한국정보통신설비학회:학술대회논문집
- 한국정보통신설비학회 2004년도 하계학술대회
- /
- Pages.211-214
- /
- 2004
접지임피던스의 주파수 의존성 측정기법
Measurement Method of the Frequency Dependent Characteristics of Ground Impedance
초록
The measurement system of ground impedance is based on a computer aided technique. The magnitude and phase of ground impedance were determined by the novel measurement and analysis using the revised fall-of-potential method. The ground impedances of the ground rod of 30 m long are considerably dependent on the frequency. The ground impedance is mainly resistive in the frequency range of 3-20 kHz. At higher frequencies, the reactive components of the ground impedances are no longer negligible and the inductance of the ground rod was found to be the core factor deciding the ground impedance.
키워드