摘要
针对近年来发电厂发生的多起380 V地保护越级动作造成380 V电机控制中心(Motor Control Center,MCC)母线失压事故,部分发电厂因同时受其他因素影响,导致发电机组发生非计划停运事故。因此,提出厂用电系统接地保护越级的动作解决方案,从而保障设备在投产运营期的安全稳定运行。
Aiming at the power plants in recent years,many 380 V ground protection overstep action caused by 380 V Motor Control Center(MCC)bus loss of voltage accidents,some power plants at the same time by other factors lead to unplanned shutdown of generating units occurred accidents.Therefore,we propose a solution for the grounding protection overrun of the plant power system to ensure the safe and stable operation of the equipment during the commissioning and operation period.
作者
马敏
MA Min(State Power Investment Group GCL Binhai Power Generation Co.,Ltd.,Yancheng 224500,China)
出处
《通信电源技术》
2023年第13期52-54,共3页
Telecom Power Technology
关键词
厂用电
接地保护
越级动作
power consumption
grounding protection
stepping forward action
