CN204252595U - A kind of 500kV transformer station general layout structure - Google Patents
A kind of 500kV transformer station general layout structure Download PDFInfo
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- CN204252595U CN204252595U CN201420741383.3U CN201420741383U CN204252595U CN 204252595 U CN204252595 U CN 204252595U CN 201420741383 U CN201420741383 U CN 201420741383U CN 204252595 U CN204252595 U CN 204252595U
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Abstract
The utility model discloses a kind of 500kV transformer station general layout structure, comprise a region, No. two regions, main transformer, 500kV power distribution equipment are arranged on a region, and 220kV power distribution equipment, 35kV power distribution equipment are arranged on No. two regions, and described No. two regions adopt double-deck stereoization to arrange.Reliability not reducing design of the present utility model, and under taking into full account the prerequisite of economy, by reasonable Arrangement power distribution equipment, the floor space of transformer station is reduced, on 500kV transformer station GIS arrangement basis, realize a kind of compact 500kV transformer station general layout scheme, reach and economize the land resource, meet the layout needs of narrow and small especially landform site.
Description
Technical field
The utility model belongs to ehv power transmission design field, proposes a kind of 500kV transformer station compact general layout scheme.
Background technology
Ultra-high Voltage Substations is the important component part of electrical network.The key electrical network of China mainly adheres to Two large pools company separately, is respectively national grid and Southern Power Grid Company.By owner's bid, the design of 500kV transformer station, determines that the designing unit possessing relevant design qualification bears.Because home and abroad 500kV transformer station is comparatively ripe in technology and equipment, for adapting to the requirement of Large scale construction electrical network, implement intensive management, State Grid Corporation of China has organized relevant departments and designing unit to work out in 2005 " 500(300) kV Typical Design for Substations scheme apply handbook ".Southern Power Grid Company has also worked out " type design volume Two 500kV transformer station of transformer station of Southern Power Grid Company type design " in 2006.At present, the design work of China 500kV transformer station is all carried out based on above-mentioned typical case (standard) design.
For the difference of transformer station's technical condition and ambient conditions, 500kV transformer station typical case (standard) design gives 4 classes outdoor general layout scheme, is respectively Cubicle Gas-Insulated Switchgear (GIS), compound combined electrical equipment (HGIS), porcelain knob breaker, potting breaker scheme.For narrow field, populous, High aititude, heavy pollution area, typical case's (standard) recommends design to adopt GIS scheme.Such scheme is modularized design, and general layout is mainly divided into three regions by power distribution equipment electric pressure, 500kV and 220kV all adopts GIS device, is arranged in the both sides of transformer station, and main transformer and 35kV power distribution equipment are arranged between the two.Its technical characteristics is: floor space is minimum, and equipment investment is high, is convenient to the selection of substation location, the especially populous and nervous area of land used.
Along with the continuous expansion of China's power grid construction scale, and the anxiety of land use resource, the siting of station difficulty of transformer station is also in continuous increase.Be mainly reflected in: for outlying district especially in Southwestern China area, its complex geologic conditions, mountain region is more, limits the selection of substation location; In addition, day by day narrow for its transmission of electricity corridor, developed regions, land use is nervous and expensive, causes constraint to the addressing of transformer station.Therefore, the floor space of transformer station is less, is more beneficial to the addressing of transformer station, and has saved valuable land resources.In existing 500kV outdoor substation general layout scheme, GIS scheme floor space is minimum, but due to the size of equipment own and the air gap requirement, the narrow and small especially or limited area in site landform, adopts this arrangement still possibly cannot meet arrangement requirement.
Summary of the invention
For now at present transformer station's general layout Problems existing and deficiency, provide a kind of 500kV transformer station general layout structure, concrete technical scheme is as follows:
A kind of 500kV transformer station general layout structure, comprise region 2, No. 1, two, a region, main transformer 3,500kV power distribution equipment 4 are arranged on region 1, a 220kV power distribution equipment 5,35kV power distribution equipment 6 is arranged on No. two regions 2, and described No. two regions 2 adopt double-decker.
Alternately, above-mentioned a kind of 500kV transformer station general layout structure, a described region 1 is positioned at the east side in No. two regions 2.
Alternately, above-mentioned a kind of 500kV transformer station general layout structure, described main transformer 3 is arranged in the west side that 500kV distribution fills 4.
Alternately, above-mentioned a kind of 500kV transformer station general layout structure, described No. two regions 2 arrange a platform 7, and bottom arranges post 9 and supports; Described 220kV power distribution equipment 5 is arranged in above platform, and described 35kV power distribution equipment 6 is arranged and is below platform.
Alternately, above-mentioned a kind of 500kV transformer station general layout structure, described platform 7 is frame construction.
Alternately, above-mentioned a kind of 500kV transformer station general layout structure, the high 8.0m of described platform 7, is of a size of 21.7m × 123m.
Alternately, above-mentioned a kind of 500kV transformer station general layout structure, described 220kV power distribution equipment 5 outlet structure is framework 8, and described framework 8 is arranged on the top of post 9, outgoing line interval width 14m, and outlet structure hanging wire point height is 20m.
Alternately, above-mentioned a kind of 500kV transformer station general layout structure, the headway under described platform 7 is 7m.
Alternately, above-mentioned a kind of 500kV transformer station general layout structure, the single-row layout of line breaker 10 of described 35kV power distribution equipment; Main bus-bar adopts pipe bus, and be arranged in parallel with main transformer 3, interval width is all 14m mutually with 220kV cubicle.
Alternately, above-mentioned a kind of 500kV transformer station general layout structure, adopts the 35kV copper pipe bus 23 that insulate to be connected between main transformer 3 low-pressure side with 35kV power distribution equipment bus 24.
In sum, owing to have employed technique scheme, the beneficial effects of the utility model are:
1,35kV and 220kV power distribution equipment is arranged in Same Site by arranging a platform by the utility model, forms double-deck stereo arrangement form.Meanwhile, be different from indoor substation, two-layerly up and down all enclosure wall be not set.This arrangement, has saved the occupation of land of 35kV power distribution equipment, and the floor space of transformer station general layout is greatly reduced.Transformer station's floor space is greatly saved, characteristics of compact layout, but do not increase equipment investment.
2,220kV outlet structure and the integrated design of power distribution equipment platform framework post.The frame column basis of platform outgoing line side upwards extends further and builds outlet structure, steel structure can adopt lattice.Make to make in this way
1) characteristics of compact layout, floor space is little.
2) take full advantage of the structure of platform itself, save steel and civilwork engineering quantity.
3) line-outgoing equipment and drawing of circuit is facilitated to connect.
3, main transformer transport routes are arranged in main transformer low-pressure side, and cancel 500kV main transformer inlet wire framework, utilize the direct inlet wire of inlet wire device support, effectively can save floor space, main transformer and 500kV power distribution equipment are arranged in the same area, more compact and comparatively economy.
4, main transformer low-pressure side and 35kV bus adopt the copper pipe bus that insulate to be connected, and while meeting main transformer transport and safe distance requirement, do not need the height increasing 220kV platform, economy is very high, and reduces the difficulty of inlet wire.
In a word, the utility model makes power distribution equipment change 2 regions into by common 3 regions, and in standing, road is saved, more compact.
Accompanying drawing explanation
The utility model illustrates by example and with reference to the mode of accompanying drawing, wherein:
Fig. 1 is that the utility model implements general arrangement plan (comprising No. two region one decks);
Fig. 2 is the utility model No. two region second layers;
Fig. 3 is that the utility model implements main transformer 500kV side inlet wire profile;
Fig. 4 is that the utility model implements 220kV and 35kV power distribution equipment rebuilding profile;
Fig. 5 is that the utility model implements 35 kV Side of Main Transformer inlet wire profile.
Reference numeral: 1 is a region, 2 is No. two regions, 3 is main transformer, 4 is 500kV power distribution equipment, 5 is 220kV power distribution equipment, 6 is 35kV power distribution equipment, 7 is platform, 8 is framework, 9 is post, 10 is line breaker, 11 is main control building, 12 is framework lightning rod, 13 is pump house and pond, 14 is little of fire-fighting, 15 is between fire fighting equipment, 16 install factory building land used for reserved, 17 is road, 18 is electricity consumption room, station, 19 is 500kV GIS, 20 is 500kV capacitance type potential transformer, 21 is 500kV metal oxide arrester, 22 is flexible circuit conductor, 23 is 35kV buses of insulation tubes, 24 is 35kV power distribution equipment bus.
Detailed description of the invention
All features disclosed in this manual, or the step in disclosed all methods or process, except mutually exclusive feature and/or step, all can combine by any way.
The purpose of this utility model is in the reliability not reducing design, and under taking into full account the prerequisite of economy, by reasonable Arrangement power distribution equipment, the floor space of transformer station is reduced, on 500kV transformer station GIS arrangement basis, realize a kind of compact 500kV transformer station general layout scheme, reach and economize the land resource, meet the layout needs of narrow and small especially landform site.
The utility model reduces transformer station floor space by adopting following measures to reach, and realizes the compact general layout of 500kV transformer station:
(1) cubic design concept is introduced to the general layout of 500kV outdoor substation, adopt rebuilding mode, 35kV power distribution equipment 6 and 220kV power distribution equipment 5 are arranged in Same Site;
Be different from the general mentality of designing of 500kV outdoor substation, 35kV power distribution equipment 6 and 220kV power distribution equipment 5 are arranged in Same Site by the utility model, implementation is: on this place, arrange 1 framework platform 7,220kV power distribution equipment 6 is arranged above platform 7, and 35kV power distribution equipment 5 is arranged in platform 7 times, form double-deck stereo arrangement form.Meanwhile, be different from indoor substation, two-layerly up and down all enclosure wall be not set.This arrangement, has saved the occupation of land of 35kV power distribution equipment 6, and the floor space of transformer station general layout is greatly reduced.
In addition, adopt double-deck stereo arrangement, 35kV power distribution equipment 6 equipment can adopt conventional open style equipment, without the need to increasing equipment investment, and economically feasible.
(2) 220kV outlet structure and the integrated design of power distribution equipment platform framework post.
After adopting double-deck stereo arrangement form, 220kV power distribution equipment 6 is arranged on platform 7, as in the usual way 220kV outlet structure being arranged in platform 7 times, is unfavorable for saving floor occupying area.
The utility model proposes 220kV outlet structure, with the integrated design of platform framework post, the frame column basis of platform outgoing line side upwards extends further and builds outlet structure, steel structure can adopt lattice, namely described 220kV power distribution equipment 5 outlet structure is framework 8, described framework 8 is arranged on the top of post 9, and described framework 8 is integrated with post 9.This mode advantage is adopted to be:
1) characteristics of compact layout, floor space is little;
2) take full advantage of the structure of platform itself, save steel and civilwork engineering quantity;
3) line-outgoing equipment and drawing of circuit is facilitated to connect.
(3) main transformer transport routes are arranged in main transformer low-pressure side, cancel 500kV main transformer inlet wire framework, utilize the direct inlet wire of inlet wire device support;
Conventional 500kV transformer station, main transformer and 35kV power distribution equipment are arranged in Same Site, and separate with transport routes between 500kV power distribution equipment.500kV main transformer wire leading method is generally and arranges main transformer inlet wire framework, is connected with 500kV power distribution equipment across road.
Under 35kV has been arranged in 220kV power distribution equipment platform, main transformer transport routes and main transformer 3 and 220kV power distribution equipment intersite road have united two into one by the utility model, are arranged in main transformer 3 low-pressure side.Usually the road be arranged between main transformer 3 and 500kV power distribution equipment then can be cancelled, and saves floor occupying area.Adopt this arrangement, 500kV main transformer inlet wire, due to without the need to crossing over road, can cancel main transformer framework, inlet wire device support is utilized to get final product direct inlet wire, simultaneously effectively can save floor space, main transformer and 500kV power distribution equipment are arranged in the same area, more compact and comparatively economy.
(4) main transformer low-pressure side and 35kV bus adopt the copper pipe bus that insulate to be connected.
Conventional 500kV transformer station, main transformer and 35kV power distribution equipment are arranged in Same Site, and main transformer low-pressure side inlet wire adopts bare conductor to connect usually.
Under 35kV power distribution equipment 6 is arranged in 220kV power distribution equipment 5 platform, and separate with transport routes between main transformer 3.Main transformer 3 low-pressure side connects as adopted bare conductor, and for meeting main transformer transport and safe distance requirement, will increase the height of 220kV platform, economy is not good, adds the difficulty of inlet wire simultaneously.The utility model introduces new technology and new technology, and main transformer 3 low-pressure side and 35kV bus adopt 35kV insulation burrel pipe bus to be connected, and makes layout more compact, safe and reliable.
This station is as adopted conventional outdoor GIS scheme, then site condition cannot meet arrangement requirement.And adopt indoor substation or underground substation scheme, certainly will great amount of investment be increased.Adopt the utility model Technological Economy rationally more reasonable, detailed description of the invention is as follows:
(1) the final scale of transformer station:
Main transformer: 2 groups of 750MVA transformers;
500kV outlet: outlet 7 times altogether;
220kV outlet: outlet 8 times altogether;
35kV reactive-load compensation: final scale every platform main transformer low-pressure side installs 3 groups of 60Mvar low pressure shunt reactors.
(2) electrical main connecting wire
500kV wiring: 3/2 wiring adopting mature and reliable;
220kV wiring: adopt double bus scheme;
35kV wiring: adopt single bus scheme, often organizes bus fanout operation, does not arrange main breaker.
(1) main equipment selection
Main transformer: adopt split transport, Assembling three-phase is coupling certainly, off circuit tap changing transfor mer;
500kV equipment: adopt GIS device;
220kV equipment: adopt GIS device;
35kV equipment: adopt porcelain knob breaker, low pressure shunt reactor adopts oil immersed type.
(5) electrically general layout and each power distribution equipment are arranged
1) general electric arrangement
Place, this engineering site is very narrow and small, limits by geological security scope, and scope can be utilized more limited.You compare great hillside, west side, place, and geology cranny development must be dodged in east side.Consider the conditions such as landform, geology and outlet during general electric arrangement, in the middle part of using area, geological conditions is better as far as possible, the region that terrain slope comparatively delays.
According to place situation, it is comparatively reasonable that electric general layout East and West direction is arranged.As shown in Figure 1: full station general electric arrangement is divided into two regions to arrange: main transformer and 500kV power distribution equipment 4 are arranged in east side, district of standing, an i.e. region 1, consider from the outlet orientation angles of circuit, 500kV east, south, the direction outlet of three, north, as ABC outlet; 220kV power distribution equipment 6 and 35kV power distribution equipment 5 are arranged in west side, district of standing, i.e. No. two regions, and adopt double-deck stereoization to arrange, 220kV is outlet westwards.No. 1, two, a described region is separated with road in the middle of region 2.
2) main transformer and 500kV power distribution equipment
Main transformer 3 and 500kV power distribution equipment 4 are arranged in east side, district, station, and three the direction outlets in north of the 500kV southeast, are shown in ABC outlet.500kV power distribution equipment is outdoor GIS device, 2 row parallel framework, interval width 29m, parallel framework spacing 30m.Main transformer 3 is arranged in the west side of 500kV power distribution equipment, adopts split transport, Assembling three-phase transformer.2 main transformer north-south " " fonts are arranged, main transformer foundation north-south arranges track, are convenient to carrying, reserved main transformer install place needed for factory building in No. 2 main transformer southern sides.
Because 35kV power distribution equipment 6 is not arranged in main transformer 3 place, utilize main transformer low-pressure side road as main transformer transport routes, between main transformer 3 and 500kV power distribution equipment 4, no longer road is set, saves floor occupying area, and comparatively economical.As shown in Figure 3,500kV main transformer 3 inlet wire adopts inlet wire device support flexible circuit conductor 22 wire leading method. by flexible circuit conductor 22,500kV GIS19,500kV capacitance type potential transformer 20,500kV metal oxide arrester 21 are coupled together with main transformer 3.
3) 220kV and 35kV power distribution equipment
220kV and 35kV power distribution equipment is arranged in west side, district, station, adopts double-deck stereoization to arrange.220kV power distribution equipment 5 is arranged in framework platform 7 upper strata, and as shown in Figure 2, outlet westwards, 35kV power distribution equipment 6 is arranged in bottom, as shown in Figure 1.
Dual-layer stereo arrangement is as shown in Figure 4:
220kV power distribution equipment is outdoor GIS device, is arranged on the framework platform of high 8.0m, is of a size of 21.7m × 123m.Outlet structure is lattice, and with the integrated design of platform outgoing line side frame column, namely described 220kV power distribution equipment 5 outlet structure is framework 8, and described framework 8 is arranged on the top of post 9, and described framework 8 is integrated with post 9. adopt " one " font to arrange.Outgoing line interval width 14m, outlet structure hanging wire point height is 20m.220kV main transformer inlet wire adopts flexible circuit conductor 22 inlet wire.
35kV power distribution equipment 6 is arranged in framework platform 7 times, and headway is 7m.35kV power distribution equipment 7 is medium-sized outside room, the single-row layout of line breaker 10, and main bus-bar adopts pipe bus, and be arranged in parallel with main transformer, interval width, in conjunction with the frame construction of platform, is all 14m mutually with 220kV cubicle.35kV inlet wire does not install main breaker.
As shown in Figure 5, because 35kV inlet wire needs to cross over road, more compact, safe and reliable for making to arrange, adopt the 35kV copper pipe bus that insulate to be connected between main transformer low-pressure side with 35kV bus
The utility model is not limited to aforesaid detailed description of the invention.The utility model expands to any new feature of disclosing in this manual or any combination newly, and the step of the arbitrary new method disclosed or process or any combination newly.
Claims (10)
1. a 500kV transformer station general layout structure, it is characterized in that: comprise a region (1), No. two regions (2), main transformer (3), 500kV power distribution equipment (4) are arranged on a region (1), 220kV power distribution equipment (5), 35kV power distribution equipment (6) are arranged on No. two regions (2), and described No. two regions (2) adopt double-decker.
2. a kind of 500kV transformer station as claimed in claim 1 general layout structure, is characterized in that: a described region (1) is positioned at the east side of No. two regions (2).
3. a kind of 500kV transformer station as claimed in claim 1 general layout structure, is characterized in that: described main transformer (3) is arranged in the west side of 500kV distribution dress (4).
4. a kind of 500kV transformer station as claimed in claim 1 general layout structure, is characterized in that: described No. two regions (2) arrange a platform (7), and bottom arranges post (9) and supports; Described 220kV power distribution equipment (5) is arranged in above platform, and described 35kV power distribution equipment (6) layout is below platform.
5. a kind of 500kV transformer station as claimed in claim 4 general layout structure, is characterized in that: described platform (7) is frame construction.
6. a kind of 500kV transformer station as claimed in claim 4 general layout structure, is characterized in that: described platform (7) high 8.0m, is of a size of 21.7m × 123m.
7. a kind of 500kV transformer station as claimed in claim 4 general layout structure, it is characterized in that: described 220kV power distribution equipment (5) outlet structure is framework (8), described framework (8) is arranged on the top of post (9), outgoing line interval width 14m, and outlet structure hanging wire point height is 20m.
8. a kind of 500kV transformer station as claimed in claim 4 general layout structure, is characterized in that: the headway under described platform (7) is 7m.
9. a kind of 500kV transformer station as claimed in claim 4 general layout structure, is characterized in that: line breaker (10) the single-row layout of described 35kV power distribution equipment; Main bus-bar adopts pipe bus, and be arranged in parallel with main transformer (3), interval width is all 14m mutually with 220kV cubicle.
10. a kind of 500kV transformer station as claimed in claim 1 general layout structure, is characterized in that: adopt the 35kV copper pipe bus (23) that insulate to be connected between main transformer (3) low-pressure side with 35kV power distribution equipment bus (24).
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110318563A (en) * | 2019-06-18 | 2019-10-11 | 佛山电力设计院有限公司 | A kind of 3 buildings arrangement formula substation |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110318563A (en) * | 2019-06-18 | 2019-10-11 | 佛山电力设计院有限公司 | A kind of 3 buildings arrangement formula substation |
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