Abstract
This paper presents results of electrical tests carried out on nuclear power plant low voltage power cable samples based XLPE/CSPE polymer insulation. These cable samples have been subjected to accelerated thermal and mechanical stresses for 240, 480, 720 and 960 h. The effect of these aging stresses has been investigated through studying the real and imaginary parts of complex permittivity over frequency range from 20 Hz to 500 kHz. These two parameters are commonly used as aging markers to assess the insulation state of such kind of cables. The results show a non-uniform trend for the real and imaginary parts of permittivity. Also, it can be noticed that after the last two cycles, the imaginary part minimum values have been shifted to lower frequencies, 200 Hz.
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Acknowledgments
This research work has been implemented under Project No. 123672 with the support provided from the National Research, Development and Innovation Fund of Hungary, financed under the KNN_16 funding scheme.
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Afia, R.S.A., Mustafa, E., Bal, S., Tamus, Z.Á. (2020). Investigating the Complex Permittivity of Low Voltage Power Cables Under Different Stresses. In: Camarinha-Matos, L., Farhadi, N., Lopes, F., Pereira, H. (eds) Technological Innovation for Life Improvement. DoCEIS 2020. IFIP Advances in Information and Communication Technology, vol 577. Springer, Cham. https://doi.org/10.1007/978-3-030-45124-0_30
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DOI: https://doi.org/10.1007/978-3-030-45124-0_30
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