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5 June 2024 Research on cable selection in low voltage distribution systems affected by harmonics
Ling Liu
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Proceedings Volume 13163, Fourth International Conference on Mechanical, Electronics, and Electrical and Automation Control (METMS 2024); 131633N (2024) https://doi.org/10.1117/12.3030273
Event: International Conference on Mechanical, Electronics, and Electrical and Automation Control (METMS 2024), 2024, Xi'an, China
Abstract
In low-voltage distribution circuits, when the load carried by the power supply system is a three-phase balanced load, the current in the circuit contains third harmonic, and the selection of cable cross-section needs to consider multiple factors. When the third harmonic content of the circuit reaches a certain value, when considering the cable cross-section, it is necessary to calculate the current carrying capacity, the setting value of the protective device connected to the cable, and the influence of different harmonic contents. Under different harmonic contents and equal cross-sections of neutral and PE lines, cables may be selected according to the interface of phase or neutral lines. In this article, the cable cross-sections are calculated and studied from the above three aspects, and quantitative analysis is combined with practical cases to provide reference for the selection of low-voltage cables in the power supply and distribution industry.
(2024) Published by SPIE. Downloading of the abstract is permitted for personal use only.
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Ling Liu "Research on cable selection in low voltage distribution systems affected by harmonics", Proc. SPIE 13163, Fourth International Conference on Mechanical, Electronics, and Electrical and Automation Control (METMS 2024), 131633N (5 June 2024); https://doi.org/10.1117/12.3030273
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KEYWORDS
Power supplies
Astatine
Phase distribution
Safety
Standards development
Superposition
Third harmonic generation
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