CN203895766U - Double busbar and double subsection based substation main wiring system - Google Patents
Double busbar and double subsection based substation main wiring system Download PDFInfo
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- CN203895766U CN203895766U CN201420331703.8U CN201420331703U CN203895766U CN 203895766 U CN203895766 U CN 203895766U CN 201420331703 U CN201420331703 U CN 201420331703U CN 203895766 U CN203895766 U CN 203895766U
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Abstract
The utility model relates to a double busbar and double subsection based 220kV substation main wiring system, which comprises a first GIS busbar and a second GIS busbar, wherein each of the first GIS busbar and the second GIS busbar is formed by two busbar sections. The double busbar and double subsection based substation main wiring system is characterized in that a first GIS front busbar and a second GIS front busbar are connected to a power plant A through a first outgoing circuit breaker and connected to a power plant B through a second outgoing circuit breaker; and a first GIS rear busbar and a second GIS rear busbar are connected to the power plant A through a third outgoing circuit breaker and connected to the power plant B through a fourth outgoing circuit breaker. The double busbar and double subsection based substation main wiring system adjusts spaced arrangement of the power plants and the substation through increasing busbar cylinders which are arranged in the substation in a crossed mode, and avoids a condition that the overall electric power transmission channel of main wiring of conventional double busbar subsection wiring is cut off when the sectionalized side busbar stops operating, thereby greatly improving the power supply reliability; and only a small section of busbar equipment is required to be additionally arranged through increasing the busbar cylinders which are arranged in the substation in the crossed mode, thereby being small in investment, and avoiding increasement in construction difficulty and cost brought about by the line reverse interval.
Description
Technical field
The utility model relates to power system transformer substation technical field, specifically a kind of 220kV transformer substation main connection system based on the two segmentations of double-bus.
Background technology
Transformer station is voltage of transformation in electric power system, acceptance and distribution electric energy, the flow direction of controlling electric power and the power equipment of adjusting voltage, and it gets up the grid contact of each step voltage by its transformer.Transformer station can be divided into: the transformer station of the electric pressures such as 1000kV, 750kV, 500kV, 330kV, 220kV, 110kV, 66kV, 35kV, 10kV, 6.3kV.
The main electrical scheme pattern of 220kV transformer station generally adopts double-bus section wiring or double bus scheme (establishing segmentation disconnecting link) at present.Due to GIS(gas-insulated metal-enclosed switchgear) high-voltage combined electrical apparatus equipment has and the advantage such as take up an area to economize, reliable, and the 220kV of 220kV transformer station power distribution equipment generally adopts GIS equipment.Transformer station for the two section wirings of double-bus or double-bus disconnecting link section wiring, if there is one section of busbar fault, in GIS overhaul of the equipments process, need switch all to stop transport with side bus, therefore, this transformer station, in the design process of connecting system, takes into full account choose reasonable main electrical scheme pattern significant for the security reliability, raising power supply capacity and the operational flexibility that improve system.
In the main electrical scheme system of newly-built 220kV transformer station, often less consideration makes full use of Substation Bus Arrangement pattern and arrangement, especially for pouring-in access transformer station of power plant or newly-built transformer station, cut-offs the situation of the grid-connected double-circuit line access of power plant.For power plant with double-circuit line in the topological structure with the above-mentioned transformer station of pouring-in access, if power plant's inlet wire is all positioned at transformer station's block switch one side, when one section of bus of transformer station breaks down situation, need all to have a power failure and to keep in repair with side bus, power plant will all have a power failure when the time comes, and the safe power supply of power plant and electrical network is affected greatly.For power plant, accessed electrical network, the situation that power plant sends circuit access is cut-off by newly-built transformer station, if power plant's inlet wire is all positioned at transformer station's block switch one side, when one section of bus of transformer station breaks down situation, transformer station to power plant double-circuit line is all stopped transport, cause whole power transmission passage to lose, other send line trend must to add high-power station, affect the power supply safety of electrical network.
As shown in Figure 1, the situation that newly-built transformer station cut-offs power plant's grid-connected double-circuit line access of take below describes as example, and the A of power plant accesses the B of transformer station by double-circuit line, and newly-built transformer station is by cut-offfing A-B double-circuit line the situation of access.In this case, if the double-circuit line that the A of power plant comes is received a side of newly-built substation bus bar segmentation, under transformer station's homonymy maintenance or failure condition, power plant's double back is sent circuit and all can not be transmitted electric power, and the power supply capacity of electrical network and power supply reliability will be a greater impact.Owing to adopting GIS equipment, there is arbitrary section of busbar fault of I, II, III, IV of newly-built transformer station, the bus that all can cause the same side has a power failure and to overhaul, and causes the A of power plant to be cut off to the passway for transmitting electricity of the B of transformer station, and the A of power plant, transformer station's B power supply reliability are affected greatly.
Utility model content
For above-mentioned deficiency, the utility model provides a kind of 220kV transformer substation main connection system based on the two segmentations of double-bus, and it can improve the reliability of power system power supply ability and power supply.
The technical scheme in the invention for solving the technical problem is: the 220kV transformer substation main connection system based on the two segmentations of double-bus, described 220kV transformer station is arranged between the A of power plant and the B of transformer station of access electrical network, comprise the GIS bus and the 2nd GIS bus that by two sections of buses, are formed respectively, it is characterized in that, a described GIS bus comprises before a GIS who connects by the first section breaker bus after bus and a GIS, and described the 2nd GIS bus comprises before the 2nd GIS connecting by the second section breaker bus after bus and the 2nd GIS; Before a described GIS, before bus and the 2nd GIS, bus is connected with two 220kV main transformers, and is connected with the A of power plant by the first wire-outgoing breaker, by the second wire-outgoing breaker, is connected with the B of transformer station; After a described GIS, after bus and the 2nd GIS, bus is connected with two 220kV main transformers, and is connected with the A of power plant by the 3rd wire-outgoing breaker, by the 4th wire-outgoing breaker, is connected with the B of transformer station; Before a described GIS, bus is connected by the first bus with bus before the 2nd GIS, and after a described GIS, bus is connected by the second bus with bus after the 2nd GIS.
Further, the two ends of described the first section breaker and the second section breaker are respectively arranged with sectionalizer; The two ends of described the first wire-outgoing breaker, the second wire-outgoing breaker, the 3rd wire-outgoing breaker and the 4th wire-outgoing breaker are respectively arranged with outlet isolating switch.
Further, the two ends of described the first bus and the second bus are respectively arranged with mother isolating switch.
Further, at the second wire-outgoing breaker, arrive the outlet of the B of transformer station and the outlet infall that the 3rd wire-outgoing breaker arrives the A of power plant, between described the second wire-outgoing breaker and the B of transformer station, be provided with the first bus bar canister, between described the 3rd wire-outgoing breaker and the A of power plant, be provided with the second bus bar canister, described the first bus bar canister and the second bus bar canister are arranged in a crossed manner.
The beneficial effects of the utility model are:
1) the utility model is by bus bar canister arranged in a crossed manner in increase station, adjust being spaced of power plant, transformer station, avoid conventional double-bus section wiring main electrical scheme whole electric power in segmentation one side bus stoppage in transit situation to send the cut situation of passage, greatly improved power supply reliability.
2) the utility model, by bus bar canister arranged in a crossed manner in increase station, only needs to increase a bit of bus equipment, invests littlely, has avoided that station is outer falls difficulty of construction that interval brings and the increase of cost by circuit.
Accompanying drawing explanation
Fig. 1 is the structural representation of the 220kV transformer substation main connection system based on the two segmentations of double-bus in prior art;
Fig. 2 is structural representation of the present utility model;
In figure, bus before the 11, the one GIS, bus after the 12, the one GIS, 21, bus before the 2nd GIS, bus after the 22, the 2nd GIS, the 31, first section breaker, 32, the second section breaker, the 41, first wire-outgoing breaker, the 42, second wire-outgoing breaker, 43, the 3rd wire-outgoing breaker, 44, the 4th wire-outgoing breaker, the 51, first bus, 52 second buses, 61, the first bus bar canister, 62 second bus bar canisters.
Embodiment
For clearly demonstrating the technical characterstic of this programme, below by embodiment, and in conjunction with its accompanying drawing, the utility model is elaborated.Disclosing below provides many different embodiment or example to be used for realizing different structure of the present utility model.Of the present utility model open in order to simplify, hereinafter the parts of specific examples and setting are described.In addition, the utility model can be in different examples repeat reference numerals and/or letter.This repetition is in order to simplify and object clearly, itself do not indicate the relation between discussed various embodiment and/or setting.It should be noted that illustrated parts are not necessarily drawn in proportion in the accompanying drawings.The utility model has omitted the description of known assemblies and treatment technology and technique to avoid unnecessarily limiting the utility model.
As shown in Figure 2, a kind of 220kV transformer substation main connection system based on the two segmentations of double-bus of the present utility model, described 220kV transformer station is arranged between the A of power plant and the B of transformer station of access electrical network, comprise the GIS bus and the 2nd GIS bus that by two sections of buses, are formed respectively, it is characterized in that, a described GIS bus comprises before a GIS who connects by the first section breaker 31 bus 12 after bus 11 and a GIS, and described the 2nd GIS bus comprises before the 2nd GIS connecting by the second section breaker 32 bus 22 after bus 21 and the 2nd GIS; Before a described GIS, before bus 11 and the 2nd GIS, bus 21 is connected with two 220kV main transformers (1# main transformer and 2# main transformer), and is connected by the first wire-outgoing breaker 41Yu A of power plant, by the second wire-outgoing breaker 42Yu B of transformer station, is connected; After a described GIS, after bus 12 and the 2nd GIS, bus 12 is connected with two 220kV main transformers (3# main transformer and 4# main transformer), and is connected by the 3rd wire-outgoing breaker 43Yu A of power plant, by the 4th wire-outgoing breaker 44Yu B of transformer station, is connected; Before a described GIS, bus 11 is connected by the first bus 51 with bus 21 before the 2nd GIS, and after a described GIS, bus 12 is connected by the second bus 52 with bus 22 after the 2nd GIS.At the outlet of the second wire-outgoing breaker 42Dao B of transformer station and the outlet infall of the 3rd wire-outgoing breaker 43Dao A of power plant, between described the second wire-outgoing breaker 42Yu B of transformer station, be provided with the first bus bar canister 61, between described the 3rd wire-outgoing breaker 43Yu A of power plant, be provided with the second bus bar canister 62, described the first bus bar canister 61 and the second bus bar canister 62 are arranged in a crossed manner.
Further, the two ends of described the first section breaker 31 and the second section breaker 32 are respectively arranged with sectionalizer; The two ends of described the first wire-outgoing breaker 41, the second wire-outgoing breaker 42, the 3rd wire-outgoing breaker 43 and the 4th wire-outgoing breaker 44 are respectively arranged with outlet isolating switch, and the two ends of described the first bus 51 and the second bus 52 are respectively arranged with mother isolating switch.
The utility model is on the basis of conventional 220kV Substation Bus Arrangement layout pattern, two intervals that chosen distance is nearest, increase part bus bar canister equipment and extend to the interval location of wanting outlet, equally, the interval bus bar canister equipment that need to exchange out line position also extends to the line position that goes out that will adjust, intersecting must appear in the bus bar canister extending like this, can take upper and lower parallel arrangement to realize, extend to going out after line position by wall bushing or being directly connected on outlet terminal tower of will adjusting, avoided difficulty of construction and the potential safety hazard by line adjustment interval, brought.
The utility model is a kind of improvement main electrical scheme layout pattern based on the two section wirings of double-bus, on the two section wirings of conventional double-bus basis, by bus bar canister arranged in a crossed manner in increase station, the original A of power plant outlet is positioned to bus sectional lized homonymy to be optimized and revised and is positioned at homonymy for power plant's outlet and transformer station's B outlet, guarantee under 220KV transformer station one side bus failure condition, at the A of power plant of segmentation opposite side and the electric power between the B of transformer station, sending passage can be unimpeded, avoided conventional double-bus section wiring main electrical scheme whole electric power in segmentation one side bus stoppage in transit situation to send the cut situation of passage, greatly improved power supply reliability.
The above is preferred implementation of the present utility model; for those skilled in the art; not departing under the prerequisite of the utility model principle, can also make some improvements and modifications, these improvements and modifications are also regarded as protection range of the present utility model.
Claims (4)
1. the 220kV transformer substation main connection system based on the two segmentations of double-bus, described 220kV transformer station is arranged between the A of power plant and the B of transformer station of access electrical network, comprise the GIS bus and the 2nd GIS bus that by two sections of buses, are formed respectively, it is characterized in that, a described GIS bus comprises before a GIS who connects by the first section breaker bus after bus and a GIS, and described the 2nd GIS bus comprises before the 2nd GIS connecting by the second section breaker bus after bus and the 2nd GIS; Before a described GIS, before bus and the 2nd GIS, bus is connected with two 220kV main transformers, and is connected with the A of power plant by the first wire-outgoing breaker, by the second wire-outgoing breaker, is connected with the B of transformer station; After a described GIS, after bus and the 2nd GIS, bus is connected with two 220kV main transformers, and is connected with the A of power plant by the 3rd wire-outgoing breaker, by the 4th wire-outgoing breaker, is connected with the B of transformer station; Before a described GIS, bus is connected by the first bus with bus before the 2nd GIS, and after a described GIS, bus is connected by the second bus with bus after the 2nd GIS.
2. the 220kV transformer substation main connection system based on the two segmentations of double-bus according to claim 1, is characterized in that, the two ends of described the first section breaker and the second section breaker are respectively arranged with sectionalizer; The two ends of described the first wire-outgoing breaker, the second wire-outgoing breaker, the 3rd wire-outgoing breaker and the 4th wire-outgoing breaker are respectively arranged with outlet isolating switch.
3. the 220kV transformer substation main connection system based on the two segmentations of double-bus according to claim 1, is characterized in that, the two ends of described the first bus and the second bus are respectively arranged with mother isolating switch.
4. according to the 220kV transformer substation main connection system based on the two segmentations of double-bus described in claims 1 to 3 any one, it is characterized in that, at the second wire-outgoing breaker, arrive the outlet of the B of transformer station and the outlet infall that the 3rd wire-outgoing breaker arrives the A of power plant, between described the second wire-outgoing breaker and the B of transformer station, be provided with the first bus bar canister, between described the 3rd wire-outgoing breaker and the A of power plant, be provided with the second bus bar canister, described the first bus bar canister and the second bus bar canister are arranged in a crossed manner.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420331703.8U CN203895766U (en) | 2014-06-20 | 2014-06-20 | Double busbar and double subsection based substation main wiring system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420331703.8U CN203895766U (en) | 2014-06-20 | 2014-06-20 | Double busbar and double subsection based substation main wiring system |
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| CN203895766U true CN203895766U (en) | 2014-10-22 |
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| CN201420331703.8U Expired - Lifetime CN203895766U (en) | 2014-06-20 | 2014-06-20 | Double busbar and double subsection based substation main wiring system |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104849602A (en) * | 2015-06-05 | 2015-08-19 | 广东电网有限责任公司佛山供电局 | GIS double-bus distribution equipment fault detection method and system |
| CN105044430A (en) * | 2015-06-05 | 2015-11-11 | 广东电网有限责任公司佛山供电局 | Branch current detection method and system of double-bus distribution equipment parallel outlet wires |
| CN109245291A (en) * | 2018-11-15 | 2019-01-18 | 山东钢铁股份有限公司 | The maintenance safety measure method for arranging of the double sectional power supply systems of substation's double-bus |
| CN109728535A (en) * | 2019-03-11 | 2019-05-07 | 中国电力工程顾问集团西北电力设计院有限公司 | A kind of ehv power transmission GIS breaker double-row type arragement construction |
| CN111049054A (en) * | 2019-12-26 | 2020-04-21 | 青岛特锐德电气股份有限公司 | Vehicle-mounted movable GIS equipment |
| CN111864551A (en) * | 2020-07-06 | 2020-10-30 | 国网宁夏电力有限公司检修公司 | Main wiring structure of transformer substation |
| CN112271728A (en) * | 2020-10-15 | 2021-01-26 | 华能重庆珞璜发电有限责任公司 | Method for improving flexibility of thermal generator set switching station and operation method thereof |
-
2014
- 2014-06-20 CN CN201420331703.8U patent/CN203895766U/en not_active Expired - Lifetime
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104849602A (en) * | 2015-06-05 | 2015-08-19 | 广东电网有限责任公司佛山供电局 | GIS double-bus distribution equipment fault detection method and system |
| CN105044430A (en) * | 2015-06-05 | 2015-11-11 | 广东电网有限责任公司佛山供电局 | Branch current detection method and system of double-bus distribution equipment parallel outlet wires |
| CN104849602B (en) * | 2015-06-05 | 2017-12-22 | 广东电网有限责任公司佛山供电局 | GIS double-bus distribution equipment fault detection methods and system |
| CN105044430B (en) * | 2015-06-05 | 2018-01-16 | 广东电网有限责任公司佛山供电局 | The tributary electric current detecting method and system of double-bus distribution equipment outlet arranged side by side |
| CN109245291A (en) * | 2018-11-15 | 2019-01-18 | 山东钢铁股份有限公司 | The maintenance safety measure method for arranging of the double sectional power supply systems of substation's double-bus |
| CN109245291B (en) * | 2018-11-15 | 2021-08-27 | 山东钢铁股份有限公司 | Maintenance safety measure arrangement method for double-bus double-subsection power supply system of transformer substation |
| CN109728535A (en) * | 2019-03-11 | 2019-05-07 | 中国电力工程顾问集团西北电力设计院有限公司 | A kind of ehv power transmission GIS breaker double-row type arragement construction |
| CN109728535B (en) * | 2019-03-11 | 2024-05-14 | 中国电力工程顾问集团西北电力设计院有限公司 | Double-row arrangement structure of ultra-high voltage power transmission and transformation GIS circuit breaker |
| CN111049054A (en) * | 2019-12-26 | 2020-04-21 | 青岛特锐德电气股份有限公司 | Vehicle-mounted movable GIS equipment |
| CN111864551A (en) * | 2020-07-06 | 2020-10-30 | 国网宁夏电力有限公司检修公司 | Main wiring structure of transformer substation |
| CN111864551B (en) * | 2020-07-06 | 2024-05-17 | 国网宁夏电力有限公司检修公司 | Main wiring structure of transformer substation |
| CN112271728A (en) * | 2020-10-15 | 2021-01-26 | 华能重庆珞璜发电有限责任公司 | Method for improving flexibility of thermal generator set switching station and operation method thereof |
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Granted publication date: 20141022 |