An observation device for metal dust adsorption and accumulation charge of gis or gil equipment
A technology of metal dust and observation device, which is applied in the field of metal particle movement behavior and surface charge measurement, gas-solid interface electrical insulation, and achieves the effect of comprehensive functions and convenient control
Active Publication Date: 2021-02-02
NORTH CHINA ELECTRIC POWER UNIV (BAODING)
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Problems solved by technology
[0007] The purpose of the present invention is to overcome the deficiencies of the existing devices, to provide an observation device for gas-insulated metal-enclosed switch (GIS) or gas-insulated metal-enclosed transmission line (GIL) equipment, which can simultaneously observe the dynamic adsorption and The interaction of accumulating charges on the gas-solid interface prevents and prevents flashover faults along the surface of equipment in GIS / GIL
Method used
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Embodiment 1
[0054] In order to simulate the pot insulators used in actual GIS / GIL equipment, the pilot test uses scaled pot insulators, and the metal particles use metal aluminum powder, which is convenient for simulating the active adsorption behavior of dust and segmenting the adsorption process.
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The invention provides an observation device for a gas-insulated metal-enclosed switch (GIS) or a gas-insulated metal-enclosed transmission line (GIL), which can simultaneously observe the dynamic adsorption of metal dust and the accumulated charge at the gas-solid interface, and can At the same time, it is of great significance to realize the rapid and accurate measurement of the surface charge of the insulating part and the observation of the dust adsorption behavior for the analysis of the interaction law between the surface charge accumulation and the metal dust adsorption in GIS / GIL, and to control the flashover fault.
Description
technical field [0001] The invention belongs to the field of gas-solid interface electrical insulation, in particular to the field of motion behavior and surface charge measurement of metal particles adsorbed on the surface of gas-insulated metal-enclosed switch (GIS) or gas-insulated metal-enclosed transmission line (GIL) equipment. Background technique [0002] Adsorption of metal particles in gas-insulated metal-enclosed switchgear (GIS) or gas-insulated metal-enclosed transmission line (GIL) equipment and charge accumulation on the surface of the insulator are the main factors that cause flashover faults along the surface of GIS / GIL equipment, accounting for 10% of the total failure rate. above 50. Most of the adsorbed metal particles are metal dust at the micron or even nanometer level. Take the basin insulator fault as an example. Deposited on the surface of insulators, causing flashover failure of insulators. While the metal dust is adsorbed on the surface of the in...
Claims
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IPC IPC(8): G01R29/24G01R31/12G01C11/04
CPCG01C11/04G01R29/24G01R31/1218G01R31/1254
Inventor 李庆民梁瑞雪王健胡琦王靖瑞常亚楠
Owner NORTH CHINA ELECTRIC POWER UNIV (BAODING)