| Autor: |
Alexandre Piantini, Jorge Mieczyslaw Janiszewski, E. L. Batista, T. O. de Carvalho, Paulo F. Obase |
| Rok vydání: |
2011 |
| Předmět: |
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| Zdroj: |
2011 International Symposium on Lightning Protection. |
| DOI: |
10.1109/sipda.2011.6088432 |
| Popis: |
This paper investigates the effects of direct strokes to medium-voltage (MV) lines by analyzing the surges at the primary and secondary sides of a single-phase distribution transformer installed in a typical rural network of the state of Rio Grande do Sul, located in the South of Brazil. The distribution transformers of AES Sul, the electric utility, present a high failure rate and a significant number of the failures are attributed to lightning. The transformers are in general protected by surge arresters at the MV terminals and in a few cases also at the low-voltage (LV) side. Different distances between the MV arrester and the transformer as well as various values of ground resistance are considered in the analysis. |
| Databáze: |
OpenAIRE |
| Externí odkaz: |
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