基于线路空充稳态电流校验保护的研究  

Research on Steady-state Current Check Protection Based on Line Empty Charge

作　　者：庞宏强 PANG Hongqiang(Xi'an Yitong Thermal Technology Service Co.,Ltd.,Shaanxi Xi'an 710032,China)

机构地区：[1]西安益通热工技术服务有限责任公司,陕西西安710032

出　　处：《农村电气化》2024年第11期44-48,共5页Rural Electrification

摘　　要：基于线路空充稳态电流校验保护,根据线路长度、结构和电压等级,计算稳态容性电流大小及方向,估算得到的稳态容性电流,通过对线路全压冲击,以校验保护装置极性,该方法能够实现电流校验保护,以确保保护装置极性,保证电网安全稳定运行。Based on the steady-state current verification protection of line air charging,the magnitude and direction of steady-state capacitive current are calculated based on the length,structure,and voltage level of the line,and the estimated steady-state capacitive current is used to verify the polarity of the protection device by impacting the full voltage of the line.This method can achieve current verification protection to ensure the polarity of the protection device and ensure the safe and stable operation of the power grid.

关 键 词：线路 保护 极性 

分 类 号：TM77[电气工程—电力系统及自动化]