一种新型逆功率保护的方案设计  

Scheme Design of a New Type Reverse Power Protection

作　　者：赵厚滨[1] 张西利[2] 张红梅[1] 

机构地区：[1]江苏省电力公司,江苏南京210024 [2]南京南瑞继保电气有限公司,江苏南京211100

出　　处：《电工技术》2006年第4期25-26,共2页Electric Engineering

摘　　要：目前有的110kV终端变电所的低压侧带有小电源,当110kV线路发生永久性故障时无法快速有效隔离故障点。本文提出了在主变高压侧增加逆功率方向保护逻辑,该逻辑增加之后,保护能可靠动作。There are small power plants on the low voltage side of some 110kV terminal substations. When permanent fault happened on the 110kV line, the fault spot can not be isolated quickly and effectively. This paper puts to add logic of reverse power directional protection to the high voltage side of main transform. After the logic was put into effect, the protections acted correctly and effectively.

关 键 词：主变 保护 逆功率 

分 类 号：TM773[电气工程—电力系统及自动化] TM726