Research on the Influence of Temperature on the Frequency Domain Spectroscopy Characteristics of AC Oil-Paper Insulated Bushings

This paper introduced the test of frequency domain spectroscopy (FDS) of AC oil-paper insulated bushings, and explained the principle of FDS technology and temperature dependence mechanism. 72.5kV, 110kV, and 220kV OIP bushings were chosen as test samples to carry out temperature correlation research, and explained the influence mechanism of temperature on the FDS characteristics of the bushings, and proposed temperature correction method based on Arrhenius equation. The field application verified the effectiveness of temperature correction method and the insulation evaluation of OIP bushings.