| 摘要 |
PROBLEM TO BE SOLVED: To provide an electric leakage detector capable of detecting accurately leak even when a stray capacitance 7 is great, by impressing an alternating current to a main circuit 1 to detect a power consumption thereof. SOLUTION: This electric leakage detector for detecting the leak in the main circuit 1 insulated from a grounding circuit is provided with an alternating current power source 2 for impressing the alternating current between the main circuit 1 and the grounding circuit, an electric power detection circuit 9 for detecting electric power consumed between the main circuit 1 and the grounding circuit due to the alternating current impressed by the alternating current power source 2, and an electric leakage determination circuit 6 for determining whether the electric leakage is generated in the main circuit 1 or not, on the basis of the electric power detected by the electric power detection circuit 9. COPYRIGHT: (C)2006,JPO&NCIPI
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