Manual icing testing system based on natural condition and testing method of the manual icing testing system

A test system and natural condition technology, applied in the field of icing test systems, can solve the problems of great differences in icing states, construction costs of millions or even millions, and rising costs, so as to increase research content and flexibility , increase continuity and integrity, and prolong the effect of the test cycle

Inactive Publication Date: 2012-10-17
STATE GRID HENAN ELECTRIC POWER ELECTRIC POWER SCI RES INST +1
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  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, the scale of the artificial climate chamber is generally small, and the length, width and height of the internal space are all within the range of a few meters, which is far from simulating the scale of the actual line; in addition, the test conditions are completely adjusted manually, and the icing of the wires is done under natural conditions. The phenomenon formed, the artificial climate cannot completely replace the icing process of the wire under natural conditions; the cost of the artificial climate chamber is very high, and the construction cost of a 4-meter-square laboratory can easily be millions or even millions. Larger-scale laboratories Its cost has doubled, increasing the economic cost and burden of experimental research
[0006] Thirdly, at present, icing measurements are mostly carried out under the condition that the icing conductors are only subjected to gravity, and most of the natural icing test stations use straight-line icing conductors; Realize the icing test of short-distance line stalls within a few meters, which is very different from the icing state of the actual line
Secondly, most measurement systems display the collected data on the instrument for reading, such test data is not real-time and incomplete
In addition, the current commercial online monitoring instruments are mainly powered by solar batteries, and power outages often occur during the test, resulting in intermittent and incomplete data collection.

Method used

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  • Manual icing testing system based on natural condition and testing method of the manual icing testing system
  • Manual icing testing system based on natural condition and testing method of the manual icing testing system

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Embodiment Construction

[0035] The invention is applied to the field of ice coating test research of high-voltage transmission lines ranging from 110kV to 500kV.

[0036] The test site of the present invention is located at the top of Jianshan Mountain in Xinmi City, Henan Province, where the comprehensive test base for real-type transmission lines is located, with an altitude of more than 800 meters. The average temperature in this area is about 5°C lower than that in the urban area of ​​Zhengzhou City. There are about 6 months of the year in the Jianshan area where the temperature is below zero every day and the winter time is long, so it has good low temperature resources.

[0037] Such as figure 1 As shown, the present invention includes a test field, a pole system, a spray system and a measurement system. The pole system runs north-south, with 9 concrete poles 1 in total, forming a rectangle of 50m×4m, divided into 3 columns from east to west, each column consisting of 3 concrete poles 1, and t...

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Abstract

The invention discloses a manual icing testing system based on natural condition. The manual icing testing system comprises a measuring system, wherein the measuring system comprises a testing field, a wire rod system and a spraying system; the wire rod system is erected on the testing field; the wire rod system comprises concrete rods arranged in parallel; two layers of leads in parallel are erected up and down are erected on each row of concrete rods; two leads are arranged at each layer; the leads and the concrete rods are connected through insulators; the spraying system comprises a spraying pipeline; the spraying pipeline is parallel to the leads at the upper layer; and the spraying pipeline is provided with nozzles facing downwards. With the adoption of the manual icing testing system based on natural condition, related by the invention, the natural environment condition can be utilized well; the advantages of the natural condition and the natural environment condition can be combined; the defect that testing is carried out only depending on the natural condition is made up; the manual interference is carried out pointedly; the testing time (period) is prolonged; and ideal parameters of the testing environment can be obtained.

Description

technical field [0001] The invention relates to the field of ice coating tests, in particular to an ice coating test system. Background technique [0002] Faults caused by icing on transmission lines have always been one of the serious natural disasters in power systems at home and abroad, and there is no complete solution to the icing disaster so far. At the same time, icing on the line can easily cause galloping, which can lead to more serious disasters. The research on line icing is of great significance to the safe and reliable operation of the power grid and even the national economy. The artificial icing test system based on natural conditions is a test system platform that combines natural conditions with artificial intervention, and at the same time makes up for the shortcomings of the two, and simulates natural conditions (freezing rain, snow and other meteorological conditions) for experimental research. [0003] At present, one of the existing icing test station...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01D21/00
Inventor 阎东韩金华寇晓适任欢杨威杨晓辉卢明陈瑞吕中宾庞锴张宇鹏曹宏伟魏建林张博朱华
Owner STATE GRID HENAN ELECTRIC POWER ELECTRIC POWER SCI RES INST
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