Quantitative Relationship of Contaminated Soluble Salts of Insulators Using Laser-Induced Breakdown Spectroscopy
Wang Naixiao1, 2, Wang Xilin1, Jia Zhidong1, Wang Liming1, Huang Ronghui3
1. Engineering Laboratory of Power Equipment Reliability in Complicated Coastal Environment Graduate School at Shenzhen Tinghua University Shenzhen 518055 China; 2. State Key Laboratory of Electrical Insulation and Power Equipment Xi’an Jiaotong University Xi’an 710049 China;; 3. Shenzhen Power Supply Co. Ltd Shenzhen 518038 China
Abstract：The contamination of the insulators’ surface can affect the operation of the high -voltage linerunning state. The detection of the existing insulator contamination relied on sampling in the power cut, taking back to lab and testing with element analysis equipment. Laser-induced breakdown spectroscopy(LIBS) with inductively coupled plasma spectroscopy(ICP) provided a new method for determining the contamination level of transmission line insulators and the quantitative relationship between the content of several salt ions and the laser spectrum in artificial contamination was studied. Results showed that the LIBS could directly monitor the content of the elementsin contamination. Mg, Ca and other elements concentration and spectral intensity of certainlines showed a strong linear relationship, while Na and Al hadno significant linear relationship between the soluble salt elements corresponding to the lines. The alkali metal elements such as Na was greatly affected by the matrix effect. The principal component analysis(PCA) was used to analyze the intensity and concentration of multiple elements. The result was good for classifying different contamination components.
王乃啸, 王希林, 贾志东, 王黎明, 黄荣辉. 基于激光诱导击穿光谱的绝缘子污秽可溶盐定量关系[J]. 电工技术学报, 2019, 34(3): 620-627.
Wang Naixiao, Wang Xilin, Jia Zhidong, Wang Liming, Huang Ronghui. Quantitative Relationship of Contaminated Soluble Salts of Insulators Using Laser-Induced Breakdown Spectroscopy. Transactions of China Electrotechnical Society, 2019, 34(3): 620-627.
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2019, Vol. 34 
