采用电弧光技术优化中低压母线保护策略  

Using Arc Light Technology to Optimize the Protection Strategy of Medium and Low Voltage Busbar

作　　者：邓勇 李林 马继春 黄华林 Deng Yong;Li Lin;Ma Ji-chun;Huang Hua-lin

机构地区：[1]国网德阳供电公司,四川德阳618000 [2]成都工百利自动化设备有限公司,四川成都610000

出　　处：《电力系统装备》2020年第20期24-25,共2页Electric Power System Equipment

摘　　要：目前35kV和10kV母线一般没有配置母线保护,母线故障只能靠上一级变压器保护作为后备保护,故障难以及时消除,故障对变压器造成较大冲击,甚至导致变压器损坏和大面积停电。通过分析常见几种母线保护的优缺点,提出了采用电弧光保护技术优化中低压母线的保护策略,可以选择性地瞬时切除出线侧或者母线侧故障,并具有高性价比、与母线运行方式无关的优点。Currently 35 kV and 10 kV busbars are generally not equipped with busbar protection.Busbar faults can only rely on the upper-level transformer protection as backup protection.The faults are diffi cult to eliminate in time,and the faults cause great impact on the transformers,and even lead to transformer damage and large-scale blackouts.By analyzing the advantages and disadvantages of several common busbar protections,a protection strategy using arc protection technology to optimize the middle and low voltage busbars is proposed,which can selectively remove faults on the line side or busbar side instantaneously,and is cost-effective and independent of the bus operation mode.advantage.

关 键 词：弧光保护 母线保护 中低压 保护策略 

分 类 号：TM773[电气工程—电力系统及自动化]