수직 접지전극의 합성 접지임피던스의 주파수의존성의 모의해석

초록

Parallel ground electrodes are used to reduce the ground resistance. However, when many ground electrodes are closely buried in parallel, combined ground resistance and impedance are influenced by potential interference and are a small reduction compared with the resultant ground resistance and impedance of ground rods. This paper presents a theoretical analysis for combined frequency-dependant ground impedance with the consideration of potential interference. The frequency-dependant ground impedance of two-vertical ground rods installed in parallel is analyzed by the distributed parameter circuit model. The data obtained from the simulation method proposed in this work are in good agreement with the measured results.