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Device and method for rainfall test of transmission line tower

A technology for rain test and transmission line, which is applied in the direction of measuring device, measuring electricity, measuring electrical variables, etc., can solve the problems of large deviation between the test results and the actual situation, inaccurate test results, affecting the application of towers, etc., to achieve the acidity of rainwater. Adjustable, adjustable rainfall size, easy to implement effects

Inactive Publication Date: 2013-08-07
ELECTRIC POWER RESEARCH INSTITUTE, CHINA SOUTHERN POWER GRID CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, due to the large deviation between this test method and the actual environment of the tower, it is easy to cause a large deviation between the test results and the actual situation, and the test results are not accurate enough, which will affect the actual application of the tower.

Method used

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  • Device and method for rainfall test of transmission line tower

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] Select nozzles 3 with a spray angle of 180°, an aperture size of 0.2mm, a spray distance of 1m, and a rain rate of 0.1mm / min, and install the nozzles 3 in two rows of 8 in a compact Right below the pole tower 1 manufactured by transmission line processing. Connect the wire 2 to the tower 1, and hang it in the air 20m above the ground, and adjust the distance between the wire 2 and the tower 1. The nozzle 3 is connected to the water outlet of the water pump 4 through a high-pressure rubber pipe, and the water inlet of the water pump 4 is connected to the water tank 5, and the test water of PH=7 is injected into the water tank 5. The wire 2 is connected to the power supply device 6, and the power supply device 6 is a 7200kV impulse voltage generator. The impulse voltage generator sends out the impulse voltage, and the nozzle 3 sprays water on the wire 2 and the pole tower 1 to carry out the rain test. Preferably, there is also a detection device, which can detect the wo...

Embodiment 2

[0027] Select the nozzle 3 with a spray angle of 150°, an aperture size of 3mm, a spray distance of 6m, and a rain rate of 2mm / min, and install the nozzle 3 in two rows of 8 nozzles in accordance with the 500kV high-altitude compact transmission line Directly below the pole tower 1 manufactured by processing. Connect the wire 2 to the tower 1, and hang it in the air 30m above the ground, and adjust the distance between the wire 2 and the tower 1. The nozzle 3 is connected to the water outlet of the water pump 4 through a high-pressure rubber pipe, and the water inlet of the water pump 4 is directly connected to the water tank 5, and the test water with PH=5 is injected into the water tank 5. The wire 2 is connected to the power supply device 6, and the power supply device 6 is a 1600kV DC voltage generator. The direct current voltage generator sends direct current, and the nozzle 3 sprays water to the wire 2 and the pole tower 1 to carry out the rain test. Preferably, there ...

Embodiment 3

[0029] Select the nozzle 3 with a spray angle of 60°, an aperture size of 5mm, a spray distance of 9m, and a rain rate of 4mm / min, and install the nozzles 3 in a row of 8 on a 500kV high-altitude compact transmission line Directly below the pole tower 1 manufactured by processing. Connect the wire 2 to the tower 1, and hang it in the air 20m above the ground, and adjust the distance between the wire 2 and the tower 1. The nozzle 3 is connected to the water outlet of the water pump 4 through a high-pressure rubber pipe, and the water inlet of the water pump 4 is connected to the water tank 5, and the test water of PH=4 is injected into the water tank 5. The wire 2 is connected to the power supply device 6, and the power supply device 6 is a 500kV power frequency test transformer. The power frequency test transformer sends out alternating current, and the nozzle 3 sprays water on the wire 2 and the pole tower 1 to carry out the rain test. Preferably, there is also a detection ...

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Abstract

The invention discloses a device and a method for a rainfall test of a transmission line tower. The device comprises a tower, wires, nozzles, a water supply device and a power supply device. The wires are fixed in the tower, and the nozzles are located above the wires and fixed right under the tower. The power supply device supplies power to the wires, the nozzles are connected with the water supply device, and the tower and the wires are sprayed with water to simulate various states in the rain. The water supply device comprises a water pump and a water tank. The method for the rainfall test includes nozzles required in the test are selected to be fixed right under the tower, the power supply device supplies power for the wires, the water tank and the water pump are used for providing water for the nozzles which spray water to the tower and the wires to simulate various states in the rain to perform the rainfall test. The rainfall test provided by device and the method is wide in voltage ranges, adjustable in rainfalls and adjustable in acidity of the rainfalls, and is applicable to transmission line towers with a voltage class of over 110 kV (kilovolt)..

Description

technical field [0001] The invention relates to a device and method for rain test of power transmission line towers. Background technique [0002] In order to avoid the harm of corona discharge and induced electrostatic field to human beings, high-voltage and ultra-high-voltage transmission lines must be erected at sufficiently high places. The pole tower is erected on the ground, it is the support used to support the transmission line in the overhead transmission line, and it is one of the most important devices in the transmission line device. At present, with the development of my country's economy, the voltage level of transmission lines has jumped from the early 110kV to 1000kV, which has higher requirements for the quality and safety performance of transmission line towers. [0003] The erection environment of transmission line towers is relatively complicated, and natural environmental factors such as wind, sand, rain and snow will affect the use of towers. In pract...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01R31/00
Inventor 高超陈枫林杨芸曾向君王黎明
Owner ELECTRIC POWER RESEARCH INSTITUTE, CHINA SOUTHERN POWER GRID CO LTD
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