the carbon neutralization.
(III) summary of the utility model
The utility model provides the wire inlet and outlet interval structure for the 40.5KV combined electrical appliance, which has the advantages of simple structure, small overall size and good insulating property, and overcomes the defects of the prior art.
The utility model is realized by the following technical scheme:
the utility model provides a 40.5KV composite apparatus is with business turn over line interval structure, includes the chassis, characterized by: the three-station switch is arranged on the chassis, the three-station switch is connected with a lower outlet of the vacuum circuit breaker, the top of the vacuum circuit breaker is connected with the lightning arrester, the bottom of the vacuum circuit breaker is connected with the current transformer through a cable outgoing line, and the current transformer is arranged on the chassis.
The lightning arrester is arranged at the bottom of the vacuum circuit breaker, the top of the vacuum circuit breaker is connected with an overhead outgoing line, and the current transformer is sleeved on the overhead outgoing line.
And a main bus is arranged at the bottom of the three-station switch.
The side face of the vacuum circuit breaker is connected with the control cabinet.
The beneficial effects of the utility model are as follows: the higher the air pressure in the air chamber is, the better the insulation performance is, the whole size of the corresponding switch equipment can be reduced, the cabinet width is controlled within 800mm, the occupied area is saved, and the air insulation or small SF can be simultaneously satisfied 6 Insulation requirements for different gas pressures. Sufficient mounting positions are reserved, bending and cable entering of a cable trench are not needed, the cable guide device meets the human engineering design, and meanwhile, the field of view is good, so that safety and health of constructors and quality control of cable head mounting are facilitated. The gas-insulated overhead sleeve is adopted, the current transformer is hoisted below the sleeve, the gas-insulated overhead sleeve is suitable for compact arrangement, the use is more stable, and the operation is more reliable.
(IV) description of the drawings
The utility model is further described below with reference to the accompanying drawings.
FIG. 1 is a schematic diagram of a cable outlet structure used in the present utility model;
FIG. 2 is a schematic diagram of the structure of the utility model employing overhead outgoing lines;
FIG. 3 is a schematic view of the overhead outlet arrangement of FIG. 2;
in the figure, 1 chassis, 2 three-position switches, 3 vacuum circuit breakers, 4 arresters, 5 cable outgoing lines, 6 current transformers, 7 overhead outgoing lines, 8 main buses and 9 control cabinets.
(fifth) detailed description of the utility model
The drawings illustrate one embodiment of the utility model. The embodiment comprises a chassis 1, a three-position switch 2 is arranged on the chassis 1, the three-position switch 2 is connected with a lower outlet of a vacuum circuit breaker 3, the top of the vacuum circuit breaker 3 is connected with a lightning arrester 4, the bottom of the vacuum circuit breaker 3 is connected with a current transformer 6 through a cable outgoing line 5, and the current transformer 6 is arranged on the chassis 1. The lightning arrester 4 can also be arranged at the bottom of the vacuum circuit breaker 3, the top of the vacuum circuit breaker 3 is connected with an overhead outgoing line 7, and the current transformer 6 is sleeved on the overhead outgoing line 7. The main bus 8 is arranged at the bottom of the three-position switch 2. The side of the vacuum circuit breaker 3 is connected with a control box 9.
The utility model can be used for the line inlet and outlet interval structure of 40.5KV combined electrical applianceAt the same time adopt air insulation or little SF 6 The insulating space between the inlet and outlet lines mainly comprises two types of cable inlet and outlet lines and overhead inlet and outlet lines. The aluminum alloy cylinder shell is adopted, the shell can bear larger air pressure intensity, the higher the air pressure in the air chamber is, the better the insulation performance is, namely the whole size of corresponding switch equipment can be reduced, the cabinet width is controlled within 800mm, the occupied area is saved, and the air insulation or small SF can be simultaneously satisfied 6 Insulation requirements for different gas pressures. For the cable business turn over line scheme, traditional 35kV environmental protection switchgear cable installation height is generally below 700mm, needs constructor gesture such as squatting, groveling or get into the installation of cable duct inside, and current transformer part needs to sink to in the cable duct, and operating space is little, the field of vision is bad, waste time and energy, is unfavorable for constructor safety and health and cable head installation quality management and control. According to the cable inlet and outlet scheme, the cable installation height is improved to be more than 1400mm through reasonable arrangement of the positions of the three-station switch 2 and the vacuum circuit breaker 3, the current transformer 6 is installed on the switchgear underframe 1, sufficient installation positions are reserved, a cable inlet channel is not required to bend down, the cable inlet and outlet scheme meets the human engineering design, meanwhile, the visual field is good, and safety and health of constructors and quality control of cable head installation are facilitated. For overhead line-in and line-out scheme, the traditional 35kV environment-friendly switch equipment is generally connected by adopting a tubular insulated bus, the cost is high, the tubular insulated bus is affected by domestic manufacturer process and has uneven performance quality, the butt joint part has higher requirements on the installation process, part of products have certain potential safety hazards, the current transformer is sleeved on the tubular bus, and a special fixing support is required to be designed. The overhead line inlet and outlet scheme adopts the gas-insulated overhead sleeve, the current transformer 6 is hoisted below the sleeve, and the overhead line inlet and outlet scheme is suitable for compact arrangement, is more stable in use and is more reliable in operation.
Claims (4)
1. The utility model provides a 40.5KV composite apparatus is with business turn over line interval structure, includes chassis (1), characterized by: the three-station switch (2) is installed on the chassis (1), the three-station switch (2) is connected with a lower outlet of the vacuum circuit breaker (3), the top of the vacuum circuit breaker (3) is connected with the lightning arrester (4), the bottom of the vacuum circuit breaker (3) is connected with the current transformer (6) through the cable outgoing line (5), and the current transformer (6) is installed on the chassis (1).
2. The inlet-outlet line interval structure for the 40.5KV combined electrical appliance according to claim 1, wherein the inlet-outlet line interval structure is characterized in that: the lightning arrester (4) is arranged at the bottom of the vacuum circuit breaker (3), the top of the vacuum circuit breaker (3) is connected with the overhead outgoing line (7), and the current transformer (6) is sleeved on the overhead outgoing line (7).
3. The inlet-outlet line interval structure for the 40.5KV combined electrical appliance according to claim 1, wherein the inlet-outlet line interval structure is characterized in that: and a main bus (8) is arranged at the bottom of the three-station switch (2).
4. The inlet-outlet line interval structure for the 40.5KV combined electrical appliance according to claim 1, wherein the inlet-outlet line interval structure is characterized in that: the side face of the vacuum circuit breaker (3) is connected with a control cabinet (9).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321938235.6U CN220273153U (en) | 2023-07-24 | 2023-07-24 | Inlet and outlet line interval structure for 40.5KV combined electrical apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321938235.6U CN220273153U (en) | 2023-07-24 | 2023-07-24 | Inlet and outlet line interval structure for 40.5KV combined electrical apparatus |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220273153U true CN220273153U (en) | 2023-12-29 |
Family
ID=89298592
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321938235.6U Active CN220273153U (en) | 2023-07-24 | 2023-07-24 | Inlet and outlet line interval structure for 40.5KV combined electrical apparatus |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220273153U (en) |
-
2023
- 2023-07-24 CN CN202321938235.6U patent/CN220273153U/en active Active
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