Ground fault accident point exploration device and ground fault accident point exploration method

摘要

PROBLEM TO BE SOLVED: To provide a ground fault accident point exploration device and a ground fault accident point exploration method capable of specifying an accident point in which a ground fault accident has occurred. A ground fault accident point detection device is capable of ignoring a capacitance to ground of a distribution line, and is a static electricity of a magnitude that can cause resonance when connected to a distribution line having a ground fault. Acquires the discharge current of a power supply capacitor that has a capacitance, a DC power supply that supplies the power to charge the power supply capacitor, and the power supply capacitor when the power supply capacitor is connected to a distribution line with a ground fault and the power is applied. , The obtained maximum attenuation α of the discharge current and the vibration frequency f [Hz] are obtained, and a ground fault is generated from the power application point based on the obtained maximum attenuation α and the vibration frequency f. And an analysis unit for locating the distance to the existing point. [Selection diagram] Figure 1