两线三变扩大外桥接线桥开关备自投应用方案的改进  

The improved measurement of the back-up auto-switch-on application of the external bridge breakers of the two incoming feeders and three transformers substation

作　　者：池昌炎 

机构地区：[1]厦门电业局,福建厦门361004

出　　处：《继电器》2008年第8期95-97,共3页Relay

摘　　要：阐述了目前常用的两线三变扩大外桥接线桥开关备自投方案。针对其存在的缺点,提出简单可行的改进方案,并对改进方案的优缺点进行分析。根据改进方案的逻辑原理,提出方案的实现方法,编写出实际工程应用的软件流程图。This paper discusses the measurement of current auto-switch-on application of the external bridge breakers of the two incoming feeders and three transformers substation. Based on the disadvantages of current measurement, this paper discusses a simple but useful improved measurement and details its advantages and disadvantages. Based on the logic principles of the improved measurement, this paper also introduces how to realize it and draws the flow chart of the applicable program.

关 键 词：备自投 方案 两线三变 桥开关 

分 类 号：TM762[电气工程—电力系统及自动化]