摘要
为有效提高20 kV配电网供电可靠性,有必要对20 kV母线保护方案加以探索和改进。在分析比较现有20 kV母线保护方案的基础上,提出了电弧光保护方案并阐述了其基本原理和系统组成。结合嘉兴110 kV金沙变电站工程实例,分析探讨了20 kV双单母接线、单母四(六)分段环形接线等3种情况下电弧光保护系统的各种配置方案,得出20 kV母线典型接线方式下最优配置方式。
In order to improve power supply reliability of 20 kV distribution networks, it is necessary to ex- plore and improve 20 kV bus protection scheme. On the base of comparing existing 20 kV bus protection schemes, the paper proposes arc light protection scheme and elaborates on basic principles and system com- ponents. In combination with 110 kV Jinsha substation project in Jiaxing, the paper discusses various configu- ration schemes of arc protection system in case of 20 kV single/double bus and single-bus four （six）-segment annular connection, and it concludes optimal configuration mode in typical connection of 20 kV bus.
出处
《浙江电力》
2013年第1期20-23,共4页
Zhejiang Electric Power
关键词
20
KV
母线
电弧光保护
分段环形接线
20 kV
bus
arc light protection
segmented annular connection
