故障防护的五组连续不等式解析  

Analysis of Five Groups of Continuous Inequalities for Fault Protection

作　　者：杨新军 焦建雷 YANG Xinjun;JIAO Jianlei(Qinhuangdao Institute of Architectural Design,Qinhuangdao 066000,China;Beijing Scientech International Project Management Co.,Ltd.,Beijing 100048,China)

机构地区：[1]秦皇岛市建筑设计院有限公司,河北秦皇岛066000 [2]北京兴电国际工程管理有限公司,北京100048

出　　处：《现代建筑电气》2023年第7期36-40,57,共6页Modern Architecture Electric

摘　　要：配电系统故障防护难以实现是因为防护措施及断路器级间的配合都需要满足连续不等式。简要介绍了故障防护的重要性,分析了自动切断电源的故障防护措施的实施条件。通过实例介绍实施自动切断电源的故障防护的分析过程。Fault protection in distribution systems is difficult to achieve because the four protection measures and the coordination between circuit breakers need to meet continuous inequalities.This paper briefly introduces the importance to fault protection,focuses on the implementation conditions of the fault protection measures of automatic power cut off,introduces the analysis process of implementing the fault protection of automatic power cut off through examples.

关 键 词：故障防护 连续不等式 剩余电流动作保护 三相不平衡电流保护 

分 类 号：TM64[电气工程—电力系统及自动化]