配电网单相接地故障消失后PT饱和过电流分析  

Analysis of PT Saturation Over-Current After Single-Phase Ground Fault Disappears of Distribution Network

作　　者：朱浩男 李云阁 郭劲东 郑庆浩 付周兴[1] ZHU Hao-nan;LI Yun-ge;GUO Jin-dong;ZHENG Qing-hao;FU Zhou-xing(School of Electrical and Control Engineering,Xi'an University of Science and Technology,Xi'an 710000,China;State Grid Shanxi Electric Power Company Electric Power Research Institute,Xi'an 710000,China)

机构地区：[1]西安科技大学电气与控制工程学院,陕西西安710000 [2]国网陕西省电力科学研究院,陕西西安710000

出　　处：《变压器》2020年第10期35-40,共6页Transformer

摘　　要：通过瞬时对称分量法分析了单相接地故障消失后,电压互感器电荷流动的暂态过程与引起过电流的影响因素,基于ATP-EMTP电磁暂态仿真软件对10kV配电网系统单相接地故障模型进行了仿真分析,并提出相应的抑制措施。The transient process of the voltage transformer charge flow and the factors caused overcurrent are analyzed by the instantaneous symmetric component method after single-phase ground fault disappears. A single-phase ground fault model of 10 kV distribution network system is anslysed based on the ATP-EMTP electromagnetic transient simulation software, and the corresponding suppression measures are put forward.

关 键 词：互感器 单相接地 电磁暂态仿真 消谐电阻器 

分 类 号：TM451[电气工程—电器]