故障解列装置功能分析及其TA极性接法的探讨

Fault Disconnection Device Function Analysis and Measures of Its Current Transformer Polar Wiring Method

讨论了小电源并网对系统继电保护及供电可靠性的影响,介绍了为消除小电源并网影响而装设的故障解列装置的实际应用及功能。接着在故障解列装置过流告警分析中,提出了基于变电站监控及数据采集系统(SCADA)潮流来辅助判定电流互感器(TA)极性接法的方法,该方法可供继电保护技术人员在事故分析或检查新建TA极性接法时加以参考。

This paper discusses the small power supply system interconnecting affection on power system relay and supply reliability. In order to solve the small power supply system＇s problems, the fault disconnection device is ap- plied. Then the function of the fault disconnection device is introduced. In course of a fault disconnection device＇s overcurrent alarm analysis, this paper expounds how to judge current transformer polar wiring method based on su- pervisory control and data acquisition system （SCADA）. The conclusion can be a reference for the relay engineering technicians when they analyze accidents or check polar wiring method in building current transformer.