三相四线有功电能表接线中不可忽视的问题  

Essential Problems of Three-phase and Four-wire Electric Energy Meter in the Wiring

作　　者：杨淑兰[1] 曹生彪 王晓丽[2] 

机构地区：[1]包钢(集团)公司计量管理处,内蒙古包头014010 [2]包钢(集团)公司高级技术学校,内蒙古包头104010

出　　处：《包钢科技》2009年第1期45-46,63,共3页Science & Technology of Baotou Steel

摘　　要：文章指出了三相四线有功电能表零线采用T接或叉接的必要性,分析了三相四线有功电能表经电流互感器接入时三相二次回路共用并一点接地的弊端,提出了三相四线有功电能表经电流互感器接入时的正确接线方式。The article describes the necessary of T- connecting or forked connecting of three - phase and fourwire active energu meter by the zero wire, analyzes the limitation of the thre - phase circuit when three - phase and four - wire electric energy meter connects in through the current inductor, then introduces the correct wiring method.

关 键 词：三线四线有功电能表 电流互感器 零线 T接 叉接 接地 

分 类 号：TM645.2[电气工程—电力系统及自动化]