某电厂2#电锅炉变的保护开关定值优化评估
Optimization Evaluation of Protection Switch Setting for No.2 Boiler Transformer of a Power Plant
刘怡君 1山江川 1魏彦勋 1陈晓勇1
作者信息
- 1. 中核核电运行管理有限公司,浙江 嘉兴 314300
- 折叠
摘要
某电厂 2#电锅炉供电方式发生改变后,在电锅炉空充时由于励磁涌流导致过流保护动作,多次发生跳闸.故重新进行保护核算,对相关保护定值优化评估,提高继电保护动作的可靠性、灵敏性、选择性、速动性的四性指标,保障电气一次设备安全稳定运行.
Abstract
After the change of power supply mode of No.2 electric boiler in a certain power plant,during the electric boil-er empty charging,inrush current caused the activation of overcurrent protection,resulting in repeated occurrence of trip-ping.Therefore,the present work conducted re-accounting of the protection,and optimized and evaluated the value set-ting of relevant constants of protection,so as to improve reliability,sensitivity,selectivity and speed of the relay protec-tion action and ensure safe and stable operation of electrical primary equipment.
关键词
励磁涌流/故障录波/过流保护Key words
magnetic inrush current/fault recording/overcurrent protection引用本文复制引用
出版年
2023
NETL
NSTL
维普
万方数据