Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
399491 | International Journal of Electrical Power & Energy Systems | 2013 | 5 Pages |
Gas-insulated systems are now a major component of power transmission and distribution systems all over the world. There has been considerable interest in non-thermal discharges over the past decade due to the increased number of industrial applications. Diverse applications demand a solid physical and chemical understanding of the operational principals of such discharges. This paper focuses on the most important and widely used variety of non-thermal discharges, the corona discharge. Positive corona in SF6 is studied for a point to plane electrode gap using Monte Carlo simulation technique. The initiation and development of successive avalanches are traced as function of time. The simulation provides a detailed structure of avalanches from which essential properties of corona discharge with regard to total field distribution, propagation of successive avalanches and ion distribution can be discerned.
► Dielectrics play a critical role in the performance of high voltage power equipments. ► Gases are the simplest and the most widely used dielectrics. ► The corona discharge commonly occurs in many engineering devices and processes. ► This reflects the great importance of evaluation of the corona characteristics. ► The simulation of the corona is necessary for predicting the performance of a device.