CN109728535B - Double-row arrangement structure of ultra-high voltage power transmission and transformation GIS circuit breaker - Google Patents
Double-row arrangement structure of ultra-high voltage power transmission and transformation GIS circuit breaker Download PDFInfo
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- CN109728535B CN109728535B CN201910181028.2A CN201910181028A CN109728535B CN 109728535 B CN109728535 B CN 109728535B CN 201910181028 A CN201910181028 A CN 201910181028A CN 109728535 B CN109728535 B CN 109728535B
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- 230000009466 transformation Effects 0.000 title claims abstract description 8
- 238000009434 installation Methods 0.000 claims abstract description 20
- 238000012423 maintenance Methods 0.000 claims abstract description 17
- 238000010276 construction Methods 0.000 abstract description 4
- 230000008602 contraction Effects 0.000 description 3
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Abstract
The utility model provides an ultra-high voltage power transmission and transformation GIS circuit breaker biserial formula arrangement structure, includes the GIS circuit breaker of two rows of arrangements, and the centre of two rows of GIS circuit breakers sets up the installation maintenance passageway, and a set of branch bus is arranged respectively in the outside of two rows of GIS circuit breakers, and a set of framework of being qualified for next round of competitions is arranged respectively in the outside of two sets of branch bus, and two rows of GIS circuit breakers are connected through striding road GIL pipeline busbar with different bus on the ground. The outgoing line framework comprises an outgoing line sleeve, a voltage transformer and an outgoing line lightning arrester which are sequentially and outwards connected with the main bus. According to the invention, the installation and maintenance channels are arranged between the two rows of GIS circuit breakers, and the circuit breakers are connected with the two rows of main buses by adopting the overhead road GIL pipeline buses, so that the length of the main buses is reduced, the installation and maintenance are convenient, the construction cost is reduced, and the operation is reliable.
Description
Technical Field
The invention belongs to the field of power transmission and transformation, and particularly relates to a double-row arrangement structure of an ultra-high voltage power transmission and transformation GIS circuit breaker.
Background
With the rapid development of power grid construction, the scale of the ultra-high voltage transformer substation engineering is larger and larger, and the defects of arrangement of conventional power distribution devices are more and more prominent in northwest areas due to the inherent special natural environment conditions of high altitude, large temperature difference, strong ultraviolet rays and the like. The problems that the land backup resources are seriously insufficient, faults influenced by special environments frequently occur in the operation of the transformer substation, the land resource utilization rate is improved, the engineering cost is reduced, the operation safety of the transformer substation is guaranteed, and the like are the problems which are necessary to be faced by the power grid construction. For the design of a power distribution device of a 750kV transformer substation, a 750kV GIS breaker is one of common equipment of the 750kV power distribution device, and the conventional arrangement mode is in a straight shape, and is one of common design schemes, but in a large-scale transformer substation, due to large occupied area, high engineering cost and frequent faults influenced by the environment after the equipment is put into operation, the safe and stable operation of a power grid is influenced.
Disclosure of Invention
Aiming at the problems in the prior art, the invention provides a double-row arrangement structure of the GIS circuit breaker of the ultra-high voltage power transmission and transformation, wherein an installation and maintenance channel is arranged between the two rows of GIS circuit breakers, and the circuit breakers are connected with the two rows of main buses by adopting an overhead road GIL pipeline bus, so that the length of the main buses is reduced, the installation and maintenance are convenient, the construction cost is reduced, and the operation is reliable.
In order to achieve the above purpose, the technical scheme adopted by the invention is as follows:
The device comprises two rows of GIS breakers, wherein an installation and maintenance channel is arranged in the middle of the two rows of GIS breakers, a group of branch buses are respectively arranged on the outer sides of the two rows of GIS breakers, a group of outgoing line frameworks are respectively arranged on the outer sides of the two groups of branch buses, and the two rows of GIS breakers are connected with different buses through ground-crossing GIL pipeline buses.
The two groups of branch buses are a 750kV outgoing line I branch bus and a 750kV outgoing line II branch bus, and a column of GIS circuit breakers can be further arranged on a line of connecting the above-ground cross-road GIL pipeline bus with the 750kV outgoing line I branch bus.
The outgoing line framework comprises an outgoing line sleeve, a voltage transformer and an outgoing line lightning arrester which are sequentially and outwards connected with the main bus.
The outgoing line sleeve, the voltage transformer and the outgoing line lightning arrester are installed by means of a power transmission tower.
The two rows of GIS breakers are respectively connected with a 750kV three-phase bus, and the GIS breakers, the two groups of branch buses, the ground-crossing road GIL pipeline bus, the outgoing line sleeve, the voltage transformer and the outgoing line lightning arrester all adopt 750kV voltage levels.
The installation and maintenance channel is arranged below the ground crossing road GIL pipeline bus and can pass through the crane.
Compared with the prior art, the invention has the following beneficial effects: the transverse length of the main bus is reduced, the manufacturing cost of the 750kV GIS main bus is high, the main bus is about 2 ten thousand yuan/single-phase meter, one complete string saves the bus by about 65m, and the manufacturing cost is 130 ten thousand yuan. The problems of frequent air leakage and other faults caused by uneven expansion and contraction of long-distance pipeline buses are solved, and the power failure loss cost caused by overhauling the primary main bus is about 1200 ten thousand yuan. The transverse dimension of the distribution device is smaller, and the distribution device can be well matched with the main transformer and other distribution devices, so that the transverse dimension is reduced by 35%. The installation and maintenance channel is arranged between two rows of circuit breakers, the crane can directly drive into the channel without turning, the circuit breakers can be directly lifted, the tonnage of the crane is small, the crane does not need to span a bus, the lifting is convenient, a large amount of installation and maintenance time is saved, and the installation and maintenance time can be saved by 25% through testing. The invention adopts the GIL pipeline bus overground road crossing scheme for the first time, provides reference for subsequent engineering, has reliable operation and has long-term popularization significance.
Drawings
FIG. 1 is a schematic diagram of a complete tandem line of the present invention;
FIG. 2 is a schematic plan view of a complete string of the present invention;
FIG. 3 is a schematic diagram of a complete string cross-section of the present invention;
In the figure: 1-GIS breaker; 2-750kV bus I; 3-750kV bus II; 4-overground crossing the road GIL pipeline bus; 5-750kV outgoing line I branch bus; 6-750kV outgoing line II branch buses; 7-a voltage transformer; 8-an outgoing line lightning arrester; 9-outlet sleeve.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings.
Referring to fig. 1-3, the invention reduces engineering investment, reduces occupied area, eliminates hidden trouble and ensures safe and stable operation of a power grid by optimizing the arrangement mode of breaker equipment in a conventional 750kV GIS power distribution device.
The invention structurally comprises two rows of GIS breakers 1, wherein the two rows of GIS breakers 1 are respectively connected with a 750kV bus I2 and a 750kV bus II 3, an installation and maintenance channel is arranged in the middle of the two rows of GIS breakers 1, 750kV outgoing I branch buses 5 and 750kV outgoing II branch buses 6 are respectively arranged on the outer sides of the two rows of GIS breakers 1, a group of outgoing line frameworks are respectively arranged on the outer sides of the two groups of branch buses, and each outgoing line framework comprises an outgoing line sleeve 9, a voltage transformer 7 and an outgoing line lightning arrester 8 which are sequentially connected with a main bus outwards. The GIS breaker 1, the two groups of branch buses, the overground crossing road GIL pipeline bus 4, the outgoing line sleeve 9, the voltage transformer 7 and the outgoing line lightning arrester 8 all adopt 750kV voltage class. The two rows of GIS breakers 1 are connected with different buses through overground crossing road GIL pipeline buses 4. The installation service aisle is arranged above the ground below the road GIL pipeline busbar 4, and the installation service aisle is capable of passing through a crane. The power distribution device is small in transverse size, can be well matched with the main transformer and other power distribution device areas, and the crane can directly drive into the channel without turning, so that GIS equipment such as a circuit breaker can be conveniently installed and overhauled.
The installation and maintenance channel is arranged between the two rows of circuit breakers, a small-tonnage crane can be selected and the circuit breakers at two sides can be directly lifted, so that inconvenience caused by repeated reversing and steering of the large-scale crane in a conventional linear scheme is avoided, the installation and maintenance are facilitated, the installation period of the GIS circuit breaker is shortened, and the engineering cost is reduced; the scheme of crossing the road on the ground by the GIL pipeline bus is adopted for the first time, so that the observation, the overhaul and the maintenance are convenient. The invention reduces the transverse length of the main bus of 750kV and solves the problem of frequent air leakage faults caused by overlong bus with uneven expansion and contraction in special environment areas; the inconvenience caused by repeated reversing and steering of the large crane in the conventional linear scheme can be avoided, the installation and maintenance are facilitated, the installation period of the GIS breaker is shortened, and the engineering cost is reduced.
The invention can effectively solve the problems of frequent air leakage and other faults of the long-distance pipeline bus caused by thermal expansion and cold contraction due to special environmental conditions such as high altitude, large temperature difference and strong ultraviolet rays in northwest areas, saves land occupation and investment, and has considerable application prospect.
Claims (2)
1. The utility model provides a super high voltage power transmission and transformation GIS circuit breaker biserial formula arrangement structure which characterized in that:
The device comprises two rows of GIS breakers (1), wherein an installation and maintenance channel is arranged in the middle of the two rows of GIS breakers (1), a group of branch buses are respectively arranged at the outer sides of the two rows of GIS breakers (1), a group of outgoing line frameworks are respectively arranged at the outer sides of the two groups of branch buses, and the two rows of GIS breakers (1) are connected with different buses through ground-crossing road GIL pipeline buses (4);
the outgoing line framework comprises an outgoing line sleeve (9), a voltage transformer (7) and an outgoing line lightning arrester (8) which are sequentially and outwards connected with the main bus;
The two groups of branch buses are a 750kV outgoing line I branch bus (5) and a 750kV outgoing line II branch bus (6), and a row of GIS circuit breakers (1) can be arranged on a line which is connected with the 750kV outgoing line I branch bus (5) by a road GIL pipeline bus (4); the two rows of GIS breakers (1) are respectively connected with a 750kV three-phase bus, and the GIS breakers (1), the two groups of branch buses, the ground-crossing road GIL pipeline bus (4), the outgoing line sleeve (9), the voltage transformer (7) and the outgoing line lightning arrester (8) are all in 750kV voltage class; the installation and maintenance channel is arranged below a road cross GIL pipeline bus (4) and can pass through a crane.
2. The ultra-high voltage power transmission and transformation GIS circuit breaker double-row arrangement structure according to claim 1, wherein: the outgoing line sleeve (9), the voltage transformer (7) and the outgoing line lightning arrester (8) are installed by means of a power transmission tower.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910181028.2A CN109728535B (en) | 2019-03-11 | 2019-03-11 | Double-row arrangement structure of ultra-high voltage power transmission and transformation GIS circuit breaker |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910181028.2A CN109728535B (en) | 2019-03-11 | 2019-03-11 | Double-row arrangement structure of ultra-high voltage power transmission and transformation GIS circuit breaker |
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| Publication Number | Publication Date |
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| CN109728535A CN109728535A (en) | 2019-05-07 |
| CN109728535B true CN109728535B (en) | 2024-05-14 |
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| CN201910181028.2A Active CN109728535B (en) | 2019-03-11 | 2019-03-11 | Double-row arrangement structure of ultra-high voltage power transmission and transformation GIS circuit breaker |
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Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201846015U (en) * | 2010-11-05 | 2011-05-25 | 中国电力工程顾问集团西北电力设计院 | GIS (global information system) power distribution unit adopting one and half breaker connection |
| CN102377111A (en) * | 2011-12-01 | 2012-03-14 | 四川电力设计咨询有限责任公司 | Duplicate-busbar arrangement structure with single busbar subsection GIS (Geographic Information System) power distribution units |
| CN203895766U (en) * | 2014-06-20 | 2014-10-22 | 国家电网公司 | Double busbar and double subsection based substation main wiring system |
| CN204597311U (en) * | 2015-04-28 | 2015-08-26 | 中国电力工程顾问集团东北电力设计院有限公司 | A kind of 500kV HGIS power distribution equipment arrangement of 3/2 breaker connection |
| CN106356724A (en) * | 2016-10-11 | 2017-01-25 | 四川电力设计咨询有限责任公司 | Bus three-dimensional arrangement structure for dual-bus dual-segment power distribution device |
| CN206041328U (en) * | 2016-08-30 | 2017-03-22 | 中国西电电气股份有限公司 | GIS equipment layout structure suitable for two female wiring |
| CN108390262A (en) * | 2018-04-11 | 2018-08-10 | 中国电建集团福建省电力勘测设计院有限公司 | The single-row arrangement GIS device of 220kV busbar extended types |
| CN209375009U (en) * | 2019-03-11 | 2019-09-10 | 中国电力工程顾问集团西北电力设计院有限公司 | A kind of 750kV GIS breaker double-row type arragement construction |
-
2019
- 2019-03-11 CN CN201910181028.2A patent/CN109728535B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201846015U (en) * | 2010-11-05 | 2011-05-25 | 中国电力工程顾问集团西北电力设计院 | GIS (global information system) power distribution unit adopting one and half breaker connection |
| CN102377111A (en) * | 2011-12-01 | 2012-03-14 | 四川电力设计咨询有限责任公司 | Duplicate-busbar arrangement structure with single busbar subsection GIS (Geographic Information System) power distribution units |
| CN203895766U (en) * | 2014-06-20 | 2014-10-22 | 国家电网公司 | Double busbar and double subsection based substation main wiring system |
| CN204597311U (en) * | 2015-04-28 | 2015-08-26 | 中国电力工程顾问集团东北电力设计院有限公司 | A kind of 500kV HGIS power distribution equipment arrangement of 3/2 breaker connection |
| CN206041328U (en) * | 2016-08-30 | 2017-03-22 | 中国西电电气股份有限公司 | GIS equipment layout structure suitable for two female wiring |
| CN106356724A (en) * | 2016-10-11 | 2017-01-25 | 四川电力设计咨询有限责任公司 | Bus three-dimensional arrangement structure for dual-bus dual-segment power distribution device |
| CN108390262A (en) * | 2018-04-11 | 2018-08-10 | 中国电建集团福建省电力勘测设计院有限公司 | The single-row arrangement GIS device of 220kV busbar extended types |
| CN209375009U (en) * | 2019-03-11 | 2019-09-10 | 中国电力工程顾问集团西北电力设计院有限公司 | A kind of 750kV GIS breaker double-row type arragement construction |
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| CN109728535A (en) | 2019-05-07 |
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