Proposal of Objective Criterion in Diagnosis of Abnormalities of Power-Transformer Winding by Frequency Response Analysis

被引：0
作者：
Miyazaki, S. [1 ]
Mizutani, Y. [1 ]
Taguchi, A. [2 ]
Murakami, J. [3 ]
Tsuji, N. [4 ]
Takashima, M. [5 ]
Kato, O. [6 ]
机构：
[1] Cent Res Inst Elect Power Ind, Yokosuka, Kanagawa, Japan
[2] Kyushu Elect Power Co Inc, Fukuoka, Japan
[3] Tohoku Elect Power Co Inc, Sendai, Miyagi, Japan
[4] Chugoku Elect Power Co Inc, Hiroshima, Japan
[5] Shikoku Elect Power Co Inc, Takamatsu, Kagawa, Japan
[6] Elect Power Dev Co Inc, Chigasaki, Kanagawa, Japan
来源：
2016 INTERNATIONAL CONFERENCE ON CONDITION MONITORING AND DIAGNOSIS (CMD) | 2016年
关键词：
Power Transformer; Winding; Frequency Response Analysis(FRA); Abnormality Diagnosis;
D O I：
暂无
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：
Frequency Response Analysis (FRA) is a powerful technique to detect internal abnormalities within power transformers. However, diagnosis criteria of power transformers by FRA have not been fully established yet. In this paper, an indicator of identification degree of the two transfer functions is examined using data of real transformers and problems in practical application are discussed. Based on this discussion, an improved indicator of degree of identification between two transfer functions is proposed. The proposed indicator is applied to transfer functions of real transformers with or without some abnormalities. Based on this discussion, an objective criterion for diagnosis of abnormalities of transformer windings by FRA is proposed.
引用
收藏
页码：74 / 77
页数：4
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