부산대학교 도서관

Early detection of corona discharge plays a critical role in avoiding catastrophic failure of transformer insulation. In this study, we explore the use of two-dimensional material coated fluorescent fiber for early detection of corona discharge. Specifically, Molybdenum disulphide (MoS 2 ) material is dip coated over a commercial grade fluorescent since the bandgap of the coated MoS 2 material corresponds to the visible and ultraviolet (UV) spectral regions. Corona inception voltage detection adopting MoS 2 coated fluorescent fiber exhibits detection efficiency with the percentage difference of 32% in comparison to the UHF technique. Also, fiber coating enhances the energy content of the discharge signal by the difference of 150% with respect to uncoated fluorescent fiber. The phase resolved partial discharge studies reveal that the discharge is observed at the peak of the applied AC voltage.