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论文类型：期刊论文

发表时间：2015-06-01

发表刊物：17th International Conference on Photothermal and Photoacoustic Phenomena

收录刊物：SCIE、EI、CPCI-S、Scopus

卷号：36

期号：5-6,SI

页面范围：940-946

ISSN号：0195-928X

关键字：Dissolved gas-in-oil analysis; High-voltage discharge; Multi-gas measurement; Near-infrared absorption spectroscopy; Photoacoustic spectroscopy

摘要：This paper investigates an application of near-infrared photoacoustic spectroscopy (PAS) to analyze the dissolved gas-in-oil of a transformer. A near-infrared tunable fiber laser-based PAS system has been developed. Using this system, the gas detection limits (signal-to-noise ratio = 1) of 4 ppb at 1531.59 nm for , 39 ppm at 1565.98 nm for CO, and 34 ppm at 1572.34 are reached. In addition, the fault gas () is produced by a transformer spatial discharge simulation system, and the productivity of the gas is measured quantitatively. The experiment demonstrates the near-infrared PAS system is able to be applied to the dissolved gas analysis of a transformer.