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Research on identification method of abnormal grounding circulating current in single‐core AC submarine cable
- Source :
- IET Generation, Transmission & Distribution, Vol 18, Iss 11, Pp 2144-2154 (2024)
- Publication Year :
- 2024
- Publisher :
- Wiley, 2024.
-
Abstract
- Abstract The grounding circulation current of the sheath and armour of single‐core AC submarine cables is high during operation, which can easily cause insulation damage and faults. Traditional methods that only monitor the amplitude of grounding circulation current make it difficult to detect defects in the cables, so further research is needed on the mathematical mechanism and detection methods of grounding circulation current. A mathematical model for the capacitance and impedance coupling of a single‐core submarine cable was established, and the influence of factors such as active power, length of armour stripping section, armour resistivity, armour magnetic permeability and grounding resistance on the grounding circulation current was analysed. A method for identifying abnormal grounding circulation current of submarine cables based on the combination of amplitude and phase was proposed.
Details
- Language :
- English
- ISSN :
- 17518695 and 17518687
- Volume :
- 18
- Issue :
- 11
- Database :
- Directory of Open Access Journals
- Journal :
- IET Generation, Transmission & Distribution
- Publication Type :
- Academic Journal
- Accession number :
- edsdoj.1d0d90d464b41a0a4df9cf5e58d31
- Document Type :
- article
- Full Text :
- https://doi.org/10.1049/gtd2.13190