变压器励磁涌流引起高压同步电动机差动误动作的原因分析及对策  

Cause Analysis and Countermeasures of Differential Maloperation of High Voltage Synchronous Motor Caused by Transformer Inrush Current

作　　者：吴奇 WU Qi(Power Plant of Xiangtan Iron and Steel Group Co.,Ltd.,Xiangtan,Hunan 411101,China)

机构地区：[1]湘潭钢铁集团有限公司动力厂,湖南湘潭411101

出　　处：《冶金动力》2021年第2期6-8,14,共4页Metallurgical Power

摘　　要：钢铁企业高炉风机大多使用高压同步电动机驱动。论述了一起变压器励磁涌流引起高压同步电机差动误动作的原因分析,并制定了相关措施。Most blast furnace fans in iron and steel enterprises are driven by high voltage synchronous motor.This paper discusses the causes of differential misoperation of high voltage synchronous motor caused by inrush current of transformer,and draws up relevant measures.

关 键 词：高压同步电动机 差动保护 变压器励磁涌流 

分 类 号：TM41[电气工程—电器]