Abstract
Metal particle contamination is one of the contributors to partial discharge (PD) in transformer oil. Factors such as sizes, shapes, type of materials, and numbers of the metal particles can affect the PD. Therefore, PD under influence of spherical metal particle number in conventional mineral oil and Palm Fatty Acid Ester (PFAE) has been measured in order to understand the PD activity in transformer oil. PD under influence of single spherical metal particle has been compared with three metal particles number for both transformer oils under quasi-uniform field at three consecutive gaps of 5 mm, 7 mm and 9 mm at electric field strength of 2 kV/mm. Partial discharge inception voltage (PDIV) of single metal particle has very similar value with three metal particles number either in mineral oil or PFAE for all gap distances. In addition, phase-resolved partial discharge (PRPD) of mineral oil and PFAE due to single and three metal particles number revealed to have a distinguishing characteristic.
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Acknowledgment
The author is deeply indebted to Malaysia Ministry of Higher Education and Universiti Sains Malaysia for financially support this work under MyPhD scholarship and Research University Grant (1001/PELECT/814232).
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Azmi, K., Ishak, D., Muhamad, N.A., Zuhairi, A., Khayam, U., Jamil, M.K.M. (2022). Partial Discharge Activity Under Influence of Metal Particle Number in Mineral Oil and PFAE. In: Mahyuddin, N.M., Mat Noor, N.R., Mat Sakim, H.A. (eds) Proceedings of the 11th International Conference on Robotics, Vision, Signal Processing and Power Applications. Lecture Notes in Electrical Engineering, vol 829. Springer, Singapore. https://doi.org/10.1007/978-981-16-8129-5_129
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DOI: https://doi.org/10.1007/978-981-16-8129-5_129
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