摘要
变压器油在投运后会产生H_2、CO、CO_2和低分子烃类等气体,气体溶解和逸散受到环境温度、压力和油自身组成、溶解饱和程度、系统密封性等因素影响。为解决油样脱气量少、密封性较差等影响变压器故障判断准确性的问题,从平衡气在油样检测过程中的作用、饱和程度和体系密封性对溶解的影响等角度进行了模拟试验和研究,并与气体溶解平衡原理相结合,提出"定量进气法"和"母液稀释法"两种标准样品配制方法及装置。
H 2, CO, CO 2 and low molecular hydrocarbon gases are generated when the transformer oil is put into operation. Both dissolution and dissipation may be affected by such factors as the temperature and pressure of the environment, oil composition, saturation degree and system tightness. In order to solve the problems influencing transformer fault judgment accuracy, like small degassing amount and poor sealing, an experimental research has been conducted on the role the balance gas plays in oil sample detection process and the influence of the saturation degree and system tightness on dissolution. Combined with the dissolved gas balance principle, two standard sample preparation methods and devices -the ″quantitative gas intake method″ and the ″mother liquor dilution method″-are proposed.
作者
王海飞
WANG Haifei(Technology Center of China Electric Power International Co. , Ltd. , Suzhou 215123, China)
出处
《安徽电气工程职业技术学院学报》
2019年第1期33-41,共9页
Journal of Anhui Electrical Engineering Professional Technique College
关键词
变压器油
溶解气体
气液平衡
油样配制
transformer oil
dissolved gases
gas-liquid equilibrium
oil sample preparation
