Frequency Response Measurement of a Power Transformer

被引：0

作者：

Ariastina, W. G. ^{[1
]}

Kumara, I. N. S. ^{[1
]}

Partha, C. G. Indra ^{[1
]}

Arjana, I. G. Dyana ^{[1
]}

机构：

[1] Udayana Univ, Dept Elect & Comp Engn, Bali 80362, Indonesia

来源：

2015 INTERNATIONAL CONFERENCE QUALITY IN RESEARCH (QIR) | 2015年

关键词：

core and winding fault; power transformer; condition monitoring; SFRA;

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：

This paper presents a field experience in condition monitoring of a power transformer using SFRA technique. A design based comparison approach of the SFRA test results is discussed in the paper. In order to verify the latest condition of the transformer, the SFRA test was complemented with DGA and PD tests. The SFRA test results indicated that there is an abnormality within the transformer windings. The PD test results confirmed this interpretation, where very large ultrasonic impulses were detected. A series of DGA tests have showed that there is an early stage degradation of the insulating paper, which may be associated with fault within the transformer windings. The field experience showed that the monitoring approach has been very useful in indicating the possible occurrence of failure within the transformer structure.

引用

页码：102 / 105

页数：4

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