Methane and Acetylene Detection in Transformer Oil Based on Raman Spectroscopy

In order to detect the characteristic gas generated by oil-paper insulation aging in the power transformer. Protecting the safety and stability of the power system. Raman spectroscopy-based detection technology was introduced to achieve sensitive and accurate measurement. In this paper, theoretical and experimental Raman spectra of methane and acetylene are obtained based on quantum chemistry methods and cavity enhanced Raman spectroscopy. The Raman spectra of methane and acetylene were compared and analyzed, the attribution of the Raman peak was determined, and the vibration mode of the molecule was analyzed. It is found that the detection method based on Raman spectroscopy can effectively identify the characteristic peaks of methane and acetylene, laying a solid foundation for its quantitative detection.