TTU接入过程中避免CT开路的检测方法  

Detection Method for Avoiding Open Circuit of CT During the Access of TTU

作　　者：欧朱建 张俊俊 缪晓卫 戴卉婷 曹越 韩耀东 高星辰 OU Zhujian;ZHANG Junjun;MIAO Xiaowei;DAI Huiting;CAO Yue;HAN Yaodong;GAO Xingchen(State Grid Nantong Power Supply Company,Nantong 226000,China;Nantong Branch of Nanjing Jingwei Patent and Trademark Agency Co.,Ltd.,Nanjing 211100,China)

机构地区：[1]国网江苏省电力有限公司南通供电分公司,江苏南通226000 [2]南京经纬专利商标代理有限公司南通分公司,江苏南通211100

出　　处：《电工技术》2021年第24期83-84,88,共3页Electric Engineering

基　　金：江苏省电力有限公司科技项目“基于TTU的配电台区主动自治管理关键技术”(编号J2021010)。

摘　　要：针对TTU接入过程中接线盒内电压电流导线接反造成的CT开路问题展开讨论。首先给出TTU接入过程中利用接线盒进行电压回路开路及电流回路短路操作的方法,其次分析接线盒内电压电流线路接反导致CT开路的原理,最后提出两种检测接线盒内电压电流线路是否接反的方法,以有效减少接线错误导致的CT开路问题。The open circuit of CT caused by the reverse connection of voltage and current wires in the junction box during TTU connection is discussed.Firstly,the method of open circuit operation of voltage circuit and short circuit operation of current circuit using junction box in the process of TTU access is given.Secondly,the principle of CT open circuit caused by reverse connection of voltage and current lines in the junction box is analyzed.Finally,two methods to detect whether the voltage and current lines in the junction box are connected reversely are proposed to effectively reduce the CT open circuit problem caused by wiring errors.

关 键 词：TTU接入 CT开路 检测方法 

分 类 号：TM07[电气工程—电工理论与新技术]