Measurement and Ion-pairing Analysis of Natural Contamination Constituents on Insulators with Different Material
Author(s): HUANG Qingdan, YANG Zhongyi, SONG Haoyong, JIANG Xingliang, WU Peiwei, ZHANG Zhijin, Electrical Power Test & Research Institute of Guangzhou Power Supply Bureau, State Key Laboratory of Power Transmission Equipment & System Security and New Technology, Chongqing University
Pages: 3917-3923
Year: 2016 Issue: 12
Journal: High Voltage Engineering
Keyword: insulator; natural contamination; ion-exchange chromatography; fuzzy clustering; ion-pairing; chemical composition;
Abstract: The constituents of contamination on insulators surface under field condition are affected by various factors such as terrain, climate, and insulator surface material. In order to investigate the pollution constituents on the surface of external insulation, we studied a method based on ion exchange chromatography to measure the ionic composition of natural contamination on ceramic, glass, and composite insulators in Chongqing area. Aiming at the weakness of ion-pairing, we put forward a rule of ion pairs based on fuzzy cluster analysis, providing an objective basis for measuring ion-pairing of pollution constituents. The results show that CaSO4 is the primary constituent on insulators in Chongqing. The characters of material can lead to difference between pollution constituents and contents on insulators with different surface material. equivalent salt deposit density（ESDD） cannot characterize the pollution level of external insulation in field condition. A set of characterization method basing on pollution constituents needs to be put forward to enhance the reliability of the contaminants measurement in power system external insulation.
Pages: 3917-3923
Year: 2016 Issue: 12
Journal: High Voltage Engineering
Keyword: insulator; natural contamination; ion-exchange chromatography; fuzzy clustering; ion-pairing; chemical composition;
Abstract: The constituents of contamination on insulators surface under field condition are affected by various factors such as terrain, climate, and insulator surface material. In order to investigate the pollution constituents on the surface of external insulation, we studied a method based on ion exchange chromatography to measure the ionic composition of natural contamination on ceramic, glass, and composite insulators in Chongqing area. Aiming at the weakness of ion-pairing, we put forward a rule of ion pairs based on fuzzy cluster analysis, providing an objective basis for measuring ion-pairing of pollution constituents. The results show that CaSO4 is the primary constituent on insulators in Chongqing. The characters of material can lead to difference between pollution constituents and contents on insulators with different surface material. equivalent salt deposit density（ESDD） cannot characterize the pollution level of external insulation in field condition. A set of characterization method basing on pollution constituents needs to be put forward to enhance the reliability of the contaminants measurement in power system external insulation.
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