Ice-coated test system for transmission line structure

Abstract

The invention is an ice-coated test system for a transmission line system, which is characterized by comprising a spraying system, a refrigerating system, a model system, a measuring system and a defrosting system, wherein the spraying system and the defrosting system are arranged above the model system; the measuring system and the model system are arranged in parallel; the refrigerating system is arranged at both sides of the defrosting system, and the space of the refrigerating system is communicated with the space of the defrosting system; by lowering the air temperature in the test space by the refrigerating system, the spraying system performs simulated rainfall, ice coating is generated by condensed spray on the model system under the joint action of the simulated rainfall of the spraying system and the lower-temperature air of the refrigerating system, the measuring system measures the ice coating diameter, traces and acquires the complete test data, the defrosting system performs defrosting on the ice coating and melts the ice coating so as to finish the test, thus having the capability of simulating the forming process of the ice coating, realizing accurate measuring and enabling the ice coating to be defrosted quickly. The invention provides a technical support for basically solving the ice coating in the transmission line.

Description

technical field [0001] The invention relates to an icing test system for a power transmission line structure. Background technique [0002] Icing is a natural disaster for power systems. The transmission line is the main artery of the power system and an important lifeline project related to the national economy and the people's livelihood. The direct impact of icing on the transmission line will lead to the collapse of the transmission line and the disconnection of the transmission line, which will directly lead to the interruption of power transmission, and the paralysis of almost all social industries, resulting in huge economic losses. [0003] The hazards of icing to transmission lines are as follows: ①The vertical load of the tower is increased or overloaded, the strength of the tower is damaged, and the tower and cross arm are seriously deformed or collapsed; ②The horizontal operating stress of the conductor exceeds the average operating stress, causing the vertical l...

AI Technical Summary

Problems solved by technology

[0004] In January 2008, low-temperature icing disasters ravaged 21 provinces and regions in China. The disaster weather lasted for a long time, affected a wide range, and caused serious damage, which brought great damage to electricity and transportation. The power grid lines were damaged, which seriously affected the normal power supply. People's lives and property and industrial and agricultural production suffered heavy losses, causing a total of 151.65 billion yuan in direct economic losses.

[0005] Due to the special meteorological characteristics of icing disasters and the limitation of measurement methods, there are insufficient understandings of the formation mechanism of icing on transmission lines.

Images