Hits:

Indexed by:期刊论文

Date of Publication:2015-06-01

Journal:17th International Conference on Photothermal and Photoacoustic Phenomena

Included Journals:SCIE、EI、CPCI-S、Scopus

Volume:36

Issue:5-6,SI

Page Number:940-946

ISSN No.:0195-928X

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

Abstract: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.