AUTHOR(S): 

Christos A. Christodoulou, Vasiliki Vita, Lambros Ekonomou

TITLE

Studies for the More Effective Protection of MV/LV Substations against Lightning Overvoltages

KEYWORDS

Lightning, Substations, Surge arresters, Transformers

ABSTRACT

The installation of surge arresters is the common practice for the protection of the distribution substations against lightning overvoltages that may cause serious damages to the equipment. However, the protection level that surge arresters offer depends on various factors, i.e., the installation position, the length of the connecting conductors and the grounding resistance. In the current work, the developed overvoltages at the entrance of a distribution substation, due to lightning stroke to the connected line are computed, considering different configurations. The obtained results can be useful for engineers and power utilities for the improvement of the lightning performance of already existed substations or for the more effective design of new ones.

Cite this paper

Christos A. Christodoulou, Vasiliki Vita, Lambros Ekonomou. (2017) Studies for the More Effective Protection of MV/LV Substations against Lightning Overvoltages. International Journal of Circuits and Electronics, 2, 6-10