• ISSN 0258-2724
  • CN 51-1277/U
  • EI Compendex
  • Scopus
  • Indexed by Core Journals of China, Chinese S&T Journal Citation Reports
  • Chinese S&T Journal Citation Reports
  • Chinese Science Citation Database
Volume 19 Issue 6
Dec.  2006
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Article Contents
GUO Lei, GAO Shibin, LI Qunzhan. Protection of Impedance-Matching Balance Traction Transformer Based on Transformer Model[J]. Journal of Southwest Jiaotong University, 2006, 19(6): 737-742.
Citation: GUO Lei, GAO Shibin, LI Qunzhan. Protection of Impedance-Matching Balance Traction Transformer Based on Transformer Model[J]. Journal of Southwest Jiaotong University, 2006, 19(6): 737-742.

Protection of Impedance-Matching Balance Traction Transformer Based on Transformer Model

  • Received Date: 18 Oct 2005
  • Publish Date: 25 Dec 2006
  • To identify inrush currents and short-circuit currents caused by internal faults,the transformer protection principle based on the transformer model was used for impedance-matching balance traction transformers(IMBT).By analyzing the electromagnetic characteristics of IMBT,voltage balance equations were derived.As a result,protective actions can be decided by analyzing the difference between the two sides of the voltage balance equations.The action characteristic and action formula for the protection of IMBT were obtained,and the setting principles were put forward by considering errors from current transformer,voltage transformer and protection sets.Finally,a numerical simulation was carried out to show the validity of the action characteristic and protective principles.

     

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  • 王增平,徐岩,王雪,等.基于变压器模型的新型变压器保护原理的研究[J]. 中国电机工程学报,2003,12(23):54-58.WANG Zenping,XU Yan,WANG Xue,et al.Study on the novel transformer protection principle based on the transformer model[J]. Proceedings of the CSEE,2003,12(23):54-58.[2] KASZTENNY B,KEZUNOVIC M.Digital relays improve protection of large transformer[J]. IEEE Computer Applications in Power,1998,11 (4):39-45.[3] 郭蕾.阻抗匹配平衡变压器的暂态分析仿真[D]. 西南交通大学,2005.GUO Lei.Transient simulation and analysis of the impendence-matched balancing transformer[D]. Southwest Jiaotong University,2005.[4] 熊媛,高仕斌.牵引变压器空投时差动保护误动分析及改进[J]. 电力自动化设备,2000,20(6):17-19.XIONG Yuan,GAO Shibin.Analysis on the malfunction of differential protection for traction transformer and its improvement[J]. Electric Power Automation Equipment,2000,20 (6):17-19.[5] 王维俭,桂林,王祥珩.主设备保护若干问题的商榷[J]. 电力系统自动化,2001,12:58-61.WANG Weijian,GUI Lin,WANG Xiangyan.Discussion on some problems existing in the main equipment protection[J]. Automation of Electric Power Systems,2001,12:58-61.
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