APPARATUS AND METHOD FOR CONDITION DIAGNOSIS AND PREDICTING REMAINS LIFE OF POWER CABLE STATUS USING THE VLF TD MEASURED DATA

摘要

The present invention relates to an apparatus for diagnosing conditions and predicting a remaining life of a power cable using measured data of a very low frequency (VLF) tan delta (TD) and a method thereof, configured to diagnose the state of the power cable by using a VLF TD signal and to determine a replacement time by using a three-dimensional matrix to achieve reproducibility of the state diagnosis of the power cable. The apparatus and method for diagnosing conditions of a power cable and estimating remaining life of the power cable using the measured data of the VLF TD according to the present invention comprises a Weibull modeling unit, a distance limiting unit, a data type classification unit, a quantitative representation unit, a normalization unit, a three-dimensional configuration unit, a risk assessment calculation unit, and a remaining life measurement unit.