Dissolved hydrogen measurement with palladium-silver FBG sensor in transformer oil

被引：0

作者：

Song, Hong-tu ^{[1
]}

Ma, Guo-ming ^{[1
]}

Jiang, Jun ^{[1
]}

Li, Cheng-rong ^{[1
]}

Luo, Ying-ting ^{[2
]}

Wang, Hong-bin ^{[2
]}

机构：

[1] North China Elect Power Univ, State Key Lab Alternate Elect Power Syst Renewabl, Beijing, Peoples R China

[2] Guangdong Power Grid Co Ltd, Elect Power Res Inst, Guangzhou, Guangdong, Peoples R China

来源：

2015 IEEE ELECTRICAL INSULATION CONFERENCE (EIC) | 2015年

关键词：

fiber Bragg grating; palladium-silver; dissolved hydrogen concentration; power transformer; high temperature; FIBER;

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：

A novel sensor used in detection of hydrogen concentration dissolved in transformer oil was proposed based on fiber Bragg grating (FBG). Palladium was introduced as hydrogen sensitive material and silver was alloyed to improve permeability in hydrogen sensitive layer. Meanwhile membrane of titanium was fabricated for enhancing the adhesion between fiber and hydrogen sensitive layer. The thin film on FBG was coated with magnetron sputtering. A novel sensor that was wavelength-sensitive to hydrogen dissolved in oil was fabricated and the experimental platform was set up in this paper. The sensitivity of the sensor was tested in transformer oil at 80 degrees C which was typically high operating temperature or local overheating temperature of power transformers. The experimental result demonstrated that the sensor performed well at low hydrogen concentration of 323 mu L/L and the sensitivity of sensor was as high as 24.4 mu L/L at every 1pm wavelength shift.

引用

页码：73 / 76

页数：4

共 10 条

[1] Effective diagnostics for oil-filled equipment [J].