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접지시스템 주파수 특성의 측정과 해석Measurement and Analysis of Frequency Characteristics of Grounding Systems
- Other Titles
- Measurement and Analysis of Frequency Characteristics of Grounding Systems
- Issue Date
- 2004
- Publisher
- 대한전기학회
- Keywords
- ground impedance; ground mesh; frequency characteristics; EMTP
- Citation
- 전기학회논문지 C권, v.53, no.5(C), pp.248 - 252
- Journal Title
- 전기학회논문지 C권
- Volume
- 53
- Number
- 5(C)
- Start Page
- 248
- End Page
- 252
- ISSN
- 1229-246X
- Abstract
- Since DC ground resistance, which is a good index of the performance of a grounding system in low frequency, does not show the performance in transient state. We measured ground impedances in frequeny domain ranging from 0.1 Hz to 900 kHz maximum to quantify the transient grounding performance of 4 types of grounding system. Transfer function was derived from the measured frequency-dependant ground impedance of a grounding grid. A simulation has been performed to verify the transfer function using EMTP (Electro-Magnetic Transient Program).
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