A new method of locating the single wire fault

A new technique is proposed to detect and locate the wire fault using impedance spectroscopy (IS). Impedance Spectroscopy (IS) is applied to measure the input impedance of the wiring system. The load impedance of the wire fault can be abstracted from the input impedance in order to identify the type of wire faults. The input impedance is a period function of the frequency and the period of this function is linearly proportional to the distance to the fault. The fast Fourier transform of the input impedance can give a single spike to locate the wire fault. This novel method enables the location of hard (open and short circuits) and soft (wire faults with small impedance changes) faults. The input impedance of the wire faults in the defined low frequency range can be applied to identify the types of wire faults. The capacitance and inductance of the cable system can be applied to detect the wire fault if it is open or short circuit. The absolute deviation of the wire fault location in this study is maximal 40 cm and is independent on the distance to a wire faults.