Degree of polymerisation estimation for insulation paper immersed in silicone oil using frequency domain dielectric spectroscopy
作者机构：School of Electrical EngineeringSouthwest Jiaotong UniversityChengduChina School of AutomationGuangdong University of TechnologyGuangzhouChina School of Physics and Optoelectronic EngineeringGuangdong University of TechnologyGuangzhouChina
出 版 物：《High Voltage》 (高电压（英文）)
年 卷 期：2023年第8卷第5期
页 面：1041-1054页
核心收录：
学科分类：0808[工学-电气工程] 080803[工学-高电压与绝缘技术] 08[工学]
基 金：Sichuan Natural Science Foundation Project,Grant/Award Number:2023NSFSC0828 Guangdong Basic and Applied Basic Research Foundation,Grant/Award Number:2020B1515130001
主 题：immersed insulation spectroscopy
摘 要：Frequency domain dielectric spectroscopy(FDS)is an effective method reflecting the changes of ageing status of silicone oil‐immersed insulation *** better evaluating the ageing status of silicone oil‐immersed insulation paper,an evaluation method was studied by analysing the ageing kinetic model and results of ***,the method to separate the different polarization losses and conductivity loss from the results of FDS was ***,based on the idea of ageing correction translation coefficient and timevarying pre exponential factor,the zero order ageing dynamic model was modified,which combines the ageing kinetic model with the results of ***,the evaluation method for the degree of polymerisation(DP)of silicone oil‐immersed paper was proposed,and experiments were conducted to obtain the parameters in the modified model and then to verify the proposed *** results show that the proposed method can be used to evaluate the DP effectively.
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