Rejuvenation of power cables addresses water trees, voids, or electrical trees. Partial discharge (PD) in joints or terminations are addressed by the sustained pressure rejuvenation process, which replaces all terminations and joints. In this study, partial discharge inception voltage (PDIV) is found to increase by 27% for each 0.1%w in crease in fluid concentration in field-aged rejuvenated cable samples. The mechanism of rejuvenation is discussed in which PD mechanism is prevented by plasticizing the dielectric, filling the voids, smoothing electrical stress, and sequestering free electrons in field-aged cables.

中文翻译：

---

复兴解决了电力电缆中的局部放电

电力电缆的修复可以解决水树，空隙或电气树的问题。接头或端子的局部放电（PD）通过持续的压力修复过程来解决，该过程取代了所有端子和接头。在这项研究中，发现在现场老化的再生电缆样品中，流体浓度每升高0.1％w，局部放电起始电压（PDIV）就会增加27％。讨论了振兴机理，其中通过在绝缘老化的电缆中塑化电介质，填充空隙，平滑电应力以及隔离自由电子来防止PD机理。