Event under the auspices of the Ministry of Economy of Slovak Republic

Effect of average environmental conditions in Slovakia at the current conductor capacity of overhead transmission line

Michal Špes
Department of Electrical Power Engineering, Faculty of Elect

Ľubomír Beňa
Department of Electrical Power Engineering, Faculty of Electrical Engineering and Informatics, Technical University of Košice

Zdeněk Müller
Department of Electrical Power Engineering, Faculty of Electrical Engineering, Czech Technical University in Prague

Martin Vojtek
Department of Electrical Power Engineering, Faculty of Electrical Engineering and Informatics, Technical University of Košice

Michal Kosterec
Department of Electrical Power Engineering, Faculty of Electrical Engineering and Informatics, Technical University of Košice

Michal Márton
Department of Electronics and Multimedia Telecommunications, Faculty of Electrical Engineering and Informatics, Technical University of Košice


     Last modified: 2017-06-15

Abstract
Current capacity of conductors is defined as the maximum amount of current that can flow without damaging the conductor. It depends primarily on the electrical and mechanical properties of the conductor, their ability to spread the heat generated and the ambient conditions. The proposal of powerlines as each electricity device are subject to the valid standards.
Standard EN 50341 defines the environmental conditions for calculating the maximum current capacity. In general, the environmental conditions are not constant over time. Depend on the climatic conditions of the country, area, that are different climatic nature.
This paper deals with the calculation of the maximum current capacity of conductor of overhead transmission line based on ambient climatic conditions according to the equations defined in the IEEE Std 738-1993. The article describes average weather conditions in Slovakia and its impact on the determination of the maximum current capacity. Article compares the maximum current capacity given by ambient conditions referred to a standard and current capacity determined by average weather conditions.

 

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