Abstract
The thermal behavior of medium voltage dc cables can find useful applications for efficient and capacity enhanced operation in cities as well as compact power transmission on all electric ships. Concepts such as dynamic current and voltage rating, difference in thermal proximity in ac and dc operation, pulsed load application and thermal degradation with enhanced dc voltage; all are interlaced with the crucial temperature profile of insulated conductors. This paper develops a theoretical thermal model to highlight the possibility of dynamic current rating with pulsed loads. Further, a novel idea of imposing a thermal profile on cables for dc partial discharge testing is discussed. For this purpose a heat transfer model for a segmented cable is developed and experimentally validated.
Original language | English |
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Title of host publication | 2017 IEEE Power and Energy Society General Meeting, PESGM 2017 |
Place of Publication | Piscataway, NJ |
Publisher | IEEE |
Pages | 1-5 |
Number of pages | 5 |
Volume | 2018-January |
ISBN (Electronic) | 978-1-5386-2212-4 |
DOIs | |
Publication status | Published - 2018 |
Event | IEEE Power and Energy Society General Meeting, PESGM 2016: Paving the Way for Grid Modernization - Boston, United States Duration: 17 Jul 2016 → 21 Jul 2016 |
Conference
Conference | IEEE Power and Energy Society General Meeting, PESGM 2016 |
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Abbreviated title | IEEE PESGM P |
Country/Territory | United States |
City | Boston |
Period | 17/07/16 → 21/07/16 |
Keywords
- Power cables
- Conductors
- Cable shielding
- Thermal conductivity
- Power cable insulation