“S注入法”与选线定位  

The “S Signal Injection Method” and Its Application in Single Phase to Earth Fault Line Identification and Fault Point Location

作　　者：王慧[1] 范正林[1] 桑在中[1] 

机构地区：[1]山东工业大学电力工程学院

出　　处：《电力自动化设备》1999年第3期18-20,共3页Electric Power Automation Equipment

摘　　要：着重介绍“Ｓ注入法”选线定位新原理，及根据此原理研制的ＴＹ０１及０２型小电流接地系统单相接地选线与定位保护。该保护解决了两相ＴＡ（电流互感器）架空出线小电流接地系统单相接地选线与定位这一重大技术难题，并适应小电流接地系统的各种情况。A novel single phase to earth fault line identification and fault point location principle,which is based on “S Single Injection Method”,is presented.The TY 01 and TY 02 type fault line identification and fault point location devices are developed according to this principle.These are the only feasible devices that can be used in the systems with two phase current transformers(TAs).They can be also used in all kinds of power system with floating neutral point.

关 键 词：电力系统 小电流接地系统 选线定位 继电保护 

分 类 号：TM773[电气工程—电力系统及自动化] TM862