| Title |
A Study on the Space Charge Measurement Technique and Carrier Polarity of Insulating Materials on Power Cable |
| Keywords |
케리어 극성 ; 하전입자 ; 공간전하 ; 열자격전류 ; 전력 케이블 Carrier Polarity ; Charged Particles ; Space Charge ; Thermally Stimulated Current ; Power Cable |
| Abstract |
In this paper, it is attempted to distinguish the charged particles and to judge the polarity by the use of Thermally Stimulated Current(TSC) and Temperature Gradient Thermally Stimulated Surface Potential Measurement(TG-TSSP)with experimental insulation material XLPE-EVA for power cables which is made by blending cross-linked polyethylene(XLPE) and ethylene-vinylacetate copolymer(EVA). In addition, it is performed to investigate the effect of EVA blending. From the experimental results, it is known that for the case of XLPE-EVA blended experimental material, the generation of space charged electric field is not obtained in the high temperature region due to the obatruction of the injection of trapping carrier by the electron and the positive hole. |