Abstract
Transformer bushing is important insulation equipment outside the transformer. If there are insulation defects for a long time, it may cause the risk of safety accidents such as fire and explosion. In view of the inadequacies of the existing insulation detection technology of oil-paper insulating bushing, the UHF and pressure variation characteristics of oil-paper insulating bushing during the development of partial discharge defects are studied in this paper. The UHF and pressure variation characteristics and their correlation characteristics of different severity partial discharge in the development process of oil-paper insulated bushing are obtained through the discharge insulation defect simulation platform. The results show that the pressure rise curve shows a trend of fluctuating around 0 at first and then rising, and the fluctuation duration is inversely proportional to the severity. The pressure increment within 120 min is proportional to the severity. After the voltage is applied for a long time, the model with weak severity will develop to discharge “self-extinguishing”, while the UHF amplitude of the model with strong severity will rise again, and the pressure will rise again and develop to breakdown when it is stable.
This is a preview of subscription content, log in via an institution to check access.
References
Septyani, H.I., Arifianto, I., Purnomoadi, A.P.: High voltage transformer bushing problems. In: 2011 International Conference on Electrical Engineering and Informatics, pp. 1–4 (2011)
Hashemnia, N., Abu-Siada, A., Islam, S.: Detection of power transformer bushing faults and oil degradation using frequency response analysis. IEEE Trans. Dielectr. Electr. Insul. 23(1), 222–229 (2016)
Chen, J., Phung, T., Blackburn, T.: Detection of high impedance faults using current transformers for sensing and identification based on features extracted using wavelet transform. IET Gener. Transm. Distrib. 10(12), 2990–2998 (2016)
Garcia-Colon, V.R., Linan-Garcia, R., Jacobo, M.A.: On-line condition assessment of high voltage current transformers. In: Conference Record of the 2004 IEEE International Symposium on Electrical Insulation, pp. 182–185 (2004)
Fofana, I., Hemmatjou, H., Meghnefi, F.: On the frequency domain dielectric response of oil-paper insulation at low temperatures. IEEE Trans. Dielectr. Electr. Insul. 17(3), 799–807 (2010)
Yu, N., An, B., Ding, J.: Study on partial discharge characteristics of typical defects of oil-paper capacitor bushing. In: 2022 IEEE 6th Information Technology and Mechatronics Engineering Conference (ITOEC), pp. 625–629 (2022)
Jiang, J., Chen, J., Li, J.: Partial discharge detection and diagnosis of transformer bushing based on UHF method. IEEE Sens. J. 21(15), 16798–16806 (2021)
Rao, U.M., Fofana, I., Rajesh, K.: Identification and application of machine learning algorithms for transformer dissolved gas analysis. IEEE Trans. Dielectr. Electr. Insul. 28(5), 1828–1835 (2021)
Gu, Z., Gu, C., Zhu, M., et al.: Influence of temperature on frequency domain spectroscopy detection of transformer bushings. Energy Rep. 8, 381–387 (2022)
Goh, H.H., Yin, J., Zhang, Y., et al.: Study on lifespan prediction of oil-paper bushing considering the influence of moisture-accelerated aging. IEEE Trans. Dielectr. Electr. Insul. 30(1), 458–465 (2022)
Ivanov, G., Spasova, A., Mateev, V., et al.: Applied complex diagnostics and monitoring of special power transformers. Energies 16(5), 2142 (2023)
Li, J., Li, Z., Chen, J., Bie, Y.: Oil pressure monitoring for sealing failure detection and diagnosis of power transformer bushing. Energies 14(23), 7908 (2021)
Chen, L., Wu, X., Tian, Y.: PD defect monitoring for oil-impregnated paper bushing by measuring the inner pressure. IEEE Access 7, 53411–53418 (2019)
Guozhi, Z., Zhang, X., **ngrong, H.: On-line monitoring of partial discharge of less-oil immersed electric equipment based on pressure and UHF. IEEE Access 7, 11178–11186 (2019)
Acknowledgments
This research was supported by the Research Project on Monitoring and Early Warning Technology for Full Fault Cycle and Key Areas of Leaders of Oil-Paper Insulated Capacitive Bushing (GXKJXM20210308).
Author information
Authors and Affiliations
Corresponding author
Editor information
Editors and Affiliations
Rights and permissions
Copyright information
© 2024 Bei**g Paike Culture Commu. Co., Ltd.
About this paper
Cite this paper
Su, Y., Zhang, L., Pan, S., Rao, X., Huang, W. (2024). Characteristics of UHF and Pressure Changes Under Insulation Defects in Oil-Paper Insulation Bushing. In: Yang, Q., Li, Z., Luo, A. (eds) The Proceedings of the 18th Annual Conference of China Electrotechnical Society. ACCES 2023. Lecture Notes in Electrical Engineering, vol 1179. Springer, Singapore. https://doi.org/10.1007/978-981-97-1428-5_2
Download citation
DOI: https://doi.org/10.1007/978-981-97-1428-5_2
Published:
Publisher Name: Springer, Singapore
Print ISBN: 978-981-97-1427-8
Online ISBN: 978-981-97-1428-5
eBook Packages: EngineeringEngineering (R0)