The aim of the paper is to assess the risk of insulation failure of distribution transformers connected to overhead distribution due to indirect lightning induced voltages. The annual frequencies of occurrence of dangerous voltages are evaluated through a Monte Carlo procedure and by using the LIOV-EMTP code for the calculation of the Lightning Electromagnetic Pulse (LEMP) and its effects on the multi-conductor line. The probability of distribution transformers insulation to withstand the stresses caused by lightning overvoltages is inferred from the results of experimental test
Gustavo Paiva Lopes, Manuel Luis Barreira Martinez, Alberto Borghetti, Fabio Napolitano, Carlo Alberto Nucci, Juliana Izabel Lara Uchoa, et al. (2013). A procedure to evaluate the risk of failure of distribution transformers insulation due to lightning induced voltages. London : The IET [10.1049/cp.2013.1258].
A procedure to evaluate the risk of failure of distribution transformers insulation due to lightning induced voltages
BORGHETTI, ALBERTO;NAPOLITANO, FABIO;NUCCI, CARLO ALBERTO;
2013
Abstract
The aim of the paper is to assess the risk of insulation failure of distribution transformers connected to overhead distribution due to indirect lightning induced voltages. The annual frequencies of occurrence of dangerous voltages are evaluated through a Monte Carlo procedure and by using the LIOV-EMTP code for the calculation of the Lightning Electromagnetic Pulse (LEMP) and its effects on the multi-conductor line. The probability of distribution transformers insulation to withstand the stresses caused by lightning overvoltages is inferred from the results of experimental testI documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
