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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

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【作者】 朱浩男李云阁郭劲东郑庆浩付周兴

【Author】 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;State Grid Shanxi Electric Power Company Electric Power Research Institute;

【机构】 西安科技大学电气与控制工程学院国网陕西省电力科学研究院

【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。

【Abstract】 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.

  • 【分类号】TM862
  • 【被引频次】10
  • 【下载频次】186
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