220 kV电网旁路代路纵联保护通道切换问题的研究  

Research on switching problem of bypass longitudinal protection channel in 220 kV power grid

作　　者：莫健记 Mo Jianji(Zhanjiang Power Supply Bureau,Guangdong Grid Co.,Ltd.,Zhanjiang 524000,China)

机构地区：[1]广东电网有限责任公司湛江供电局

出　　处：《无线互联科技》2019年第21期107-108,共2页Wireless Internet Technology

摘　　要：电网技术的不断发展和更新使得电压等级和电网结构得到有效的优化,从而为全国联网工程目标的有效实现提供可能性。保护线路内部故障的有效切除能够对电力系统并列运行的稳定性和输送效率产生直接的影响,纵联保护的形式能够为电力系统的稳定性提供保障。文章从旁路代路保护通道切换方案入手,对光纤纵联保护旁路代切换回路和实际应用中光纤纵联差动保护的注意事项进行详细的阐述。此次研究的目的是明确旁路代路纵联保护通道切换在220 kV电网中的重要性。With the continuous development and renewal of power grid technology, the voltage grade and power grid structure can be effectively optimized, thus providing the possibility for the effective realization of the national network engineering goal. The effective removal of the internal fault of the protection line can directly affect the stability and transmission efficiency of the parallel operation of the power system, and the stability of the power system can be guaranteed by the form of longitudinal protection. Starting with the switching scheme of the bypass protection channel, this paper expounds in detail the matters needing attention in the optical fiber longitudinal protection and the optical fiber longitudinal differential protection. The aim of this study was to identify the bypass route of the importance of protection channel switching in 220 kV power grid.

关 键 词：220 KV电网 旁路代路 纵联保护通道 通道切换 

分 类 号：TM7[电气工程—电力系统及自动化]