대한전기학회:학술대회논문집 (Proceedings of the KIEE Conference)
- 대한전기학회 2003년도 추계학술대회 논문집 전력기술부문
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- Pages.71-74
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- 2003
측정선의 상호유도작용이 접지임피던스의 측정에 미치는 영향
Effect of Mutual Coupling Between Test Leads on Ground Impedance Measurement
- Lee, Bok-Hee (HEIRC, INHA University) ;
- Eom, Ju-Hong (HEIRC, INHA University) ;
- Cho, Sung-Chul (HEIRC, INHA University)
- 발행 : 2003.11.13
초록
Fall-of-potential method is used usually to measure the ground impedance of large scale grounding system exactly. Because the interlinked magnetic flux between closed loops to inject test current and to measure potential rise is existed in E-P-C straight line arrangement, mutual(or inductive) coupling influences greatly on the measurement correctness. Measurement errors produced from inductive coupling could be reduced by the arrangement methods of auxiliary electrodes. Right angle or P-E-C order arrangement methods were effective to reduce the inductive coupling and the decrease degree of measurement error was analysed as quantitative through an experiment.
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