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A method and system for testing unbalanced tension of ice-coated conductors of transmission lines

A transmission line and tension test technology, which is applied in the direction of tension measurement, mechanical component testing, force/torque/power measuring instrument, etc., can solve the problem that the transmission line span is too large, the test model is single, and one line parameter cannot be carried out too much Change and other issues to achieve the effect of narrowing requirements, reducing difficulty and risk

Active Publication Date: 2019-08-06
HUZHOU ELECTRIC POWER SUPPLY CO OF STATE GRID ZHEJIANG ELECTRIC POWER CO LTD +2
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  • Application Information

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Problems solved by technology

For the analysis of the longitudinal unbalanced tension of transmission lines, researchers and designers generally focus on theoretical calculations and finite element analysis, and there are few studies on unbalanced tension tests. One very important reason is that the transmission line span is too large and the test is difficult. And the cost is very high, and the parameters of a line cannot be changed too much, and the test model is single

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  • A method and system for testing unbalanced tension of ice-coated conductors of transmission lines
  • A method and system for testing unbalanced tension of ice-coated conductors of transmission lines
  • A method and system for testing unbalanced tension of ice-coated conductors of transmission lines

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Embodiment Construction

[0038] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments.

[0039] Such as figure 1 In the shown embodiment, a power transmission line conductor icing unbalanced tension test system includes a positioning mechanism for positioning the conductor 5, a displacement detection device for detecting the horizontal displacement of the conductor, and a tension gauge for detecting the stress on the conductor. detection device. Positioning mechanism comprises the left fixed pulley 7 that cooperates with lead left end and the right fixed pulley 10 that cooperates with lead right end, and left fixed pulley and right fixed pulley are positioned at same level. The right end of the wire is connected to an actuator 1, the actuator is an MTS actuator, and the left end of the wire is connected to a horizontal tension simulation device 6, which can provide precise tension on the wire.

[0040] The middle part of the wire...

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Abstract

The invention discloses a transmission line wire ice coating unbalanced tension testing method and system. The system comprises a positioning mechanism used for positioning a wire, a displacement detection device used for detecting the horizontal displacement of the wire and a tension detection device used for detecting a stress condition of the wire, wherein one end of the wire is connected withan actuator, the other end of the wire is connected with a horizontal tension simulation device, the middle part of the wire is connected with a suspension string, and the wire is suspended with a heavy object below the suspension string. The invention aims to provide a transmission line wire ice coating unbalanced tension testing method and system capable of reducing the occupation for a test site and reducing the test difficulty.

Description

technical field [0001] The invention belongs to the field of transmission line testing, in particular to a method and system for testing the unbalanced tension of ice-covered conductors of a transmission line. Background technique [0002] Since the transmission line towers are erected in the outdoor environment, various meteorological disasters may cause damage to the transmission line towers, especially in winter overhead wires and towers are easy to be covered with ice. The main reason why the tower even skewed down. In many areas of our country, there have been accidents such as flashover, disconnection, tower collapse and other accidents caused by the increase of the load of the transmission line due to the icing of the conductor, which has caused huge economic losses to the society. For example, in January 2008, heavy snow fell all over the country, and transmission lines in several southern provinces encountered ice and snow disasters that were rare in history. Stron...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01M13/00G01L5/04
CPCG01L5/04G01L5/045G01M13/00
Inventor 朱奕弢潘少良张文杰张大长陈焱彬吴凯李浩言王瑶蒋锋蒋伟王伟张翼
Owner HUZHOU ELECTRIC POWER SUPPLY CO OF STATE GRID ZHEJIANG ELECTRIC POWER CO LTD
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