固体氧化物燃料电池传感器检测变压器油中溶解气体定量特性

doi:10.19595/j.cnki.1000-6753.tces.160487

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Abstract On line chromatography used to detect the dissolved gas in oil is an important method for detection of the latent faults of the transformer,which is of great significance to status assessment of the transformer.Sensor technique used to detect gasis the key technology of on-line chromatography.At present,many on-line chromatographic monitoring sensors have been developed at home and abroad,but there are many shortcomings such as poor stability,low sensitivity and confined linear range.To solve the above problems,a method for detecting dissolved gases in transformer oil using solid oxide fuel cell sensor is presented.Meanwhile,the fabrication of the sensors,the test method and process are introduced,and the gas sensing mechanism is discussed.Based on that,the quantitative mathematical model of the sensor is constructed based on Nernst equation.The experimental results show that accurate and high precision measurement of the H₂,C₂H₄,CH₄,C₂H₆ and C₂H₂ can be achieved by using the solid oxide fuel cell(SOFC)detector technology and the proposed model.Especially,the sensitivity of the sensors to C₂H₂ is able to reach 1×10^-7,and can be used to solve the problems of poor stability,accuracy and low sensitivity on conventional sensors,which demonstrates that the proposed method has a very important promotion value.

Key words： Power transformer chromatography dissolved gas analysis solid oxide fuel cell detector

Received: 12 April 2016 Published: 10 November 2017

PACS:

TM411

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	Articles by authors
	Fan Jingmin
	Wang Feng
	Jiang Qinqi
	Pei Wenjie
	Zhou Wu

Cite this article:

Fan Jingmin,Wang Feng,Jiang Qinqi等. Quantitative Characteristics of Solid Oxide Fuel Cell Sensor Used to Detect Dissolved Gases in Transformer Oil[J]. Transactions of China Electrotechnical Society, 2017, 32(21): 186-193.

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https://dgjsxb.ces-transaction.com/EN/10.19595/j.cnki.1000-6753.tces.160487 OR https://dgjsxb.ces-transaction.com/EN/Y2017/V32/I21/186

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