2022 Volume 15 Issue 2 Pages 131-135
Nowadays, electrostatic theories are usefully applied to various industries. However, incidents could be caused by electrostatic discharge in manufacturing industries, such as fire and explosion disasters in chemical industries. Therefore, it is very important to develop electrostatic control products. In order to quantitatively evaluate the electrostatic hazards, a numerical analysis method based on plasma discharge theory is required. In this work we present an evaluation approach for electrical insulation using Townsend theory and streamer theory of breakdown in gases. The particle tracking method is used for air dielectric breakdown at atmospheric pressure. By this method, the Townsend ionization coefficient is integrated along the lines of electric field and the integrated values are compared with the threshold criterion of dielectric breakdown. As a result, the dielectric breakdown of the air gaps between rod-plate and plate-plate electrodes are evaluated. Furthermore, the validity of the particle tracking method for evaluating electrical insulation is verified.
