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전력전자학회 ICPE(ISPE)논문집 2001년 ICPE논문집
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    초록·키워드

    Generally, grounding systems are responsible for the safe operation of a power system Their performance guarantees equipment protection and personnel safety under condition of the limited ground potential rise and touch voltages as well as step voltages under ground fault conditions Therefore, it is necessary to measure the ground resistance frequently for checking the performance of grounding system,
    In this paper the ground resistance measuring system using digital signal processor and high-performance L-C resonant band pass filter is presented. The signal current magnitude for measuring ground resistance in this system is 10^-1 [A] to 5×l0^-2 [A] and the current frequency is 30[Hz]

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      UCI(KEPA) : I410-ECN-0101-2009-560-014237849