Szczegóły publikacji
Opis bibliograficzny
Effects of mechanical transversal bending of power cable on partial discharges and dielectric-loss evolution / Marek FLORKOWSKI, Maciej KUNIEWSKI, Paweł MIKRUT // IEEE Transactions on Dielectrics and Electrical Insulation ; ISSN 1070-9878. — 2024 — vol. 31 iss. 6, s. 3277–3284. — Bibliogr. s. 3283–3284, Abstr. — Publikacja dostępna online od: 2024-03-28
Autorzy (3)
Słowa kluczowe
Dane bibliometryczne
| ID BaDAP | 157470 |
|---|---|
| Data dodania do BaDAP | 2025-01-14 |
| Tekst źródłowy | URL |
| DOI | 10.1109/TDEI.2024.3382642 |
| Rok publikacji | 2024 |
| Typ publikacji | artykuł w czasopiśmie |
| Otwarty dostęp |  |
| Czasopismo/seria | IEEE Transactions on Dielectrics and Electrical Insulation |
Abstract
In this article, the investigations of transversal power cable bending cycles on dielectric performance are presented. The effects were assessed by two electrical methods: phase-resolved partial discharge (PD) measurements and dielectric-loss measurements. The original element was a real-time synchronous correlation of these indicators over consecutive bending cycles up to the electrical breakdown of the cable’s insulation. In addition, the impact of the mechanical stress was observed on the bending moment. This article depicts an original measurement and assessment methodology for trend monitoring and a quantitative approach for evaluating dynamic cable deterioration. The evolution of the dissipation factor while applying consecutive transversal bending cycles revealed a strong correlation with the deterioration progress. Just prior to breakdown stage (at 500 bending cycles), the dielectric loss factor rise was observed from 0.009 to 0.014. A similar strong correlation was obtained for the dropping trends of the PD-inception voltage and PD-pattern transformations. The inception voltage decreased from 10 kV to even below 4 kV just before breakdown. The study may contribute to the testing and diagnostics of dynamic power cables that are subjected to many mechanical movements under normal operation conditions; e.g., in industry, mining, and especially in subsea applications. This especially refers to future submarine dynamic cables, which will require extended mechanical and electrical endurance.
