Abstract Admittance based tripping criteria afford reliable earth fault protection of MV distribution feeders. Although highly effective for persistent earth fault detection, they often fail in the case of intermittent arcing faults when employed in the conventional protection schemes. In this paper the new approach to persistent and intermittent earth faults detection is proposed. The method is based on calculation of the cumulative intermittent arcing fault duration time. The validation based on data from numerical modeling of earth faults in EMTP as well as data recorded in real MV networks confirms the effectiveness of the approach.

中文翻译：

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使用导纳标准检测间歇性接地故障的新方法

摘要 基于导纳的跳闸标准为中压配电馈线提供可靠的接地故障保护。虽然它们对于持续接地故障检测非常有效，但在传统保护方案中使用时，它们经常会在间歇性电弧故障的情况下失败。在本文中，提出了持续性和间歇性接地故障检测的新方法。该方法基于累积间歇电弧故障持续时间的计算。基于 EMTP 中接地故障数值建模的数据以及真实 MV 网络中记录的数据的验证证实了该方法的有效性。