Barrier Discharge Characteristics and Ozone Generation on Twin Needles-Plane Electrode Configuration in Dry Air

Abstract

Barrier discharge characteristics have been investigated for twin needles-plane electrode configuration in dry air. Characteristics of partial discharge depending on the distance between the tips of twin needles have been focused. In the case of d equal to 1.0mm˜2.0mm (d : distance between the tips of twin needle), the discharge inception voltage value increased compared with that of the single needle-plane electrode configuration. Moreover, for the d equal to 4.0mm, the discharge inception voltage value became almost the same value in the case of the single needle. It is considered that the differences of the discharge inception voltage value have been caused by the influence of tip of needle each other. In addition, discharge images by intensified still camera and CCD camera, power consumption, and ozone concentration were examined.