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학술연구/단체지원/교육 등 연구자 활동을 지속하도록 DBpia가 지원하고 있어요.
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연구자들이 자신의 연구와 전문성을 널리 알리고, 새로운 협력의 기회를 만들 수 있는 네트워킹 공간이에요.
논문 기본 정보
- 자료유형
- 학술저널
- 저자정보
- 발행연도
- 2012.1
- 수록면
- 54 - 60 (7page)
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When the transient current with high frequency components such as lightning surges are injected the grounding electrodes, the performance of grounding electrodes should be evaluated as grounding impedance. It is restricted to analyze the grounding impedance by measurement approach since the grounding impedance is very different with the shape and size of grounding electrodes, resistivity and relative permittivity of soil and the frequency component of the injected current. So a variety of simulation approaches have been developed. Typically, the soil resistivity measured with low frequency and relative permittivity between 1 and 80 are used for simulation of the grounding impedance. However, the resistivity and relative permittivity of soil are changed with frequency of injected current. In this paper, the frequency-dependent resistivity and relative permittivity of soil are measured and these parameters are reflected in the simulation of the grounding impedance of a ground rod. The simulated results are compared with the measured results. As a result, the simulated results with frequency-dependent soil parameters show capacitive aspect like measured results in the frequency of lower than 100[㎑] and they are more consistent with the measured results in wide frequency range.
목차
Abstract
1. 서론
2. 토양의 저항률 및 비유전율의 주파수의존성
3. 접지임피던스 측정계 및 해석조건
4. 결과 및 고찰
5. 결론
References
저자소개
참고문헌 (15)
참고문헌 신청
1. [학술지(정기간행물)] - Leonid Grcev / 2009 / Impulse Efficiency of Ground Electrode / IEEE Trans. Power Del. 24 (1) : 441 ~ 451
2. [학술지(정기간행물)] - N. Theethayi / 2007 / External Impedance and Admittance of Buried Horizontal Wires for Transient Studies Using Transmission Line Analysis / IEEE Trans. Dielectrics and Electrical Insulation 14 (3) : 751 ~ 761
3. [단행본] - A. Rousseau / 2004 / Practical high frequency measurement of a lightning earthing system / ICLP
4. [학술지(정기간행물)] - F. E. Menter / 1994 / EMTP-based model for grounding system analysis / IEEE Trans. on P.D 9 (4) : 1838 ~ 1849
5. [학술지(정기간행물)] - Y. Liu / 2001 / An improved Transmission-Line Model of Grounding System / IEEE Trans. EMC 43 (3) : 348 ~ 355
2. [학술지(정기간행물)] - N. Theethayi / 2007 / External Impedance and Admittance of Buried Horizontal Wires for Transient Studies Using Transmission Line Analysis / IEEE Trans. Dielectrics and Electrical Insulation 14 (3) : 751 ~ 761
3. [단행본] - A. Rousseau / 2004 / Practical high frequency measurement of a lightning earthing system / ICLP
4. [학술지(정기간행물)] - F. E. Menter / 1994 / EMTP-based model for grounding system analysis / IEEE Trans. on P.D 9 (4) : 1838 ~ 1849
5. [학술지(정기간행물)] - Y. Liu / 2001 / An improved Transmission-Line Model of Grounding System / IEEE Trans. EMC 43 (3) : 348 ~ 355
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