浅析内桥主接线主变保护闭锁备自投的投退原则  

Discussion on Switching Principle of Blocking Automatic Bus Transfer Equipment by Main Transformer Protection under Internal Bridge Main Connection

作　　者：伍红文 

机构地区：[1]梧州供电局电力调度中心,广西梧州543002

出　　处：《广西电力》2013年第4期60-62,共3页Guangxi Electric Power

摘　　要：为防止110 kV内桥主接线方式下备自投装置的误动或拒动,从设计和应用两方面对常见内桥主接线方式下的高压侧进线备自投、高压侧桥备自投装置功能及动作进行分析,总结出了科学合理的不同主接线方式下主变压器保护动作闭锁备自投功能的投退原则,有效地避免了备自投误动或拒动对主变压器造成不必要的损坏,确保了电网安全稳定可靠运行。In order to prevent the unwanted operation or failure to operation of protection of automatic bus transfer equipment under 1 lOkV internal bridge main connection mode, the function and action of automatic bus transfer equipments for the incoming line and the bridge of high voltage side under common internal bridge main connection mode are analyzed from aspects of design and application. Switching Principle of blocking automatic bus transfer equipment by main transformer protection under different main connection modes are summarized, which can avoid damages to main transformer by the unwanted operation or failure to operation of automatic bus transfer equipment and thus guarantee the security and stability operation of power grid.

关 键 词：内桥主接线 主变压器保护 闭锁备自投 投退原则 

分 类 号：TM773[电气工程—电力系统及自动化]