Incipient fault detection in 33/11kV power transformers by using combined Dissolved Gas Analysis technique and acoustic partial discharge measurement and validated through untanking

• Main Authors: Samsudin M.R., Ramli A.Q., Berhanuddin A., Yang Y.Z.
• Other Authors: 35410298500
• Format: Conference paper
• Published: 2023
• Subjects: Arcing; Dissolved Gas Analysis; On Load Tap Changer (OLTC); Partial Discharge; Discharge (fluid mechanics); Dissolution; Electric fault location; Electric power systems; Fault detection; Gas chromatography; Partial discharges; Power transmission; Surface discharges; Thermal insulation; Voltage control; Choking effects; Dissolved gas analysis; Dissolved-gas-analysis techniques; Electrical faults; Electrical stress; Hotspots; Incipient fault detection; Incipient faults; On-load tap changers; Paper insulation; Partial discharge measurements; Sharp edges; Surface tracking; Thermal faults; Power transformers

Power transformer consists of components which are under consistent thermal and electrical stresses. The major component which degrades under these stresses is the paper insulation of the power transformer. The electrical fault can develop into thermal fault such as localized insulation burning or h...