中压电机启动引发辅变开关柜综合报警故障分析  

Analysis of Comprehensive Alarm Fault of Auxiliary Transformer Switch Cabinet Caused by Medium Voltage Motor Starting

作　　者：刘晓东 LIU Xiaodong(CNNC Nuclear Power Operation Management Co.,Ltd.,Haiyan 314300,China)

机构地区：[1]中核核电运行管理有限公司,浙江海盐314300

出　　处：《电工技术》2023年第5期203-207,共5页Electric Engineering

摘　　要：在核电厂厂用电机负荷中,有不少大功率电机,如主冷却剂泵、电动给水泵、循环水泵等,额定功率均超过5000 W,这些大电机在启动时有可能导致其所在6 kV厂用电母线电压明显降低。通过对电动给水泵电机启动引发辅变开关柜综合报警故障的分析,阐述大电机启动对母线电压的影响,为相关技术人员提供了类似故障的分析方法和处理经验。In the load of nuclear power plant motors,there are many high-power motors,such as main coolant pumps,electric feed pumps,circulating water pumps,etc.When the power ratings exceed 5000 W,these large motors may cause a significant reduction in the voltage of the bus bus of the 6 kV plant when started.Through the analysis of the comprehensive alarm fault of the auxiliary switchgear caused by the start of the electric feed pump motor,the influence of the large motor on the bus voltage is explained,and the analysis method and treatment experience of similar faults are provided for relevant technicians.

关 键 词：大电机启动 厂用电 母线电压 

分 类 号：TM306[电气工程—电机]