Analysis of low‐frequency polarisation behaviour for oil‐paper insulation using logarithmic‐derivative spectroscopy

作     者：Jiefeng Liu Xianhao Fan Yiyi Zhang Benhui Lai Jian Jiao 

作者机构：School of Electrical EngineeringGuangxi UniversityNanningGuangxiChina Electric Power Research InstituteGuangxi Power Grid CorporationNanningGuangxiChina 

出 版 物：《High Voltage》 (高电压（英文）)

年 卷 期：2021年第6卷第3期

页      面：460-469页

核心收录：

学科分类：080801[工学-电机与电器] 0808[工学-电气工程] 08[工学] 0805[工学-材料科学与工程（可授工学、理学学位）] 080502[工学-材料学] 

基　　金：National Natural Science Foundation of China,Grant/Award Numbers:52007036,51867003 Natural Science Foundation of Guangxi,Grant/Award Numbers:2018JJB160064,2018JJA160176 Guangxi Bagui Young Scholars Special Funding Boshike Award Scheme for Young Innovative Talents Guangxi Science and Technology Base and Talent Special Project,Grant/Award Number:2019AC 20096 Basic Ability Improvement Project for Young and Middle‐aged Teachers in Universities of Guangxi,Grant/Award Numbers:20190067,20190046 

主　　题：effect insulation behaviour 

摘      要：The low‐frequency polarisation information of oil‐paper insulation could be easily obscured by the conductance effect,and the contained polarisation information thus can not be readily extracted from the frequency domain spectroscopy(FDS).Given this issue,an alternative idea is reported to extract the low‐frequency polarisation infor-mation by using logarithmic‐derivative spectroscopy(LDS).The present findings proved that the parameters extracted by using the LDS can be applied for studying the low‐frequency polarisation behaviour under the moisture *** that respect,the novelty of this work is in the exploration of the LDS as a potential tool to extract feature parameters for analyzing the low‐frequency polarisation information of trans-former oil‐paper insulation.