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Recent years, double-ended techniques for PD location in MV cables emerged in large numbers. Nevertheless, great majority of the methods face the challenge of the time-synchronization between the two cable terminals because of the satellite invisibility and atmospheric condition problems in the global positioning system (GPS) receiver. Conventional methods adopt free running 1PPS to synchronize system...
This paper presents a method for noise elimination when using frequency-tuned resonant system to conduct partial discharge measurement on MV cables. An additional pulse transformer is employed to detect the switching actions and identify the occurrence time. This method is verified through high voltage test on a 10 kV power cable.
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