In this paper, the electrical characteristics of the positive pulsed c
orona in a wire-cylinder type reactor are investigated. The injected e
nergy and charge into the discharging volume per pulse and per unit le
ngth of corona emitting wire are adopted to evaluate the power source,
electric circuits, and the corona wire, The discharging current lasts
from several hundred nanoseconds to a few microseconds, The current,
power peak values, and the injected energy and charge per pulse per un
it length of emitting wire can reach up to 60 A/m, 5 MW/m, 480 mJ/m, a
nd 8 mu C/m, respectively, The energy conversion efficiency related to
the output energy from the pulse forming capacitor and the energy del
ivered to the discharging volume can reach up to 90%. All results are
obtained at room temperature and in air.