Partial discharge investigation of a power transformer using wireless wideband radio-frequency measurements

被引：58

作者：

Moore, PJ ^{[1
]}

Portugues, IE ^{[1
]}

Glover, IA ^{[1
]}

机构：

[1] Univ Bath, Dept Elect & Elect Engn, Bath BA2 7AY, Avon, England

来源：

IEEE TRANSACTIONS ON POWER DELIVERY | 2006年 / 21卷 / 01期

基金：

英国工程与自然科学研究理事会;

关键词：

condition monitoring; location; partial discharges; power transformers; radiometric measurements;

D O I：

10.1109/TPWRD.2005.848438

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：

The remote detection of a transformer internal partial discharge (PD) has been demonstrated using mobile wideband radio-frequency receiving equipment. The PD is externally detectable due to coupling within the transformer tank, causing impulsive signals to be radiated from external connections. A wideband direction-finding technique using a four-antenna array has shown the source of the radiation to be the tertiary winding connections; the radiated impulse has characteristics typical of this method of emission. No other external site of radiation from the transformer was detected. Due to the lack of coupling to the primary and secondary windings, it is believed that the PD is present between the tertiary windings and the core.

引用

页码：528 / 530

页数：3

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