新型配电网故障指示器的设计

本文介绍了暂态零模电流相似性在单相接地故障定位中的应用，在此基础上设计了一种具有测量和通信功能的新型配电网故障指示器。该指示器不仅具有传统故障指示器的短路接地故障告警指示功能，还具有线路电流测量功能。测量数据以及故障告警信息通过无线射频方式传送给数据传输终端，数据传输终端通过GPRS将数据传送到配网自动化主站，从而实现配电线路的远程监测。

Design of New Fault Indicator in power distribution Network

The application of transient zero model current similarity in single-phase grounding fault location is introduced in this paper, and designs a new fault indicator with measurement and communication in this theory. It not only has the function of short circuit and earth fault indication, but also has the function of current measurement. Measurement data and fault alarm information were transmitted to data transmission terminal by way of radio frequency. Data transmission terminal transmits the data to the distribution automation master station by GPRS, So as to realize the remote monitoring of distribution line.