变压器油色谱在线监测装置的现场评估分析

Site evaluation analysis on online monitoring device for transformer insulating oil chromatography

采用自主研发的标油模拟装置制备标油油样,通过在线与离线色谱分析系统进行对比测试,对天津电网油色谱在线监测装置的准确性进行评价,为油色谱在线监测装置选型及日常运行维护提供参考依据。结果表明:天津地区主要在线监测装置灵敏度和测量误差基本满足要求,采用顶空法脱气方式及固态微桥式检测器的在线装置具有更高的测量准确度和稳定性。

Uses independent developed simulation device making standard oil sample, compares the test results obtaining from on-line and off-line chromatography analysis system, evaluates the veracity of the on line monitoring device of transformer insulating oil chromatography in Tianjin power grid, pro?vides the referrence for choice type and operation maintenance of oil chromatography on-line monitor?ing device. The result shows that (1)the sensitivity and measure error of the on-line monitoring devices in Tianjin power grid satisfy the requirements. (2)the on-line monitoring devices using empty top meth?od eliminating gas and using solid state tiny bridge tester have higher measure veracity and stability.