母线三相短路时防止快切装置误动的几项措施  

Countermeasures for Unwanted Action of Fast Switching Device at Bus Three-phase Short-circuit

作　　者：邢鹏生 XING Pengsheng(The Energy Center of Jiuquan Iron and Steel Group,Jiayuguan,Gansu 735100,China)

机构地区：[1]酒钢集团能源中心动力分厂

出　　处：《冶金动力》2019年第10期37-39,共3页Metallurgical Power

摘　　要：冶金企业生产负荷大多数为二级负荷,某10kV配电站一次系统均采用单母线分段接线方式,为提高供电可靠性部分重要负荷站所安装有无扰动备用电源快速投入装置(快切)。对一起母线三相短路故障时快切装置误动原因进行分析并提出了几点防范措施。The production loads in steelmaking enterprises are mostly secondary loads, so the primary system of a 10 kV substation adopted the model of single bus segment connection and some important load stations were equipped with rapid switching device of undisturbed standby power supply (fast switching) to improve power supply reliability.The paper analyzes the causes of unwanted action of fast switching device at a three-phase short-circuit accident of bus and puts forward some preventive measures.

关 键 词：快切装置 三相短路 误动 

分 类 号：TM86[电气工程—高电压与绝缘技术]