CN103354319A - 220kV outdoor GIS double-dragonfly-type outlet wire arrangement structure - Google Patents
220kV outdoor GIS double-dragonfly-type outlet wire arrangement structure Download PDFInfo
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- CN103354319A CN103354319A CN2013102827921A CN201310282792A CN103354319A CN 103354319 A CN103354319 A CN 103354319A CN 2013102827921 A CN2013102827921 A CN 2013102827921A CN 201310282792 A CN201310282792 A CN 201310282792A CN 103354319 A CN103354319 A CN 103354319A
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Abstract
The invention discloses a 220kV outdoor GIS double-dragonfly-type outlet wire arrangement structure. Although a GIS is adopted, the size of a total wire outlet side of a transformer substation is not reduced because of the width limitation of an outlet wire door frame of a conventional outdoor GIS. The technical scheme provided by the invention is characterized in that a wire outlet structure includes a vertical steel pipe pole and six wire outlet cross arms formed on the steel pipe pole. The wire outlet cross arms are all perpendicular to the steel pipe pole. The six wire outlet cross arms are distributed in three layers including an upper layer, a middle layer and a lower layer. Each of the layers is composed of two of the wire outlet cross arms disposed on two sides of the steel pipe pole respectively and the wire outlet cross arms in each layer are arranged in a staggered manner with the wire outlet cross arms on the same side and in the other layers. Double-loop vertical overhead wire outlet arrangement in the upper layer, the middle layer and the lower layer is formed through the cooperatively use of two GIS wire outlet intervals and the wire outlet structure. According to the invention, the wire outlet structure of the outdoor GIS power distribution device is simplified, the transverse size is reduced, floor space occupancy can be reduced distinctively and length of a 220kV GIS bus is reduced.
Description
Technical field
The present invention relates to power equipment arrangement and outlet structure, specifically a kind of 220 kilovolts of outdoor GIS round trip flight dragonfly outlet arrangements.
Background technology
Development along with electrical network, transformer station's quantity is in continuous increase, soil reserved resources wretched insufficiency, site expropriation of land, removal expense increase day by day, especially at some urban central zones, land expropriation cost is obvious rising situation, and substation location is selected more and more difficulty, and it is current problem demanding prompt solution that transformer station saves the area.
At present, GIS equipment is a kind of intensive power equipment, improved that conventional equipment arrange to disperse that floor space is large, failure rate is high, Installation and Debugging and plant maintenance workload be large, the shortcomings such as long construction period, have advantages of characteristics of compact layout, exempt from (lacking) safeguard, operational reliability is high, greatly degree is saved land seizure, has reduced the expensive front-end fee usefulness such as expropriation of land, removal, reparations, meet the fundamental state policy that China saves the area, be widely used.
GIS equipment has two kinds of indoor layout and outdoor layouts, and with respect to indoor GIS scheme, outdoor GIS is general to adopt full overhead outlet, owing to there not being the restriction of building, can give full play to the characteristics of GIS flexible arrangement, thereby plays the effect of taking up an area of saving.But conventional outdoor GIS generally adopts A, B, the horizontal word order of C three-phase outlet casing tube at present, framework adopts miter gate's type framework level in one line, the sleeve pipe phase spacing is generally 3-3.5 rice, 3.75 meters of wire spaced apart, 2.75 meters of wired-AND gate structure centre-to-centre spacing are led on the limit, and State Grid Corporation of China's modular design suggested design 220 KV distribution device gate type framework minimum widiths are 12m.Owing to be subjected to the restriction of outlet door frame width, so that the overall outgoing line side size of transformer station is not because adopting GIS equipment to reduce.
Therefore, need to optimize GIS equipment outlet arrangement, reduce the outgoing line interval width, arrange power distribution equipment more compact, thereby save to greatest extent the soil, improve the utilance in soil.
Summary of the invention
Technical problem to be solved by this invention is to overcome the defective that above-mentioned prior art exists, a kind of 220 kilovolts of outdoor GIS round trip flight dragonfly outlet arrangements are provided, it improves outdoor GIS outgoing line interval arrangement and optimizes, reduce the overall outgoing line side lateral dimension of transformer station, floor space in the compression transformer station enclosure wall is saved electric outgoing line corridor.
For this reason, the present invention adopts following technical scheme: a kind of 220 kilovolts of outdoor GIS round trip flight dragonfly outlet arrangements, comprise at least two GIS outgoing line intervals and at least one outlet structure, described at least two GIS outgoing line intervals connect by the bus of horizontally set, it is characterized in that, described outlet structure comprises an erect-type steel pipe pole and the six roots of sensation outlet cross-arm that forms at steel pipe pole, all outlet cross-arms are all vertical with steel pipe pole, described six roots of sensation outlet cross-arm is presented, in, lower three layers of distribution, every layer forms by two outlet cross-arms that lay respectively at the steel pipe pole both sides, and the outlet cross-arm of one deck spatially all misplaces with other same side output terminal cross-arms of two layers arbitrarily;
Each GIS outgoing line interval has three phase lines that are horizontal positioned, described three phase lines are drawn by three vertical outlet casing tubes that arrange respectively, be connected with the outer end hanging wire point of the outlet cross-arm that is positioned at the outlet casing tube top respectively by wire again, be used in conjunction with by two GIS outgoing line intervals and an outlet structure and form two times vertical overhead outlets of upper, middle and lower-ranking.
The present invention simplifies outdoor GIS power distribution equipment outlet structure, the lateral dimension compression; Satisfy under the prerequisite that electrical safety requires in the horizontal range between the adjacent outlet wire, reduced the overall outgoing line side lateral dimension of transformer station, compressed floor space in transformer station's enclosure wall, saved electric outgoing line corridor.
As the further of technique scheme improved and replenish, the present invention takes following technical measures:
Further, form 180 degree angles between two of described middle level outlet cross-arms; Outlet cross-arm in upper strata is preferably 45-55 degree (most preferably being 52 degree) with the outlet cross-arm of middle level homonymy dislocation drift angle respectively, forms 70-90 degree angle between two outlet cross-arms on upper strata; Lower floor's outlet cross-arm also is preferably 45-55 degree (most preferably being 52 degree) with the outlet cross-arm of middle level homonymy dislocation drift angle respectively, also forms 70-90 degree angle between two outlet cross-arms of lower floor.Adopt the outlet structure of above-mentioned setting, make the compact overall structure of outlet structure.
Further, the lightning arrester of described GIS outgoing line interval is built-in, and a phase line is perpendicular to bus, and other two again bendings of the linearly extension of phase line make three outlet casing tubes be vertical word order, can further reduce the overall outgoing line side lateral dimension of transformer station.
Further, the level interval of adjacent phase line is 0.5-0.7 rice, and the spacing of adjacent casing is 3.0-3.5 rice, and the center of outlet structure and the spacing of outlet casing tube are 3.3-3.5 rice, guarantee the requirement of electrical safety distance.
Further, the fore-and-aft distance that is positioned at three outlet cross-arm hanging points of homonymy is 3.5-3.8 rice, it is 9-9.5 rice that the hanging wire that is positioned at the outlet cross-arm of lower floor is selected apart from ground level, and the difference in height between the adjacent outlet cross-arm of homonymy is 5.0-5.5 rice, guarantees the safe distance between the outlet wire.
Further, be positioned at the upper strata the outlet cross-arm directly over be provided with a lightning conducter cross-arm that be used for to hang lightning conducter.
Further, described lightning conducter cross-arm and the distance of the discrepancy in elevation between the outlet cross-arm on upper strata are preferably 4-4.5m, guarantee that the outlet wire is in the protection range of lightning arrester.
Further, two outlet cross-arms in every layer of outlet cross-arm are symmetrical arranged as axle is take steel pipe pole, make the both sides of steel pipe pole stressed evenly, and structure is more stable.
The present invention because lightning arrester is built-in, singly returns back out the outgoing line side lateral dimension compression of outdoor GIS power distribution equipment the line interval width and can be reduced to 6 meters, two line interval widths that return back out can be reduced to 12 meters, can significantly reduce floor space, reduce land expropriation cost, reduce 220kV GIS bus length, reduce the GIS cost, outlet structure is succinct, and steel material is saved, so overall investment is far smaller than conventional GIS power distribution equipment arrangement, the high area of soil land expropriation cost particularly, advantage is more obvious.
Description of drawings
Fig. 1 is the floor plan schematic diagram of existing conventional 220 kilovolts of outdoor GIS power distribution equipments.
Fig. 2 is structural representation of the present invention.
Fig. 3 is the floor plan schematic diagram of GIS power distribution equipment of the present invention.
Fig. 4 is the structural representation of outlet structure of the present invention.
Fig. 5 is the vertical view of lower floor of the present invention outlet cross-arm.
Fig. 6 is the vertical view of outlet cross-arm in middle level of the present invention.
Fig. 7 is the vertical view of outlet cross-arm in upper strata of the present invention.
Embodiment
The present invention is further illustrated below in conjunction with specification drawings and specific embodiments.
220 kilovolts of outdoor GIS round trip flight dragonfly outlet arrangements shown in Fig. 2-7, it is comprised of four GIS outgoing line intervals 1 and two outlet structures, described four GIS outgoing line intervals 1 connect by the bus 2 of two horizontally sets, and the lightning arrester of GIS outgoing line interval is built-in.Three phase lines 8 of each GIS outgoing line interval, 9,10 horizontal positioned, a phase line 8 is perpendicular to bus 2, other two phase lines 9,10 linearly extensions and outwards bending, make three outlet casing tubes be vertical word order, the level interval scope of adjacent phase line is 0.5-0.7 rice, the spacing range of adjacent casing is 3.0-3.5 rice, and the center of outlet structure and the spacing range of outlet casing tube are 3.3-3.5 rice.
Described outlet structure forms by erect-type steel pipe pole 3 independently with at the six roots of sensation outlet cross-arm that steel pipe pole forms, all outlet cross-arms are all vertical with steel pipe pole, described six roots of sensation outlet cross-arm is the three layers of distribution in upper, middle and lower, every layer forms by two outlet cross-arms that lay respectively at the steel pipe pole both sides and is symmetrical arranged as axle is take steel pipe pole, and the outlet cross-arm of one deck spatially all misplaces with other same side output terminal cross-arms of two layers arbitrarily.Form 180 degree angles between two outlet cross-arms 5 in middle level; Outlet cross-arm in upper strata is the 45-55 degree with the outlet cross-arm 5 dislocation drift angles of middle level homonymy respectively, forms 70-90 degree angle between two outlet cross-arms 6 on upper strata; Lower floor's outlet cross-arm also is the 45-55 degree with the outlet cross-arm 5 dislocation drift angles of middle level homonymy respectively, also forms 70-90 degree angle between two outlet cross-arms 4 of lower floor.
Described three phase lines are drawn by three vertical outlet casing tubes 7 that arrange respectively, are connected with the outer end hanging wire point of the outlet cross-arm that is positioned at the outlet casing tube top respectively by wire (A, B, C) again; The outer end hanging wire point that is positioned at three outlet cross-arms of opposite side is connected with three phase lines of another GIS outgoing line interval respectively by the outlet casing tube of wire with the setting of being connected.Be used in conjunction with by two GIS outgoing line intervals and an outlet structure and form that upper, middle and lower-ranking is two to return vertical overhead outlets.
The fore-and-aft distance scope that is positioned at three outlet cross-arm hanging points of homonymy is 3.5-3.8 rice, and it is 9-9.5 rice that the hanging wire that is positioned at the outlet cross-arm 4 of lower floor is selected apart from the ground level scope, and the difference in height scope between the adjacent outlet cross-arm of homonymy is 5.0-5.5 rice.
Be positioned at the upper strata the outlet cross-arm directly over be provided with for the lightning conducter cross-arm 11 that hangs lightning conducter, described lightning conducter cross-arm 11 and the discrepancy in elevation scope between the outlet cross-arm 6 on upper strata are 4-4.5m.
The above only is preferred embodiment of the present invention, is not structure of the present invention is done any pro forma restriction.Every foundation technical spirit of the present invention all falls within the scope of protection of the present invention any simple modification, equivalent variations and modification that above embodiment does.
Claims (8)
1. one kind 220 kilovolts outdoor GIS round trip flight dragonfly outlet arrangements, comprise at least two GIS outgoing line intervals (1) and at least one outlet structure, described at least two GIS outgoing line intervals (1) connect by the bus (2) of horizontally set, it is characterized in that, described outlet structure comprises an erect-type steel pipe pole (3) and the six roots of sensation outlet cross-arm that forms at steel pipe pole, all outlet cross-arms are all vertical with steel pipe pole, described six roots of sensation outlet cross-arm is presented, in, lower three layers of distribution, every layer forms by two outlet cross-arms that lay respectively at the steel pipe pole both sides, and the outlet cross-arm of one deck spatially all misplaces with other same side output terminal cross-arms of two layers arbitrarily;
Each GIS outgoing line interval has three phase lines (8,9,10) that are horizontal positioned, described three phase lines are drawn by three vertical outlet casing tubes (7) that arrange respectively, be connected by the outer end hanging wire point of wire with the outlet cross-arm that is positioned at the outlet casing tube top respectively again, be used in conjunction with by two GIS outgoing line intervals and an outlet structure and form two times vertical overhead outlets of upper, middle and lower-ranking.
2. 220 kilovolts of outdoor GIS round trip flight dragonfly outlet arrangements according to claim 1 is characterized in that, form 180 degree angles between two outlet cross-arms (5) in described middle level; Outlet cross-arm in upper strata is the 45-55 degree with the outlet cross-arm (5) of middle level homonymy dislocation drift angle respectively, forms 70-90 degree angle between two outlet cross-arms (6) on upper strata; Lower floor's outlet cross-arm also is the 45-55 degree with the outlet cross-arm (5) of middle level homonymy dislocation drift angle respectively, also forms 70-90 degree angle between two outlet cross-arms (4) of lower floor.
3. 220 kilovolts of outdoor GIS round trip flight dragonfly outlet arrangements according to claim 1 and 2, it is characterized in that, the lightning arrester of described GIS outgoing line interval is built-in, a phase line (8) is perpendicular to bus (2), again bending of other two phase lines (9,10) linearly extension makes three outlet casing tubes (7) be vertical word order.
4. 220 kilovolts of outdoor GIS round trip flight dragonfly outlet arrangements according to claim 3, it is characterized in that, the level interval of adjacent phase line is 0.5-0.7 rice, and the spacing of adjacent casing is 3.0-3.5 rice, and the spacing of the center of outlet structure and outlet casing tube (7) is 3.3-3.5 rice.
5. 220 kilovolts of outdoor GIS round trip flight dragonfly outlet arrangements according to claim 1 and 2, it is characterized in that, the fore-and-aft distance that is positioned at three outlet cross-arm hanging points of homonymy is 3.5-3.8 rice, it is 9-9.5 rice that the hanging wire that is positioned at the outlet cross-arm (4) of lower floor is selected apart from ground level, and the difference in height between the adjacent outlet cross-arm of homonymy is 5.0-5.5 rice.
6. 220 kilovolts of outdoor GIS round trip flight dragonfly outlet arrangements according to claim 1 and 2 is characterized in that, be positioned at upper strata outlet cross-arm directly over be provided with a lightning conducter cross-arm (11) that be used for to hang lightning conducter.
7. 220 kilovolts of outdoor GIS round trip flight dragonfly outlet arrangements according to claim 6 is characterized in that, the difference in height between described lightning conducter cross-arm (11) and the upper strata outlet cross-arm is 4-4.5m.
8. 220 kilovolts of outdoor GIS round trip flight dragonfly outlet arrangements according to claim 1 and 2 is characterized in that, two outlet cross-arms in every layer of outlet cross-arm are symmetrical arranged as axle is take steel pipe pole.
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Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
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CN107591684A (en) * | 2017-10-26 | 2018-01-16 | 中国电力工程顾问集团西北电力设计院有限公司 | A kind of 330kV transformer stations GIS vertical wire outlet structure |
CN107611783A (en) * | 2017-10-23 | 2018-01-19 | 国网浙江省电力公司经济技术研究院 | The back-to-back arrangement of brace type bus |
CN107706750A (en) * | 2017-11-03 | 2018-02-16 | 国网江苏省电力公司经济技术研究院 | Indoor GIS device roof outlet structure |
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Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
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CN107611783A (en) * | 2017-10-23 | 2018-01-19 | 国网浙江省电力公司经济技术研究院 | The back-to-back arrangement of brace type bus |
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CN107591684B (en) * | 2017-10-26 | 2024-03-15 | 中国电力工程顾问集团西北电力设计院有限公司 | Perpendicular outlet structure of 330kV transformer substation GIS |
CN107706750A (en) * | 2017-11-03 | 2018-02-16 | 国网江苏省电力公司经济技术研究院 | Indoor GIS device roof outlet structure |
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Address after: 100031 Xicheng District West Chang'an Avenue, No. 86, Beijing Patentee after: State Power Networks Co Patentee after: Zhejiang Huayun Electric Power Engineering Design Consulting Co., Ltd. Address before: 100031 Xicheng District West Chang'an Avenue, No. 86, Beijing Patentee before: State Power Networks Co Patentee before: Zhejiang Zhedian Economic Technology Research Institute |