| Title |
Characteristics of Electric and Magnetic Field Profiles from Transformer and GIS Perimeters |
| Authors |
이복희 ; 이승칠 ; 안창환 ; 길형준 ; 장석훈 ; 박동화 ; 곽희로 |
| Abstract |
This paper deals with the power frequency electric and magnetic profiles from transformer and gas-insulated swichgear(GIS) perimeters in the indoor power substation. Measurements of electric and magnetic field magnitudes were carried out by using single axis and three axes field meters at a height of 1[m]. The resultant electric and magnetic field profiles measured in the vicinity of the transformer were displayed as a 2-dimensional plot. The electric fields intensity are relatively low value of about 2.3~9[V/m], and the magnetic fields intensity range from 0.3 to 20.3[μT]. Also, in the GIS perimeter the electric fields intensity are in the range of 2.2~2.5[V/m], and the high magnetic fields are largely localized to the intermediate section of the GIS and their amplitudes are 1.2~39.5[μT]. Metal enclosures of transformer and GIS play a role in reducing the electric field, and the magnetic fields are characterized by a rapid decrease with distance horn the transformer and GIS enclosures. |