低压配电短路电流检测与分断机构技术

Short Circuit Fault Current Detection and Rapid Breaking Actuator Technologies of Low Voltage Distribution System

介绍了短路故障的危害。分析了目前低压配电系统短路故障识别方法的研究及应用现状。指出了各种短路故障识别方法的技术特点、局限性及不足。综合分析了短路故障快速分断机构技术。提出短路故障早期检测与快速分断机构有机结合的技术趋势,研制具有这种技术特性的控制和保护的集成电器是智能低压配电系统产品的技术方向。

This paper introduced the harm of short circuit fault and analyzed the current research of identification method of the short circuit fault in low voltage distribution system. Especially, the technical characteristics of a variety of identification methods of short circuit fault were analyzed. The rapid breaking actuator technologies of low voltage distribution system were summarized. This paper presents the principle and tendency of integrated electrical technology used in the early stage of breaking fault in distribution system. The technology can extract short circuit fault feature in distribution system effectively with the rapid breaking actuator.