전위강하법에 의한 접지저항 측정에 미치는 전류보조전극의 위치의 영향

Effect of the Current Probe Position on Ground Resistance Measurement Using Fall-of-Potential Method

In this paper, the effects of the positions of the current probe on the measurements of the ground resistanc, and potential gradients with fall-of-potential method are described, and the testing techniques to minimize the measuring errors are proposed. The fall-of-potential method is theoretically based on the potential and current measuring principle and the measuring error is primarily caused by the position of the measuring auxiliary probes. The ground resistance is calculated by applying the 61.8% lute using fall-of-potential method.