Method for testing the influences of different metal materials on SF6 direct current PD decomposition
An experimental method and metal material technology, applied in the experimental field of the influence of different metal materials on the decomposition of SF6 DC PD, can solve the problem that the influence characteristics and action mechanisms of different metal materials cannot be clarified.
Inactive Publication Date: 2017-07-11
ELECTRIC POWER RES INST OF GUANGDONG POWER GRID
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[0005] The embodiment of the present invention provides an experimental method for the influence of different metal materials on the decomposition of SF6 DC PD, which solves the problem of the lack of direct current conditions in the research on the online monitoring of gas-insulated electrical equipment in the prior art and the PD decomposition of SF6 gas under different metal materials. However, it is impossible to clarify the technical problems of the influence characteristics and mechanism of different metal materials on the decomposition process of SF6 positive DC PD.
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[0027] The embodiment of the present invention provides an experimental method for the influence of different metal materials on the decomposition of SF6 DC PD, which is used to solve the problem of the lack of direct current conditions in the research on the online monitoring of gas-insulated electrical equipment in the prior art and the impact of SF6 gas PD under different metal materials. The research on the impact of decomposition cannot clarify the technical issues of the characteristics and mechanism of the influence of different metal materials on the decomposition process of SF6 positive DC PD.
[0028] In order to make the purpose, features and advantages of the present invention more obvious and understandable, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the following The described embodiments are ...
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Abstract
The embodiments of the invention disclose a method for testing the influences of different metal materials on SF6 direct current PD decomposition, which is designed to solve the problems that in the research on online monitoring of gas-insulated electrical equipment in the prior art, little work is done on the research on the influence of the direct current condition and different metal materials on the PD decomposition of SF6 gas, and that the influencing characteristics and the working mechanism of different metal materials on the SF6 positive direct current PD decomposition process cannot be sorted out. The method of the embodiments comprises of detecting the SF6 direct current PD decomposition components under the protrusion defect models of different metal materials in the identical local power discharge condition.
Description
technical field [0001] The invention relates to the technical field of on-line insulation monitoring and diagnosis of gas electrical insulation equipment, in particular to an experimental method for the influence of different metal materials on SF6 DC PD decomposition. Background technique [0002] Gas Insulated Switchgear (GIS) refers to a metal-enclosed device that uses sulfur hexafluoride (SF6) gas as an insulating medium in whole or in part. It has a compact structure, a small footprint, high reliability, and easy maintenance. Small quantity, convenient on-site installation, small electromagnetic radiation, strong environmental adaptability and other advantages, it has been widely used at home and abroad. As GIS is used more and more widely and the voltage level is getting higher and higher, its importance in the power system is becoming more and more prominent. GIS failure will pose a huge threat to the safety of the power system and seriously affect the continuity and ...
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IPC IPC(8): G01R31/12G01N30/02
CPCG01R31/1254G01N30/02
Inventor 唐念李丽樊小鹏周永言黎晓淀邹庄磊
Owner ELECTRIC POWER RES INST OF GUANGDONG POWER GRID