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750kV composite cross arm transposition tower

A transposition tower and cross-arm technology, which is applied in the field of transmission line poles and towers, can solve the problems of high terrain conditions, large tower base footprint, and limited use range, etc., to achieve wide application range, reduce floor space, The effect of single base cost reduction

Active Publication Date: 2016-11-09
CENT SOUTHERN CHINA ELECTRIC POWER DESIGN INST CHINA POWER ENG CONSULTING GROUP CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The original tower scheme adopts a transposition tower with double busbars. There are three iron towers in total. The cost of the main body is high, and the tower base occupies a large area. It has high requirements on terrain conditions, which limits its scope of use.

Method used

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  • 750kV composite cross arm transposition tower
  • 750kV composite cross arm transposition tower

Examples

Experimental program
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Embodiment Construction

[0018] The present invention will be further described below in conjunction with the accompanying drawings and embodiments.

[0019] Such as figure 2 As shown, a 750kV composite cross-arm transposition tower includes a ground wire support 2 arranged on the top of the tower body 1, a wire cross-arm 3 arranged in the middle of the tower body 1, and a three-phase line is arranged on the transposition tower. The phase line includes the inner phase line, the middle phase line and the outer phase line. One side 4 of the inner side phase line is arranged on the rear side of the inner end 3.1 of the conductor cross arm, and one side 6 of the middle phase line is arranged on the upper rear side of the tower body 1. , one side 8 of the outer phase line is set on the rear side of the outer end 3.2 of the conductor cross arm; On the front side of the upper part, the two sides 5 of the outer phase line are arranged on the front side of the outer end part 3.2 of the conductor cross arm; ...

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PUM

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Abstract

The invention discloses a 750kV composite cross arm transposition tower using composite cross arms and armour clamps to support a horizontal jumper wire, so the horizontal jumper wire can be parallel to the lead cross arm, thus realizing outer side phase-composite cross arm transposition cross arms-inner lower hard jumper wire-inner side phase transposition; the jumper wire string length can be reduced by 7cm, so the corresponding pole and tower body full height can be reduced by 7cm, thus reducing single base construction cost by at least 29%, reducing tower footing land occupation area, and improving transposition tower adaptability on landforms; the 750kV composite cross arm transposition tower is not limited by landform conditions, and wide in application scope.

Description

technical field [0001] The invention belongs to the field of power transmission line towers, in particular to a 750kV composite cross-arm transposition tower. Background technique [0002] At present, my country's 750kV transmission lines generally use transposition towers with double busbar frames, that is, three-base independent iron towers are used, and a tension tower and two busbar frames are used to complete the transposition. Such as figure 1 As shown, the 750kV transposition tower with double busbar frame adopts a single-circuit tension tower combined with two busbar frames to complete the transposition, from the inner phase-inside hard jumper-middle phase, middle phase-outside hard Jumper - outer phase, outer phase - sub-tower - inner hard jumper - inner phase to achieve three-phase transposition. The original tower scheme adopted a transposition tower with double busbars. There are three iron towers in total. The cost of the main body is high, the base of the tow...

Claims

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Application Information

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IPC IPC(8): E04H12/00E04H12/24
CPCE04H12/00E04H12/24
Inventor 柏晓路李健黄欲成张瑚刘文勋吕健双吴高波周魁肖明杰雷雨泽
Owner CENT SOUTHERN CHINA ELECTRIC POWER DESIGN INST CHINA POWER ENG CONSULTING GROUP CORP