대한전기학회:학술대회논문집 (Proceedings of the KIEE Conference)
- 대한전기학회 2000년도 하계학술대회 논문집 A
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- Pages.434-436
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- 2000
대지파라미터에 따른 접지저항의 변동 특성에 관한 연구
A Study on the Variation Characteristics of Ground Resistance According to Ground Parameters
- Han, Ki-Boong (Electrical Safety Laboratory Research Institute) ;
- Jeong, Se-Joong (Electrical Safety Laboratory Research Institute) ;
- Lee, Dae-Jong (Electrical Safety Laboratory Research Institute) ;
- Lee, Sang-Ick (Electrical Safety Laboratory Research Institute)
- 발행 : 2000.07.17
초록
It is difficult to accurately measure the ground resistance because it varies widely not only with the type of soil but also with the ground parameters; the moisture, the temperature the buried depth of electrodes, and the ground augmentation material and so on. Therefore, in this paper we analyzed the relation between the parameters and the resistance of ground in order to obtain a method of maintaining ground resistance stable. In experiments, the variation coefficients of ground resistance were calculated by the monthly measured data. The ground resistance decreases as the length of the ground rod increases. The variation between the ground resistance and the moisture rate of soil was low in case of using the ground augmentation material. Without the ground augmentation material, the ground resistance decreases as the moisture rate of soil increases. The ground resistance becomes small when the earth temperature becomes low.
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