摘要
针对浙江省3座特高压变电站1 000 kV线路高抗CO和CO_2浓度持续攀升现象,调取了2015年1月至2016年8月线路高抗油色谱在线监测数据,分析了CO和CO_2的浓度和产气速率,以及特征比值的变化趋势,获得了CO和CO_2的产气规律,为1 000 kV线路高抗的在线监测和故障诊断研究奠定基础。结果表明:1 000 kV线路高抗CO和CO_2气体浓度持续攀升属于正常现象,其产气规律基本相同,即随着运行时间的增加,CO和CO_2浓度呈不断上升趋势;CO和CO_2产气速率呈先上升后下降再上升趋势;特征比值呈先降低后增长再降低的趋势。
Based on the fact that the concentrations of CO and CO2 in high voltage reactors of 1 000 kV lines of three ultra-high voltage substations in Zhejiang province became increasingly high,online monitored oil chromatogram data of high voltage reactors from January 2015 to August 2016 is obtained to analyze concentrations and generation rates of CO and CO2 as well as the development trend of their characteristic ratio to conclude the generation regularity for the purpose of laying a foundation for online monitoring and fault diagnosis for high voltage reactors of 1 000 kV lines.The result shows that it is normal that the concentrations of CO and CO2 keep rising,and the generation regularity of them is identical,meaning with the increase of operation time,the concentrations of CO and CO2 continued to increase;the generation rates of CO and CO2 increase first,then decline,and finally increase again;the characteristic ratio shows a trend of decline first,then increases,finally declines again.
出处
《浙江电力》
2017年第3期24-29,共6页
Zhejiang Electric Power
关键词
特高压变电站
高压并联电抗器
CO
CO2
浓度
产气速率
特征比值
ultra-high voltage substation
high-voltage parallel reactor
CO
CO2
concentration
gas generation rate
characteristic ratio
