A Novel Aging Indicator of Transformer Paper Insulation Based on Dispersion Staining Colors of Cellulose Fibers in Oil

被引：18

作者：

Li, Jian ^{[1
]}

Zhang, Jing ^{[1
]}

Wang, Feipeng ^{[1
]}

Huang, Zhengyong ^{[1
]}

Zhou, Quan ^{[1
]}

机构：

[1] Chongqing Univ, Sch Elect Engn, State Key Lab Power Transmiss Equipment & Syst Se, Chongqing, Peoples R China

来源：

IEEE ELECTRICAL INSULATION MAGAZINE | 2018年 / 34卷 / 04期

基金：

中国国家自然科学基金;

关键词：

aging diagnosis; dispersion staining color; refractive index; Mahalanobis distance; cellulose fiber; insulation paper; transformer; CHAIN-END GROUPS; FILLED POWER TRANSFORMERS; PART; TENSILE-STRENGTH; DISSOLVED-GAS; DEGRADATION; KINETICS; METHANOL; MOISTURE; DEPOLYMERIZATION;

D O I：

10.1109/MEI.2018.8430039

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

Diagnosis of aging of the paper insulation in transformers has long been of interest to transformer manufacturers and utilities [1]-[3]. Such insulation is irreversibly aged during long-term operation, losing its mechanical strength and becoming brittle. The loss of mechanical strength is an important factor limiting the life expectancy of the transformer [4], [5]. Consequently diagnosis of aging and evaluation of residual life of paper insulation is important for the safe operation, condition-based maintenance, and replacement of power transformers [6]-[9]. © 2006 IEEE.

引用

页码：8 / 16

页数：9

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