| Title |
The partial discharge and breakdown phenomena due to metallic particle in SF6 gas chamber |
| Authors |
Jae-Gul Lee ; Hee-Ro Kwak ; Kook-Hee Cho ; Jung-Shin Park |
| Abstract |
This paper describes the partial discharge due to particles in SF? gas. A model GIS chamber was designed and manufactured. The partial discharge and breakdown phenomena due to the particles between electrodes were observed and partial discharge signals were detected, using an ultrasonic sensor. The analysis of the electric field by the states of the particle inserted between the electrodes, were also carried out. The partial discharge was observed at end while the particle was moving in SF? gas. The partial discharge in micro-gap grows to arc, and after all, it can cause a breakdown. The electric field strength was the highest in case that the particle was vertically attached on the conductor, and the lowest in case that it was horizontally attached on the enclosure. |