The paper presents some numerical studies aiming at investigating the effect of different grounding system structures on the lightning performance of transmission lines equipped with surge arresters. The model takes into account the frequency dependence of the grounding system. The transmission line is treated in frequency domain by use of the BLT (Baum-Liu- Tesche) equations while the grounding system, is simulated using general electromagnetic model solved by means of the Method of Moment (MoM) in frequency domain. The lightning-originated overvoltages in presence of the surge arrester are then calculated in frequency domain using the Arithmetic Operator Method (AOM). A sensitivity analysis has been done studying the effect of different parameters including soil electromagnetic properties, grounding system structure and injection point on the lightning- originated overvoltages.

The Impact of the Grounding System on the Lightning Performance of Transmission Lines: a Sensitivity Analysis

M. Paolone
2010

Abstract

The paper presents some numerical studies aiming at investigating the effect of different grounding system structures on the lightning performance of transmission lines equipped with surge arresters. The model takes into account the frequency dependence of the grounding system. The transmission line is treated in frequency domain by use of the BLT (Baum-Liu- Tesche) equations while the grounding system, is simulated using general electromagnetic model solved by means of the Method of Moment (MoM) in frequency domain. The lightning-originated overvoltages in presence of the surge arrester are then calculated in frequency domain using the Arithmetic Operator Method (AOM). A sensitivity analysis has been done studying the effect of different parameters including soil electromagnetic properties, grounding system structure and injection point on the lightning- originated overvoltages.
Proceedings of the 30th International Conference on Lightning Protection - ICLP 2010 (Cagliari, Italy - September 13th -17th, 2010
1139-1
1139-6
K. Sheshyekani; A. A. Ghadimi; H. R. Karami; S. H. H. Sadeghi; R. Moini; F. Rachidi; M. Paolone
File in questo prodotto:
Eventuali allegati, non sono esposti

I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.

Utilizza questo identificativo per citare o creare un link a questo documento: http://hdl.handle.net/11585/98104
 Attenzione

Attenzione! I dati visualizzati non sono stati sottoposti a validazione da parte dell'ateneo

Citazioni
  • ???jsp.display-item.citation.pmc??? ND
  • Scopus ND
  • ???jsp.display-item.citation.isi??? 0
social impact