CN203165635U - GIL (gas insulated metal enclosed transmission line) straight connecting line adopted by high-low voltage side of transformer - Google Patents
GIL (gas insulated metal enclosed transmission line) straight connecting line adopted by high-low voltage side of transformer Download PDFInfo
- Publication number
- CN203165635U CN203165635U CN 201220737358 CN201220737358U CN203165635U CN 203165635 U CN203165635 U CN 203165635U CN 201220737358 CN201220737358 CN 201220737358 CN 201220737358 U CN201220737358 U CN 201220737358U CN 203165635 U CN203165635 U CN 203165635U
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- gas
- gas insulated
- voltage side
- transformer
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Abstract
A GIL straight connecting line adopted by a high-low voltage side of a transformer comprises a 500/220 kV power transformer, a bus of a 500 kV gas insulated power distribution device and a bus of a 220 kV gas insulated power distribution device, wherein a high-voltage side oil gas casing pipe of the 500/220 kV power transformer is directly connected with the 500 kV gas insulated bus, and a low-voltage side oil gas casing pipe of the 500/220 kV power transformer is directly connected with the 220 kV gas insulated bus; the high-voltage side oil gas casing pipe and the 500 kV gas insulated bus share SF6 (sulfur hexafluoride) gas insulation; and the low-voltage side oil gas casing pipe and the 220 kV gas insulated bus share the SF6 gas insulation. The GIL straight connecting line has the advantages of simple structure, compact distribution, safe operation, convenience in maintenance and suitability for various climate conditions.
Description
Technical field
The utility model relates to large-scale power transformer and high voltage distribution installation and adopt the GIL ways of connecting.
Background technology
Large-scale power transformer is connected with high voltage distribution installation with built on stilts exposed flexible conductor such as steel reinforced aluminium conductor because the voltage levvl height considers that insulating requirements need adopt long high voltage porcelain bushing pipe or silica gel sleeve pipe to stretch out usually again.There is following problem in this kind mode of connection:
1. because of the restriction of high pressure minimum safe distance, make transformer be connected the big floor space of needs with high voltage distribution installation;
2. exposed flexible conductor is subjected to influence as coastal common natural calamities such as typhoons easily, exists phase fault, broken string ground connection, corona discharge etc. to threaten the major hidden danger of operation power safety;
3. there are possible breakdowns such as pollution flashover, insulation reduction in the insulating sleeve of making somebody a mere figurehead flexible conductor connection both sides, influences operation power safety;
4. conventional insulating sleeve needs regularly to clean, and operation maintenance is loaded down with trivial details.
The utility model content
The purpose of this utility model is to overcome the shortcoming of above-mentioned existence, and provide a kind of simple in structure, arrange compactness, security of operation, wiring arrangement easy to maintenance.
The technical scheme that its technical problem that solves the utility model adopts is: it includes the bus of a 500/220kV power transformer, a 500kV gas insulating distribution apparatus and the bus of a 220kV gas insulating distribution apparatus, the high-pressure side oil gas sleeve pipe of described 500/220kV power transformer directly is connected with the 500kV gas insulated bus, and the low-pressure side oil gas sleeve pipe of 500/220kV power transformer directly is connected with the 220kV gas insulated bus.
Described high-pressure side oil gas sleeve pipe and 500kV gas insulated bus share the SF6 gas-insulated; Described low-pressure side oil gas sleeve pipe and 220kV gas insulated bus share the SF6 gas-insulated.
It includes gas insulated bus (GIL), the oil gas sleeve pipe is direct, and bushing shell for transformer and GIL utilize the SF6 gas-insulated jointly, has avoided bareing insulating sleeve and plain conductor.
The beneficial effects of the utility model are that employing SF6 insulation makes the transformer high and low pressure side become compactness, adopts the GIL connection to stop live part fully and exposes in air, reduces climate change to the influence of operation power safety.
Description of drawings
Fig. 1 is floor plan schematic diagram of the present utility model.
Fig. 2 is that section of the present utility model is arranged schematic diagram.
Embodiment
Below in conjunction with accompanying drawing the utility model is shown in detailed introduction: Fig. 1,2, the utility model includes 500/220kV power transformer 1, power transformer 1 high-pressure side oil gas sleeve pipe 2, power transformer 1 low-pressure side oil gas sleeve pipe 3,500kV gas insulated bus 4,220kV gas insulated bus 5;
500kV gas insulated bus 4 shown in the figure directly is connected with the high-pressure side oil gas sleeve pipe 2 of 500/220kV power transformer 1, the back is installed in 500kV gas insulated bus 4, charges into SF6 gas, for 500kV gas insulated bus 4 and high-pressure side oil gas sleeve pipe 2 provide insulation simultaneously, to guarantee that 500/220kV power transformer 1 on high-tension side insulation and 500kV gas insulated bus 4 conductor inside are to the insulation of shell.
220kV gas insulated bus 5 shown in the figure directly is connected with the low-pressure side oil gas sleeve pipe 3 of 500/220kV power transformer 1, the back is installed in 220kV gas insulated bus 5, charges into SF6 gas, for 220kV gas insulated bus 5 and low-pressure side oil gas sleeve pipe 3 provide insulation simultaneously, with the insulation to shell of the insulation that guarantees 500/220kV power transformer 1 low-pressure side and 220kV gas insulated bus 5 conductor inside.
Claims (2)
1. the transformer high and low pressure side adopts the direct-connected wiring of GIL, it includes the bus of a 500/220kV power transformer, a 500kV gas insulating distribution apparatus and the bus of a 220kV gas insulating distribution apparatus, the high-pressure side oil gas sleeve pipe (2) that it is characterized in that described 500/220kV power transformer (1) directly is connected with 500kV gas insulated bus (4), and the low-pressure side oil gas sleeve pipe (3) of 500/220kV power transformer (1) directly is connected with 220kV gas insulated bus (5).
2. transformer high and low pressure side according to claim 1 adopts the direct-connected wiring of GIL, it is characterized in that described high-pressure side oil gas sleeve pipe (2) and 500kV gas insulated bus (4) share the SF6 gas-insulated; Described low-pressure side oil gas sleeve pipe (3) shares the SF6 gas-insulated with 220kV gas insulated bus (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220737358 CN203165635U (en) | 2012-12-28 | 2012-12-28 | GIL (gas insulated metal enclosed transmission line) straight connecting line adopted by high-low voltage side of transformer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220737358 CN203165635U (en) | 2012-12-28 | 2012-12-28 | GIL (gas insulated metal enclosed transmission line) straight connecting line adopted by high-low voltage side of transformer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203165635U true CN203165635U (en) | 2013-08-28 |
Family
ID=49026800
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220737358 Expired - Lifetime CN203165635U (en) | 2012-12-28 | 2012-12-28 | GIL (gas insulated metal enclosed transmission line) straight connecting line adopted by high-low voltage side of transformer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203165635U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106785944A (en) * | 2016-12-12 | 2017-05-31 | 江苏安靠智能输电工程科技股份有限公司 | A kind of three-phase coenosarc rigid gas insulated power circuit |
-
2012
- 2012-12-28 CN CN 201220737358 patent/CN203165635U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106785944A (en) * | 2016-12-12 | 2017-05-31 | 江苏安靠智能输电工程科技股份有限公司 | A kind of three-phase coenosarc rigid gas insulated power circuit |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee |
Owner name: CHINA ENERGY ENGINEERING GROUP ZHEJIANG ELECTRIC P Free format text: FORMER NAME: ZHEJIANG PROV. ELECTRIC POWER DESIGN INST. |
|
| CP01 | Change in the name or title of a patent holder |
Address after: Hangzhou City, Zhejiang province 310012 GUCUI Road No. 68 Patentee after: CHINA ENERGY ENGINEERING GROUP ZHEJIANG ELETERIC POWER DESIGN INSTITUTE Co.,Ltd. Address before: Hangzhou City, Zhejiang province 310012 GUCUI Road No. 68 Patentee before: Zhejiang Electric Power Design Inst. |
|
| CX01 | Expiry of patent term |
Granted publication date: 20130828 |
|
| CX01 | Expiry of patent term |