ELECTRICAL AND OPTICAL INVESTIGATIONS OF TRANSIENT HIGH PRESSURE DISCHARGE PHENOMENA

The object of our study is the induced formation of streamers (thin current filaments with radius of the order of several hundreds of µm) and spark in steady-state positive corona. It is well known, there are three main current modes (1-diffusive Hermstein glow, 2-streamers, 3-spark) for a centimeters gap positive pin-plane corona in ambient air, which follow in that order with increase of applied voltage. It is common, a critical value o