邵民杰（华东建筑设计研究院有限公司，上海市　200002）

Technical Analysis for the Selection and Application of 3-pole and 4-pole ATSE

Qu Degang（Shanghai Electrical Apparatus Research Institute（Group） Co.，Ltd.，Shanghai 200063，China）

Shao Minjie（East China Architectural Design & Research Institute Co.，Ltd.，Shanghai 200002，China）

Abstract Selection of 3-pole and 4-pole ATSE varies depending on the power nature，the grounding types of distribution system，load characteristics and different main switch performance，two modes are available for the N-pole conversion of 4-pole ATSE，namely，synchronization conversion and overlapping conversion. Reasonable selection and use of ATSE is one of the main links to ensure the reliable operation of emergency power supply system.

Key words　ATSE 4-pole N-pole conversion mode

摘　要　ATSE　三、四极的选用会因电源性质、配电系统接地型式、负载性质及主开关性能不同而选择不同，四极　ATSE　的　N　极转换有同步转换和重叠转换二种方式，合理选择与使用　ATSE　是保障应急供电系统可靠运行的主要环节之一。

关键词　ATSE　四极　N　极转换方式