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Three-phase tubular busbar vertical structure of 500kV transformer substation

A vertical structure, pipe busbar technology, applied in the installation of busbars, cable installation, electrical components, etc., can solve the problems of unfavorable substation overall design, inconvenient operation and maintenance of substation, large ground area, etc., to achieve easy operation and maintenance work, good economic benefits, and the effect of saving land resources

Active Publication Date: 2015-02-25
SOUTHWEST ELECTRIC POWER DESIGN INST OF CHINA POWER ENG CONSULTING GROUP CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, this line structure design needs to occupy a larger ground area, which is not conducive to optimizing the overall design of the substation's general plane, and is not convenient for the operation and maintenance of the substation.

Method used

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  • Three-phase tubular busbar vertical structure of 500kV transformer substation
  • Three-phase tubular busbar vertical structure of 500kV transformer substation
  • Three-phase tubular busbar vertical structure of 500kV transformer substation

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0021] like figure 1 As shown, a vertical structure of a three-phase pipe bus in a 500kV substation mainly includes A, B, and C three-phase pipe mothers 1 and pipe mother fixing hardware 5, post insulators 2 and supports 3, and the supports 3 are made of round steel pipes. Three supports 4 are welded and fixed sequentially from top to bottom on the bracket 3, and the supports 4 are respectively perpendicular to the bracket 3, and a terminal plate 8 is welded and fixed at one end of the support 4, and the terminal plate 8 is connected to the post insulator 2 are connected by bolts 6 and nuts 7 to facilitate disassembly and assembly in the construction process.

[0022] like figure 2 , image 3 As shown, the pipe female fixing hardware 5 is composed of a mounting seat 50, a lower splint 51 and an upper splint 52, and an arc-shaped groove is respectively arranged on the upper splint 52 and the lower splint 51, and the radius of the arc-shaped groove is uniform. It is equal to...

Embodiment 2

[0025] like Figure 4 , Figure 5 As shown, a through hole is set on the mounting seat 50 in the tube female fixing hardware 5, and the lower clamping plate 51 is hinged with the mounting seat 50 through the connecting pin 54 through the through hole, so that the lower clamping plate 51 can be relative to the mounting seat. 50 rotation, like this also can make pipe nut 1 can obtain certain cushioning when being subjected to strong vibration impacts such as earthquake, to guarantee the operation safety of pipe nut 1. Other structures are with embodiment 1.

[0026] After the 500kV substation adopts the above-mentioned three-phase pipe bus vertical structure, since the three post insulators 2 are parallel to each other and maintain a certain distance, the pipe mothers 1 are also parallel to each other and maintain a certain distance. The high voltage breaks down between the busbars 1 and ensures that the lead wires of the pipe busbars 1 of the A phase, B phase and C phase are ...

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Abstract

The invention provides a three-phase tubular busbar vertical structure of a 500kV transformer substation. The three-phase tubular busbar vertical structure comprises three tubular busbars, tubular busbar fixtures and a support. The tubular busbars are connected with the separated tubular busbar fixtures respectively. The support is in insulation connection of the tubular busbars and tubular busbar fixtures. The plane where the tubular busbars exist is perpendicular to the level ground. The distance between every two adjacent tubular busbars is 1.5m-2m. At the premise that the 500kV transformer substation safely runs, the whole width of the tubular busbars is reduced from the traditional 3.4m-4m to about 1.4m, and the whole length or width of the 500kV transformer substation is reduced by 2m-2.6m, thus the 500kV transformer substation is small is size, the equipment mounting, running and detecting is unaffected, precious land sources are saved, construction difficulty of the 500kV transformer substation is reduced, and running and maintenance of the 500kV transformer substation are facilitated.

Description

technical field [0001] The invention relates to the technical field of ultra-high voltage transmission line structures, in particular to a vertical structure of three-phase pipe busbars in a 500kV substation. Background technique [0002] In the ultra-high voltage transmission power system, there are A, B, and C three-phase power, and there are a large number of manifold busbars at 35kV or 66kV on the low-voltage side of the 500kV substation, that is, A, B, and C three-phase busbars. The design scheme of the phase tube bus is directly related to the construction investment benefit and the later operation quality of the substation. Usually, the plane where the A, B, and C three-phase busbars are located is parallel to the ground, but because the pipe busbar is mainly used for confluence, its length is usually equivalent to the width of the substation. The width is about 3.4m-4m. Therefore, this line structure design needs to occupy a larger ground area, which is not conduci...

Claims

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Application Information

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IPC IPC(8): H02G5/00
Inventor 李龙才吴怡敏余波冯小明张映桢邹家勇朱大鹏邢毅冯千秀尹大千冯川李珊珊骆玲王振华包维瀚
Owner SOUTHWEST ELECTRIC POWER DESIGN INST OF CHINA POWER ENG CONSULTING GROUP CORP
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