CURRENT TYPE EARTH RESISTANCE MEASURING SYSTEM CAPABLE OF ENABLING EASY DETECTION OF EARTH RESISTANCE OF AN EARTH GROUND ELECTRODE

摘要

PURPOSE: A current type earth resistance measuring system is provided to monitor the variation of earth resistance in real time by simply measuring the earth resistance of the earth ground electrode.;CONSTITUTION: A current type earth resistance measuring system(100) comprises a power supply unit(110), a first detector(120), a second detector(130), and a controller(140). The power supply unit supplies measured voltage to the first and second detectors in order to apply current to the earth ground electrode. The first detector comprises a first switch and a first current detector for detecting a first resistor having a first resistance and a first current flowing in the first resistor. The second detector comprises the second switch and the second current detector for detecting a second resistor having a second resistance and a second current flowing in the second resistor. The controller controls the operation of the first and second detectors.;COPYRIGHT KIPO 2012