Monitoring partial discharge (PD) activity indeed plays a pivotal role in evaluating the condition and reliability of insulation materials in power cables.​
PD activity can be measured at critical points such as terminations and joints of the cable system. An application of High Frequency Current Transformer- Active (HFCT) along with Transient Earth Voltage (TEV) sensor can help in PD diagnostic and confirmation of internal versus external faults. Noise elimination and PD source separation algorithms are used to reliably localize harmful PD development in the cable system.​
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