병렬접지전극의 길이 및 이격거리에 따른 접지임피던스의 주파수의존성 분석

초록

In this paper, a survey of the frequency-dependent grounding impedance depending on the separation and the length of two parallel ground rod is presented and analyzed. Because of the potential interface, the measured ground resistance of the two parallel ground rods electrodes is greater than the resultant ground resistance from the ground resistances of the isolated ground rods. The aspect of the frequency-dependent grounding impedance of the parallel grounding electrodes is nearly similar to that of the isolated grounding electrodes regardless of the length of ground rods