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550kn triple V-type suspension insulator strings for UHV transmission lines

A technology for hanging insulators and transmission lines, which is applied in the direction of suspension/strain insulators, circuits, insulators, etc. It can solve problems such as inability to meet engineering needs, and achieve the effects of strong resistance to uneven ice, good electromagnetic environment, and a wide range of applications

Active Publication Date: 2016-02-10
STATE GRID CORP OF CHINA +9
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Based on the above situation, the existing double-connected V-shaped suspension insulator strings can no longer meet the needs of the project

Method used

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  • 550kn triple V-type suspension insulator strings for UHV transmission lines
  • 550kn triple V-type suspension insulator strings for UHV transmission lines
  • 550kn triple V-type suspension insulator strings for UHV transmission lines

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Embodiment Construction

[0028] The invention designs a 550KN triple V-shaped suspension insulator string for a ±800kV extra-high voltage transmission line. The string type meets the load of 30mm, 50mm, 60mm six-split JLHA1 / G1A-800 / 55, JLHA1 / G2A-800 / 70 steel core aluminum alloy stranded conductors in heavy ice areas, flexible rotation of fittings, strong replaceability, and simple structure , Reliable strength and other functional requirements.

[0029] The design concept of the present invention is: one side of the triple V-type 550kN suspension insulator string is connected in series with a single iron tower hanging point and the triple 550kN suspension insulators are connected in series, and a V-string structure is formed by a variety of high-strength connection fittings in parallel, and then connected with the clamp The hanging plates are connected to form a string type of hanging single hanging point triple V-shaped 550kN hanging insulators. Detailed description below

[0030] figure 1 Shown i...

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Abstract

The invention relates to a 550 kN trigeminy V-shaped pendent insulator string form, at a unilateral side, a single iron tower hanging point is adopted to be connected with the trigeminy 550 kN pendent insulator string, and the hanging point and the insulator string are connected in parallel to form a V-shaped string structure through multiple high-strength connecting armor clamps, and then the structure is connected with a cable clamp hanging plate to form a pendent single-hanging point trigeminy V-shaped 550 kN pendent insulator string form. The string adopts trigeminy 550 kN insulators for parallel connection at each side, has the high strength of 1650 kN, is more reliable and wide in application range, and the requirement of a UHV direct-current transmission line heavy ice area on the strength of the pendent insulator string is met.

Description

technical field [0001] The invention relates to an insulator fitting string for a power transmission line, in particular to a 550KN triple V-shaped suspension insulator string for an extra-high voltage power transmission line. Background technique [0002] In order to meet the requirements of social and economic development on the capacity and reliability of the power grid, it has become a major trend in power grid construction to strengthen the power hub of west-to-east power transmission and develop UHV DC. UHV DC lines have the characteristics of high transmission capacity, large conductor cross-section, large number of splits, and heavy load on insulators. At the same time, due to the need for coordinated development with local planning, the terrain conditions of the line channel are getting worse and worse, and the heavy ice area has become an unavoidable section of the line path. [0003] The insulator strings of power transmission lines have different assembly types ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01B17/04H01B17/10H01B17/48
Inventor 唐巍孙涛李喜来王勇张华盛道伟刘正道朱长青刘翔云杨洋黄家圣周唯秦虹夏敏洪鑫华何健许劲松李振薛春林范峥袁志磊徐大成黄欲成赵全江薛永锋郭瑞张宁刚施芳吴启维马志坚
Owner STATE GRID CORP OF CHINA
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