Frequency and Time Domain Responses of Cross-Bonded Cables

Cross-bonded cable models are compared against their versions with normal bonding (no bonding) for propagation characteristics, frequency, and time-domain responses. Contrary to no-bonding cables, coaxial modes cannot propagate in cross-bonded cables. Instead, intercore modes propagate, being always...

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Bibliographic Details
Published in:IEEE transactions on power delivery 2018-04, Vol.33 (2), p.640-648
Main Authors: Lafaia, Isabel, Mahseredjian, Jean, Ametani, Akihiro, Correia de Barros, Maria Teresa, Kocar, Ilhan, Fillion, Yannick
Format: Article
Language:English
Subjects:
Bonding
Cable insulation
Cable shielding
Coaxial cables
Cross-bonded cable
electromagnetic transients
Frequency-domain analysis
Niobium
propagation analysis
Time-domain analysis
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Summary:Cross-bonded cable models are compared against their versions with normal bonding (no bonding) for propagation characteristics, frequency, and time-domain responses. Contrary to no-bonding cables, coaxial modes cannot propagate in cross-bonded cables. Instead, intercore modes propagate, being always accompanied by intersheath modes. The latter property cannot be observed if a cross-bonded cable is modeled with its homogeneous equivalent. It is shown that sheath cross-bonding induces intersheath modes circulating between grounding points and impacts on the cable response at resonant frequencies. Alternate models for cross-bonded cables, including both homogeneous and nonhomogeneous equivalents, are compared based on frequency- and time-domain responses, including a field test on a 225 kV 64 km cable with 17 major sections.
ISSN:0885-8977
1937-4208
DOI:10.1109/TPWRD.2017.2734891