CN203312636U

CN203312636U - Double-flying dragonfly outgoing line arranging structure of 220 kilovolt outdoor GIS

Info

Publication number: CN203312636U
Application number: CN2013204010713U
Authority: CN
Inventors: 陈飞; 高美金; 高亚栋; 徐世泽; 王淑红; 周惠文; 侯健生; 徐俞音; 胡宇鹏
Original assignee: Economic and Technological Research Institute of State Grid Zhejiang Electric Power Co Ltd; State Grid Corp of China SGCC
Current assignee: Economic and Technological Research Institute of State Grid Zhejiang Electric Power Co Ltd; State Grid Corp of China SGCC
Priority date: 2013-07-06
Filing date: 2013-07-06
Publication date: 2013-11-27
Anticipated expiration: 2023-07-06

Abstract

The utility model discloses a 220 kV outdoor GIS double-flying outlet line layout structure. Conventional outdoor GIS is limited by the width of the outlet gantry, so that the overall outlet side size of the substation has not been reduced due to the use of GIS equipment. The technical solution of the utility model is characterized in that the outlet frame includes a vertical steel pipe rod and six outlet cross arms formed on the steel pipe rod, all the outlet cross arms are perpendicular to the steel pipe rod, and the six outlet cross arms It is distributed in upper, middle and lower layers, and each layer is composed of two outlet cross arms located on both sides of the steel pipe pole, and the outlet cross arms of any layer are spatially connected to the same side outlet cross arms of the other two layers. dislocation. The utility model simplifies the outgoing line structure of the outdoor GIS power distribution device and compresses the lateral dimension, which can significantly reduce the occupied area and the length of the 220kV GIS busbar.

Description

A kind of 220 kilovolts of outdoor GIS round trip flight dragonfly outlet arrangements

Technical field

The utility model 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 the plant maintenance workload 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 use such as expropriation of land, removal, reparation, 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 adopts full overhead outlet, due to the restriction that there is no building, can give full play to the characteristics of GIS flexible arrangement, thereby play 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 limit, and State Grid Corporation of China's modular design suggested design 220 KV distribution device gate type framework minimum widiths are 12m.Due to the restriction that is subjected to outlet door frame width, make the overall outgoing line side size of transformer station 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 soil, improve the utilance in soil.

Summary of the invention

Technical problem to be solved in the utility model is to overcome the defect that above-mentioned prior art exists, a kind of 220 kilovolts of outdoor GIS round trip flight dragonfly outlet arrangements are provided, it improves and optimizes outdoor GIS outgoing line interval arrangement, reduce the overall outgoing line side lateral dimension of transformer station, floor space in compression transformer station enclosure wall, save electric outgoing line corridor.

For this reason, the utility model 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, the six roots of sensation outlet cross-arm that described outlet structure comprises an erect-type steel pipe pole and forms on 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, by wire, be connected with the outer end hanging wire point of the outlet cross-arm that is positioned at the outlet casing tube top respectively again, be used in conjunction with and form the vertical overhead outlet of upper, middle and lower-ranking double back by two GIS outgoing line intervals and an outlet structure.

The utility model is simplified outdoor GIS power distribution equipment outlet structure, the lateral dimension compression; In the horizontal range between adjacent outlet wire, meet under the prerequisite that electrical safety requires, 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 supplement, the utility model is taked following technical measures:

Further, between two of described middle level outlet cross-arms, form 180 degree angles; Outlet cross-arm in upper strata is preferably 45-55 degree (most preferably being 52 degree) with the outlet cross-arm dislocation drift angle of middle level homonymy respectively, between two outlet cross-arms on upper strata, forms 70-90 degree angle; Lower floor's outlet cross-arm also is preferably 45-55 degree (most preferably being 52 degree) with the outlet cross-arm dislocation drift angle of middle level homonymy 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 the other two linearly extension of phase line bendings again, 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 upper strata the outlet cross-arm directly over be provided with one be used to hanging the lightning conducter cross-arm of 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 be take steel pipe pole as axle is symmetrical set, and make the both sides of steel pipe pole stressed evenly, and structure is more stable.

The utility model compresses the outgoing line side lateral dimension of outdoor GIS power distribution equipment, because lightning arrester is built-in, singly return back out the line interval width and can be reduced to 6 meters, double back outgoing line interval width 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.

The accompanying drawing explanation

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 utility model.

Fig. 3 is the floor plan schematic diagram of the utility model GIS power distribution equipment.

Fig. 4 is the structural representation of the utility model outlet structure.

Fig. 5 is the vertical view of the utility model lower floor outlet cross-arm.

Fig. 6 is the vertical view of the utility model middle level outlet cross-arm.

Fig. 7 is the vertical view of the utility model upper strata outlet cross-arm.

Embodiment

Below in conjunction with specification drawings and specific embodiments, the utility model is further described.

220 kilovolts of outdoor GIS round trip flight dragonfly outlet arrangements as 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, 8,9,10 horizontal positioned of each GIS outgoing line interval, a phase line 8 is perpendicular to bus 2, other two phase lines, 9,10 linearly extensions 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 is comprised of erect-type steel pipe pole 3 independently and the six roots of sensation outlet cross-arm that forms on steel pipe pole, all outlet cross-arms are all vertical with steel pipe pole, described six roots of sensation outlet cross-arm is the distribution of three layers of upper, middle and lower, every layer forms and take steel pipe pole and is symmetrical set as axle 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.Between two outlet cross-arms 5 in middle level, form 180 degree angles; 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, between two outlet cross-arms 6 on upper strata, forms 70-90 degree angle; Lower floor's outlet cross-arm is also 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, then by wire (A, B, C), are connected with the outer end hanging wire point of the outlet cross-arm that is positioned at the outlet casing tube top respectively; 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 with the vertical outlet casing tube arranged by wire.By two GIS outgoing line intervals and an outlet structure, be used in conjunction with and form the vertical overhead outlet of upper, middle and lower-ranking double back.

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 upper strata the outlet cross-arm directly over be provided be used to hanging the lightning conducter cross-arm 11 of 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, be only preferred embodiment of the present utility model, not structure of the present utility model done to any pro forma restriction.Every foundation technical spirit of the present utility model, to any simple modification, equivalent variations and modification that above embodiment does, all falls in protection range of the present utility model.

Claims

1. A 220 kV outdoor GIS double-flying fly outlet layout structure, comprising at least two GIS outlet intervals (1) and at least one outlet frame, the at least two GIS outlet intervals (1) passing through the bus bar (2) arranged horizontally ) connection, it is characterized in that, the described outgoing line frame comprises a vertical steel pipe pole (3) and six outgoing line cross arms formed on the steel pipe pole, all outgoing line cross arms are all perpendicular to the steel pipe pole, and the described six outgoing line cross arms are vertical to the steel pipe pole. The poles are distributed in upper, middle and lower layers, and each layer is composed of two outgoing line cross arms located on both sides of the steel pipe pole, and the outgoing line cross arms of any layer are spatially connected to the same side outgoing line cross arms of the other two layers. Take the wrong place;

There are three horizontally placed phase wires (8, 9, 10) in each GIS outlet interval, and the three phase wires are respectively led up by three vertically arranged outlet sleeves (7), and then pass through the wires and the wires located at the outlet respectively. The outlet cross-arm above the bushing is connected with the hanging point at the outer end, and two GIS outlet intervals and an outlet frame are used together to form the upper, middle and lower three-layer double-circuit vertical overhead outlets.

2. The 220 kV outdoor GIS double-flying-fly outgoing line layout structure according to claim 1 is characterized in that, an angle of 180 degrees is formed between the two outgoing line cross-arms (5) of the middle layer; The misalignment angle of the cross-arms (5) on the same side of the middle layer is 45-55 degrees, and the angle between the two outgoing cross-arms (6) of the upper layer is 70-90 degrees; The cross-arm (5) dislocation deflection angle is also 45-55 degree, and also forms 70-90 degree included angle between the two outgoing line cross-arms (4) of lower floor.

3. According to claim 1 or 2, the 220 kV outdoor GIS double-flying outlet layout structure is characterized in that, the lightning arrester for the GIS outlet interval is built-in, and a phase line (8) is perpendicular to the busbar (2), and in addition The two phase wires (9, 10) are extended in a straight line and then bent, so that the three outlet sleeves (7) are arranged in a vertical line.

4. The 220 kV outdoor GIS double-flying outlet wiring layout structure according to claim 3, characterized in that the horizontal distance between adjacent phase lines is 0.5-0.7 meters, the distance between adjacent bushings is 3.0-3.5 meters, and the outgoing line The distance between the center of the frame and the outlet casing (7) is 3.3-3.5 meters.

5. According to claim 1 or 2, the 220 kV outdoor GIS double-flying outlet layout structure is characterized in that the vertical distance between the three outlet cross-arm hanging points on the same side is 3.5-3.8 meters, and the outlets located on the lower floor The line-hanging point of the cross-arm (4) is 9-9.5 meters above the ground, and the height difference between adjacent outlet cross-arms on the same side is 5.0-5.5 meters.

6. The 220 kV outdoor GIS double-flying outlet cable layout structure according to claim 1 or 2, characterized in that a lightning conductor cross arm (11) for suspending lightning conductors is provided directly above the upper layer outlet cross arm.

7. The 220 kV outdoor GIS double-flying-fly outgoing line layout structure according to claim 6, characterized in that the height difference between the lightning protection line cross arm (11) and the upper outgoing line cross arm is 4-4.5m.

8. The 220 kV outdoor GIS double-flying outlet layout structure according to claim 1 or 2, characterized in that the two outlet crossarms in each layer of outlet crossarms are arranged symmetrically with the steel pipe pole as the axis.