CN207459403U - A kind of vertical wire outlet structure of compact 330kV substations GIS - Google Patents

Abstract

The utility model discloses a vertical outlet structure of a compact 330kV substation GIS, comprising a GIS outlet bushing, a lightning arrester, a vertical outlet tower, a cantilever beam, insulator strings and wires; an independent vertical outlet tower of a 330kV GIS distribution device, which is designed The cantilever beams on the upper, middle and lower floors are arranged in a "meter" shape, staggered up and down. A, B, and C three-phase bushings are longitudinally arranged at the bottom of the end of the three-story cantilever beam of the outlet tower, and the GIS outgoing line passes through the suspension insulator string at the end of the cantilever beam to transition to the strain insulator string outgoing line, and the three-phase conductors are arranged vertically; With the structure of the utility model, on the outgoing line side of the substation, the two outgoing lines share an independent vertical outgoing line tower, and the spatial arrangement of the wires is used to achieve the effect of compressing the outgoing line frame width, thereby reducing the outgoing line interval width, saving floor space, and saving It saves steel, and also saves the length of GIS main busbar, and reduces the cost of equipment.

Description

A Vertical Outlet Structure of Compact 330kV Substation GIS

technical field

The utility model belongs to the field of power transmission and transformation, in particular to a vertical outlet structure of a compact 330kV substation GIS.

Background technique

With the rapid development of power grid construction, the scale of ultra-high voltage substation projects is getting larger and larger, and the problem of large area occupied by conventional power distribution devices is becoming more and more prominent. Especially in some urban centers, the cost of land acquisition is on the rise, and the selection of substation sites is becoming more and more difficult. Improving the utilization of land resources is an issue that must be faced in power grid construction. As far as the design of high-voltage power distribution equipment in substations is concerned, gas-insulated metal-enclosed power distribution equipment (GIS) is an intensive power equipment. Outdoor GIS equipment is generally all overhead, and A, B, and C are arranged horizontally. The outlets of the herringbone-shaped frame are lined up. Due to the limitation of the width of the outgoing line gate structure, the overall width of the outgoing line side of the substation has not been reduced due to the use of GIS equipment, and the advantages of compact arrangement of GIS equipment have not been fully utilized, especially in high altitude areas. Therefore, optimize the outlet mode of the GIS power distribution device, reduce the width of the outlet line interval, and comprehensively consider the three-dimensional compact layout when designing the GIS power distribution device, the outlet frame, and the line corridor of the outlet circuit, so as to save land to the greatest extent and improve land use. The rate can provide technical support for the construction of subsequent substation projects, which is of great significance.

Utility model content

The purpose of this utility model is to solve the above-mentioned problems in the prior art and provide a compact 330kV substation GIS vertical outlet structure, which can reduce the width of the outlet interval, improve the utilization rate of land, and save equipment investment.

In order to achieve the above object, the technical solution adopted by the utility model is:

Including the vertical outlet tower, the vertical outlet tower has tower columns and A-phase cantilevered beams, B-phase cantilevered beams and C-phase cantilevered beams arranged on the tower columns according to different heights, A-phase cantilevered beams, and B-phase cantilevered beams. The cantilever beams and the C-phase cantilever beams are staggered on the top view plane, and the bottom of the vertical outlet tower is provided with outlet bushings corresponding to different phase cantilever beams; the A-phase cantilever beams, B-phase cantilever beams and C-phase cantilever beams The 330kV phase A, B, and C outgoing lines are respectively connected under the cantilever beams; the single vertical outgoing line tower is equipped with two outgoing lines, and the three-phase outgoing lines are vertically arranged in space through the cantilever beams of A, B, and C phases.

The tower column of the vertical outlet tower adopts a steel pipe structure; the cantilever beams of phases A, B and C all adopt a triangular beam lattice steel structure.

The cantilevered beams of phase A, phase B and cantilevered beams of phase C are provided with hanging wire rings.

The A-phase cantilevered beam, B-phase cantilevered beam and C-phase cantilevered beam are respectively connected to the outgoing lines of A, B, and C phases through tension insulator strings, and the outgoing lines of A, B, and C phases are led out to the Outlet casing.

A lightning arrester and a voltage transformer are arranged on the vertical outlet tower, and the lightning arrester is arranged longitudinally parallel to the outlet bushing.

A climbing ladder is provided on the column of the vertical outlet tower.

Compared with the prior art, the utility model staggers the cantilever beams of the upper, middle and lower floors of the vertical outlet tower up and down in a "meter" shape, so that the three-phase conductors are arranged vertically in space, and the space for the conductors is utilized. The way of arrangement achieves the effect of compressing the width of the outlet frame. The two outgoing lines share a vertical outgoing line tower, and the vertical arrangement of the wires can effectively compress the outgoing line interval width, save the floor area of the substation, reduce the amount of steel used in the frame, save the structural steel and civil construction infrastructure investment, and at the same time can Better coordination with line-side terminal tower wiring is more beneficial to line-side design. Since the interval width is reduced, and the GIS main busbar is usually arranged parallel to the frame beam, the length of the GIS main busbar is correspondingly reduced, which saves equipment investment. The wiring method of the wires on the vertical outlet tower of the utility model is different from that of the conventional gantry frame, and also compresses the length of the GIS pipeline bus, saving investment. After adopting the vertical outlet scheme, the connection with the double-circuit outlet of the line is smoother.

Description of drawings

Fig. 1 is the top view plane schematic diagram of the outlet structure of the utility model;

Fig. 2 is a schematic cross-sectional view of the outlet structure of the utility model;

Fig. 3 three-dimensional schematic diagram of the outlet structure of the utility model;

In the attached drawings: 1-outlet bushing; 2-lightning arrester; 3-voltage transformer; 4-phase A cantilever beam; 5-phase B cantilever beam; 6-phase C cantilever beam; 7-suspension insulator string; 8-wire.

Detailed ways

Below in conjunction with accompanying drawing, the utility model is described in further detail.

Referring to Fig. 1, the outlet structure of the present utility model includes a 330kV outlet bushing 1, a lightning arrester 2 and a vertical outlet tower;

The vertical outlet tower is equipped with three layers of cantilever beams, upper, middle and lower, and the cantilever beams are staggered up and down in the front and back, forming a "meter"-shaped arrangement; the single vertical outlet tower is equipped with two circuits of outlets, and the three-phase vertical longitudinal of the outlet bushing 1 Arrangement, the A-phase or C-phase outgoing wires of the two-circuit outgoing lines are drawn out through the lower cantilever beams, the B-phase outgoing lines are drawn out through the middle-level cantilever beams hanging insulator string jumpers, the C-phase or A-phase outgoing lines are drawn out through the upper cantilever beams, and the three-phase suspension The beams are staggered back and forth, so that the three-phase outgoing lines are arranged vertically in space.

The lightning arrester 2 is arranged longitudinally parallel to the outlet bushing 1 .

The outlet bushing 1 of each GIS three-phase outlet in the utility model is longitudinally and vertically arranged, and the 330kV three-phase outlet passes through the suspension insulator string 7 at the end of the cantilever beam to transition to the strain insulator string 9 and leads to the outlet bushing 1 .

The tower column of the vertical outlet tower of the utility model adopts a steel pipe type steel structure, and the cantilever beams of phases A, B, and C all adopt a triangular beam lattice type steel structure. A climbing ladder is arranged on the tower column of the vertical outlet tower. The ends of the cantilever beams of phases A, B, and C are provided with hanging wire rings.

Referring to Figure 2-3, due to the use of vertical outlet towers, the wiring method is different from the conventional portal frame. The independent vertical outlet tower of the 330kVGIS power distribution device is equipped with cantilever beams on the upper, middle and lower floors, arranged in a "meter" shape. A, B, and C three-phase outlet bushings are arranged at the bottom of the cantilever beam end of the outlet tower, and the GIS outlet wire transitions to the outlet through the suspension insulator string at the end of the cantilever beam, and the three-phase conductors are arranged vertically. Due to the reduction of the interval width, the length of the GIS main busbar is correspondingly reduced, thereby saving equipment investment. After adopting the layout scheme of the vertical outlet tower, the connection with the line outlet is smoother. Among the two outgoing lines, phase C of the two outgoing lines is located at the bottom of the end of the cantilevered beam on the upper floor, phase B is located at the bottom of the end of the cantilevered beam on the middle floor, and phase A is located at the bottom of the end of the cantilevered beam on the lower floor, so as to meet the electrical safety requirements. The distance requirements effectively compress the interval width and save the occupied area.

The outlet method of the vertical outlet structure of the utility model can reduce the width of the outlet interval, reduce the amount of steel and the basic investment, and the facade is simple and beautiful, the construction and processing are simple and convenient, save the investment of the GIS main busbar, and have the advantages of more convenient installation, maintenance and operation. , safety, reliability and other characteristics, can be applied in engineering, and provides a new option for outlet design.

The above content is a further detailed description of the utility model in conjunction with the preferred embodiment. It cannot be determined that the specific embodiment of the utility model is limited to this. For those of ordinary skill in the art, without departing from the concept of the utility model , and some simple deduction or replacement can also be made, which should be regarded as belonging to the protection scope of the present utility model.

Claims (6)

1. a kind of vertical outlet structure of compact 330kV substation GIS, it is characterized in that: comprise vertical outlet tower, vertical outlet tower has tower column and is arranged on the A-phase cantilever beam (4) on the tower column by layering of different heights, B-phase cantilever beams (5) and C-phase cantilever beams (6), A-phase cantilever beams (4), B-phase cantilever beams (5) and C-phase cantilever beams (6) are staggered on the top view plane , the bottom of the vertical outlet tower is provided with outlet sleeves (1) corresponding to different phase cantilever beams; the A phase cantilever beam (4), B phase cantilever beam (5) and C phase cantilever beam (6 ) are connected to the 330kV phase A, B, and C outlets below; the single vertical outlet tower is equipped with two outlets, and the three-phase outlets are vertically arranged in space through the cantilever beams of A, B, and C phases. 2. According to the vertical outlet structure of the compact 330kV substation GIS of claim 1, it is characterized in that: the tower column of the vertical outlet tower adopts a steel pipe type steel structure; the cantilever beams of A, B, and C phases all adopt triangular beam lattice structure type steel structure. 3. according to the vertical outlet structure of the compact 330kV substation GIS of claim 1, it is characterized in that: the A-phase cantilevered beam (4), the B-phase cantilevered beam (5) and the C-phase cantilevered beam (6 ) is provided with a hanging wire ring. 4. The vertical outlet structure of the compact 330kV substation GIS according to claim 1, characterized in that: the phase A cantilevered beam (4), the phase B cantilevered beam (5) and the phase C cantilevered beam (6 ) through the tension insulator string (9) to connect the A, B, and C phase outgoing lines respectively, and lead the A, B, and C phase outgoing lines to the outgoing line bushing (1) through the suspension insulator string (7). 5. According to the vertical outlet structure of the compact 330kV substation GIS according to claim 1, it is characterized in that: the vertical outlet tower is provided with a lightning arrester (2) and a voltage transformer (3), and the lightning arrester (2) is longitudinally parallel to the outlet sleeve Tube (1) set. 6. The vertical outlet structure of the compact 330kV substation GIS according to claim 1, characterized in that: a ladder is provided on the column of the vertical outlet tower.