GIS超高频局部放电检测方法的研究与应用

Research and Application of Detection Method of GIS Ultrahigh Frequency Partial Discharge

超高频局部放电带电检测技术已成为GIS电气设备局部放电检测的一种重要手段,本文介绍了自主研制的一种基于超高频检测理论的GIS局部放电带电检测系统,通过在高压试验室模拟局部放电试验和现场测试,获取了大量的试验数据和图谱,验证了超高频GIS局部放电检测系统运行稳定、正常,其所检测的数据和现场的实际情况吻合,具有实际意义。同时总结了现场应用经验和技术,为今后大庆油田开展GIS局部放电故障诊断起到了指导作用。

Detection technology of GIS ultrahigh frequency partial discharge and online has been a crucial measure in detecting partial discharge of GIS electrical equipment. The paper introduces the GIS partial discharge and online detection system based on theory of ultrahigh frequency detection independently. Through a mass of experimental data and atlases collected from simulation of partial discharge test in high voltage laboratory and field test, the paper verifies that detection system of GIS partial discharge is in a stable and normal operation, and test data tallies with the practical situation, it means the study has practical significance. Meanwhile, the paper summarizes field application experience and techniques, which plays a guiding role in carrying on malfimction diagnosis of GIS partial discharge in Daqing Oilfield.