Study on Micro-water Measurement Method Based on SF6 Insulation Equipment in High Altitude Area

被引：0
|
作者：
Zhang, Han [1 ]
Liu, Yajin [1 ]
Yan, Jun [2 ]
Liu, Zhijian [1 ]
Yan, Yongfei [1 ]
机构：
[1] Kunming Univ Sci & Technol, Fac Elect Power Engn, Kunming 650500, Yunnan, Peoples R China
[2] Co Ltd Yunnan Power Grid, Logist Serv Ctr, Kunming 650500, Yunnan, Peoples R China
来源：
MATERIALS SCIENCE, ENERGY TECHNOLOGY AND POWER ENGINEERING II (MEP2018) | 2018年 / 1971卷
关键词：
Pressure; PVT features; SF6 electrical equipment; Pressure correction;
D O I：
10.1063/1.5041178
中图分类号：
TE [石油、天然气工业]; TK [能源与动力工程];
学科分类号：
0807 ; 0820 ;
摘要：
Moisture content is an important indicator of the insulation and arc extinguishing performance of SF6 insulated electrical equipment. The research shows that moisture measurements are strongly influenced by altitude pressures and the different order of pressure correction and temperature correction calculation, different calculation results will result. Therefore, in this paper, we studies the pressure and temperature environment based on moisture test of SF6 gas insulated equipment in power industry. Firstly, the PVT characteristics of pure SF6 gas and water vapor were analyzed and put forward the necessity of pressure correction, then combined the Pitzer-Veli equation of SF6 gas and Water Pitzer-Veli equation to fit PVT equation of state of SF6-H2O that suitable for electric power industry and deduced the Correction Formula of Moisture Measurement in SF6 Gas. Finally, through experiments, completion of the calibration formula optimization and verification SF6 electrical equipment on, proof of the applicability and effectiveness of the correction formula.
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页数：8
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