The paper presents a method for the study of large interconnected earthing systems in High Voltage networks. The mathematical model proposed for calculating the distribution of the Single-line-to-Earth fault current is useful for a methodical and accurate analysis of complex systems having meshed configuration and more sources, and has practical application for the Transmission System Operator. Two case studies are provided. The first one considers a fault occurring inside and outside a station in a real 220 kV transmission network. In the second example, the proposed methodology is compared with the classical “Double-sided elimination” method.
Riva Sanseverino, E., Zizzo, G., Di silvestre, M.L., La Cascia, D. (2015). A method for the evaluation of fault current distribution in complex high voltage networks. ELECTRIC POWER SYSTEMS RESEARCH, 126(126), 100-110 [10.1016/j.epsr.2015.05.004].
A method for the evaluation of fault current distribution in complex high voltage networks
RIVA SANSEVERINO, Eleonora;ZIZZO, Gaetano;DI SILVESTRE, Maria Luisa;LA CASCIA, Diego
2015-01-01
Abstract
The paper presents a method for the study of large interconnected earthing systems in High Voltage networks. The mathematical model proposed for calculating the distribution of the Single-line-to-Earth fault current is useful for a methodical and accurate analysis of complex systems having meshed configuration and more sources, and has practical application for the Transmission System Operator. Two case studies are provided. The first one considers a fault occurring inside and outside a station in a real 220 kV transmission network. In the second example, the proposed methodology is compared with the classical “Double-sided elimination” method.
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