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
CN104820175AInactive Publication Date: 2015-08-05STATE GRID ANHUI ELECTRIC POWER +2
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Patent Information

Authority / Receiving Office
CN · China
Current Assignee / Owner
STATE GRID ANHUI ELECTRIC POWER
Publication Date
2015-08-05
Estimated Expiration
Not applicable · inactive patent

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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.
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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...

Claims

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