Device and experimental method for researching insulating property of micro water containing SF6 gas

A gas-insulated, micro-water technology, used in measuring devices, instruments, testing dielectric strength, etc., can solve problems such as low efficiency, difficult to control the amount of water vapor, and poor accuracy

Inactive Publication Date: 2015-08-05
STATE GRID ANHUI ELECTRIC POWER +2
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  • Abstract
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Problems solved by technology

[0003] Existing studies containing slightly aqueous SF 6 The method of gas insulation properties, usually adopts the method of applying water film on the surface of the tank according to experience to simulate different humidity SF 6 G

Method used

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  • Device and experimental method for researching insulating property of micro water containing SF6 gas
  • Device and experimental method for researching insulating property of micro water containing SF6 gas

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Embodiment Construction

[0013] The purpose of the present invention is aimed at existing research containing micro-water SF 6 Insufficient research devices and experimental methods for gas insulation properties, providing a method that can precisely control SF 6 Gas temperature and humidity to study different humidity SF 6 The device and experimental method of insulating properties of gas at different temperatures have the characteristics of simple operation and high precision.

[0014] The present invention will be further described below in combination with specific embodiments.

[0015] In one embodiment, a study of slightly aqueous SF is disclosed 6 A device with gas insulation properties, the device includes a sampling mechanism, a tank body, a gas pipe, a high-voltage conductive rod, a barometer, a gas filling and deflated gas pipe, a first ball valve, a return mechanism, a second ball valve, a metal electrode, a low-voltage conductive rod, SF6 micro-water online monitoring unit and constant...

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Abstract

Provided are a device and an experimental method for researching the insulating property of micro water containing SF6 gas. The device is mainly composed of a stainless steel tank, a micro sampling mechanism, ball valves, a micro water on-line monitoring system, and a constant-temperature heating unit. According to the method, the temperature and humidity of SF6 gas in the tank are adjusted by the device, so that the insulating property of micro water containing SF6 gas at different temperatures can be researched. The temperature and humidity of SF6 gas can be controlled accurately, and the reliability and accuracy are high. The device is simple in structure and convenient to operate, and can be widely promoted.

Description

technical field [0001] The invention belongs to the field of protection against insulation defects of gas-insulated and enclosed combined electrical appliances (GIS), and in particular relates to SF under different temperatures. 6 Apparatus and experimental method for the study of insulation properties when the gas contains micro-water. Background technique [0002] Thanks to SF 6 The gas has high dielectric strength, excellent arc extinguishing performance, good insulation properties, and is non-toxic and stable in chemical properties. With the rapid development of the power industry, SF 6 GIS equipment with gas as insulating medium has been widely used. Usually, GIS will contain a certain amount of water vapor, the main source of which is: (1) SF 6 The water vapor contained in the fresh air; (2) the moisture introduced into the surrounding environment or the inflation valve and the inflation pipe during disassembly and maintenance or inflation and replenishment; (3) the...

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Application Information

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IPC IPC(8): G01R31/12G01R31/20
Inventor 赵军平马径坦文韬郭璨张乔根李金忠吴超张书琦游浩洋秦逸帆刘轩东庞磊郑浩王庆军朱胜龙
Owner STATE GRID ANHUI ELECTRIC POWER
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