| Title |
The Partial Discharge Properties of Oxidized Polyethylene |
| Keywords |
인공보이스 ; 부분방전 ; 절연내력 ; 산화시료 ; 방전개시전압 Artificial Void ; Partial Discharge ; Dielectric Strength ; Oxidized Sample ; Discharge Starting Voltage |
| Abstract |
To investigate degradation procedure and life time of the oxidized PE and the unoxidized PE, alternative voltage is applied to the CIGRE Method-II (CM-II) electrode system, which is loaded artificial void, and measures the distribution of partial discharging generation. From the results, the samples etched by oxidation had wide degradation area of dielectric strength. Furthermore, discharge starting voltage was shifted to low voltage, the discharge generation frequency was high and consequently, the quantity of mean charge becomes small. Also, life time of the oxdized sample is shortened according as the oxidation time is longer. |