RESEARCH PAPER
Energy losses’ reduction in metallic screens of MV cable power lines and busbar bridges composed of single-core cables
1
Institute of Electric Power Engineering Poznan University of Technology ul. Piotrowo 3a, 60-965 Poznań, Poland
Publication date: 2020-03-31
Eksploatacja i Niezawodność – Maintenance and Reliability 2020;22(1):15-25
KEYWORDS
ABSTRACT
The growing share of medium voltage cable lines in distribution networks challenges distribution network operators
in terms of proper mode of operation of these lines. It is related to the reduction of energy losses in cable conductors
and metallic cable screens. The article focuses on energy losses in metallic cable screens of cable lines and substation
busbar bridges composed of single-core cables with metallic screens and possible ways of their reduction. Simulation
and measurement analysis of the level of energy losses in the metallic screens of cables is presented together with the
economic analysis of various variants of losses reduction through the change of the way these screens are operated in
relation to the traditional bilateral earthing at both ends of cable. Technical problems and threats connected with the
use of considered modifications of metallic screens operation during earth fault disturbances in distribution networks
are also presented
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Analysis of Overvoltages Appearing in One-Sidedly Ungrounded MV Power Cable Screen
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Impact of Cable Configuration on the Voltage Induced in Cable Screen during Work with One-Sidedly Ungrounded Cable Screen
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Yu Ba, Junyi Ma, Haiwei Ma, Dongjie Sun, Shanshan Feng, Wenhe Xiao, Yu Zhang, Hanqing Wu
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Determination of the Optimal Level of Reactive Power Compensation That Minimizes the Costs of Losses in Distribution Networks
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| eISSN: | 2956-3860 |
| ISSN: | 1507-2711 |
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