RESULTS AND CONCLUSIONS
The experiments are carried out in laboratory with the
designed models and the spaces of electrodes are all
Smm, the relationship curves between initiated PD
volt and pressure of the point-point, point-plane,
plane-plane, sphere-sphere and sphere-plane are
shown below from Fig.2 to Fig.6. Then PD waveforms
under the certain pressure are recorded and shown in
Fig7 - Fig.9