低压侧分支型变压器备自投逻辑实施方案  

Automatic switch-in scheme for low side branches type transformer

作　　者：王莉[1] 马瑞萍[1] 吴进宝[1] 张丽萍[1] 李立杰 

机构地区：[1]郑州供电公司试验所,河南郑州450006 [2]河南电力物资公司,河南郑州450000

出　　处：《电力系统保护与控制》2008年第23期121-124,共4页Power System Protection and Control

摘　　要：近年来,低压分支变压器得到了广泛使用,该类型变压器对限制低压短路电流,提高母线残压都有很大的帮助,且对低压侧断路器的选型提供了更大的选择空间,提高了变电站运行的灵活性。随着低压分支变压器的运行,与之相适应的备自投问题也日益突出,如何解决低压分支变压器的备自投问题逐渐成为提高该类型变电站供电可靠性的关键点。In recent years, low-voltage branch transformer has been widely used, the type low-voltage transformer has a lot of help to limit short-circuit current and improve bus residual pressure, and provide a greater selection of options to improve the substation run flexibility. With the operation of low-voltage branch transformer, the corresponding automatic switch-in problem has become more prominent, how to solve those problems is becoming more and more important.

关 键 词：备用电源自投 低压分支变压器 备自投逻辑 供电可靠性 

分 类 号：TM762[电气工程—电力系统及自动化]