Insulating oil is widely used in transformer and other large high-voltage electrical equipment.Its main functions are
insulation, cooling and arc extinction. When the transformer runs, it may emit heat or discharge, which generate gas,
micro water and trace metals in transformer oil. This will not only reduce the insulation capacity of insulating oil,and
will greatly reduce the ability of its extinction, causing the transformers or other oil-filled electrical equipment appearing
Internal latent malfunction, which would affect the operation of equipment.
In this Paper, we simulate the transformer discharge effect to discharge in transformer oil. Then we use spectral theory
and photo-spectroscopy technology to measure and analyse the oil sample, combining with IR absorption peaks of main
fault characteristic gases, and qualitatively analyse CO, CO2, CH4, C2H6, C2H4, C2H2, H2 in gas mixture. The results show that the Fourier transform infrared spectroscopy can be very effective for analysing gases in transformer oil, which
can quickly detect possible problems in the equipment.