The availability of accurate and cost-effective solutions for the real-time monitoring of overhead covered conductors (CC) is now becoming an important tool for the reliability and condition assessments of this class of electrical lines. This is even more crucial due to the possibly large number of conductors and the wide geographical spread of the electrical network. This letter proposes a smart and compact detector for partial discharge (PD) based monitoring, matching the above needs and offering a flexible and cost-effective solution with some important features, including a non-invasive sensing, a field energy harvesting function, and a low-power working operation. The detector has been designed and implemented, proving its effectiveness on real cases involving PD-affected 10 kV CC lines.

中文翻译：

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用于灵活监测 10 kV 架空导线局部放电的紧凑型探测器


用于实时监控架空导线 (CC) 的准确且经济高效的解决方案现已成为此类电力线路可靠性和状态评估的重要工具。由于可能存在大量导体且电网地理分布广泛，这一点更为重要。这封信提出了一种用于局部放电（PD）监测的智能紧凑型探测器，满足上述需求，并提供灵活且经济高效的解决方案，具有一些重要功能，包括非侵入式传感、现场能量收集功能和低功率工作运行。该检测器已经设计并实现，在涉及受局部放电影响的 10 kV CC 线路的实际案例中证明了其有效性。