基于激光诱导击穿光谱的复合绝缘子老化诊断方法初探  

Primary Research on Ageing Diagnosis Method for Composite Insulator Based on Laser Induced Breakdown Spectrum

作　　者：王怡欣 任惠[1] 刘杰 贾伯岩 李允 谢铭涵 WANG Yixin;REN Hui;LIU Jie;JIA Boyan;LI Yun;XIE Minghan(State Key Laboratory of Alternate Electrical Power System with Renewable Energy Sources,North China Electric Power University,Baoding 071003,China;State Grid Hebei Electric Power Company Electric Power Research Institute,Shijiazhuang 050021,China;Fuping County Power Supply Branch of State Grid Hebei Electric Power Company,Baoding 073200,China)

机构地区：[1]华北电力大学新能源电力系统国家重点实验室,河北保定071003 [2]国网河北省电力有限公司电力科学研究院,河北石家庄050021 [3]国网河北省电力有限公司阜平县供电分公司,河北保定073200

出　　处：《绝缘材料》2020年第2期91-96,共6页Insulating Materials

摘　　要：以现场运行后的复合绝缘子为实验样品,初步探究了用激光诱导击穿光谱(LIBS)技术进行复合绝缘子老化程度检测的可行性。首先测试复合绝缘子伞裙表面和芯层的Si元素和Al元素含量,然后计算各元素含量浅深比,并对复合绝缘子进行憎水性、傅里叶红外光谱(FTIR)及硬度测试。结果表明:LIBS、憎水性、FTIR和硬度测试结果具有一致性,验证了LIBS技术用于分析复合绝缘子老化的可行性。通过元素含量浅深比可以很好地判断绝缘子的老化程度,浅深比数值越接近于1,老化程度越轻。Taking the composite insulator after field operation as experimental sample, the feasibility of using laser induced breakdown spectrum(LIBS) technology to detect the ageing degree of composite insulator was preliminarily studied. Firstly, the contents of Si and Al in the surface and center layer of composite insulator umbrella skirt were measured, then the shallow-depth ratio of each element content was calculated, and the composite insulator was conducted hydrophobicity test, Fourier infrared spectrum(FTIR)test, and hardness test. The results show that the test results of LIBS, hydrophobicity, FTIR, and hardness are consistent, which verifies the feasibility of LIBS technology for analyzing the ageing of composite insulator. The ageing degree of insulator can be well judged by the shallow-depth ratio of element content. The closer the shallow-depth ratio is to 1, the lighter the ageing degree is.

关 键 词：复合绝缘子 老化诊断 激光诱导击穿光谱 傅里叶红外光谱 憎水性 硬度 

分 类 号：TM216[一般工业技术—材料科学与工程]