Abstract
Electrical/optical measurements have been carried out to study the dynamic behaviour of discharge on an ice surface. Significant differences in behaviour between positive and negative arcs have been revealed during discharge propagation. Also, its root structure, shape and velocity were found to be strongly polarity dependent. High-speed photography of the decays observed during discharge propagation showed two different patterns for dc positive and negative. Using simultaneous analysis of the captured pictures along with the current measurements at anode and cathode a mechanism describing the observed patterns is proposed.
| Original language | English |
|---|---|
| Article number | 185202 |
| Pages (from-to) | 1-12 |
| Number of pages | 12 |
| Journal | Journal of Physics D: Applied Physics |
| Volume | 43 |
| Issue number | 18 |
| DOIs | |
| Publication status | Published - May 2010 |
Keywords
- ice surface
- polarity
- dc arcs