This study handles one of the key questions of network operators: How can the remaining life time of underground power cables be estimated. The answer to this question is explained by a new method of KEPCO Korea. When combining VLF Tan Delta (TD) and Partial Discharge (PD) diagnostic it is possible to identify and localize weak individual spots along a cable. After weak spots are clea... https://www.hindirochakkahaniya.com/