Influence of the Cable Accessories Installing Method on the Partial Discharge Activity in Medium Voltage Cables

Jacek Rybarz, Sebastian Borucki, Michał Kunicki, Aneta Kucińska-Landwójtowicz and Dawid Wajnert
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Jacek Rybarz: Department of Electrical Power Engineering and Renewable Energy, Opole University of Technology, 45-758 Opole, Poland
Sebastian Borucki: Department of Electrical Power Engineering and Renewable Energy, Opole University of Technology, 45-758 Opole, Poland
Michał Kunicki: Department of Electrical Power Engineering and Renewable Energy, Opole University of Technology, 45-758 Opole, Poland
Aneta Kucińska-Landwójtowicz: Department of Management and Production Engineering, Opole University of Technology, 45-758 Opole, Poland
Dawid Wajnert: Department of Electrical Engineering and Mechatronics, Opole University of Technology, 45-758 Opole, Poland

Energies, 2022, vol. 15, issue 12, 1-18

Abstract: This article proposes a method to modify the construction of a medium voltage (MV) heat shrinkable cable termination in cases of atypical damage to the shields of cross-linked polyethylene (XLPE) insulated cables. The proposed solutions include a modified method of assembling electric field control coating. An attempt was made to check the effect of such damage to the shields of MV cables with XLPE insulation on the level of occurrence of partial discharges within the cable termination. The investigations included testing the XRUHAKXS 1 × 240/25 cable type using the electric method (ME) and high frequency (HF) method with sinusoidal AC test voltage. As a result of the measurements, the values of total charges in the period and phase-resolved partial discharge (PRPD) patterns were obtained. The presented experimental results show the influence of the damage of the semiconducting coating surface on the occurrence of a defect in the cable termination without a modified method of control mantissa pinning. We suggest new methods of assembling MV cable accessories in the case of the presented coating damage in MV cable insulation.

Keywords: MV power cable; cable socket; cable head; partial discharge; electric field distribution control (search for similar items in EconPapers)
JEL-codes: Q Q0 Q4 Q40 Q41 Q42 Q43 Q47 Q48 Q49 (search for similar items in EconPapers)
Date: 2022
References: View complete reference list from CitEc
Citations: View citations in EconPapers (1)

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