JOURNAL OF SHANDONG UNIVERSITY (ENGINEERING SCIENCE) ›› 2018, Vol. 48 ›› Issue (1): 117-123.doi: 10.6040/j.issn.1672-3961.0.2016.294

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A traveling wave fault location method for T-type transmission line based on combined traveling wave principle

SHAO Jian1, WEI Peiyu1, CHEN Ping1, LIANG Fengqiang2, MENG Chao3   

  1. 1. College of Electrical and Electronic Engineering, Shandong University of Technology, Zibo 255049, Shandong, China;
    2. Linyi Power Supply Company, Linyi 276003, Shandong, China;
    3. Linyi Zhengxin Engineering Survey and Design Co., Ltd, Linyi 276005, Shandong, China
  • Received:2016-07-28 Online:2018-02-20 Published:2016-07-28

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Abstract: In order to solve the fault location problem of T-type transmission line, combined with the propagation characteristics of fault traveling wave in transmission line with T-type branch, a combined traveling wave ranging method of T transmission line was proposed. A traveling wave fault location method for T-type transmission line based on combined traveling wave principle was proposed. The theory of double end range was used to judge fault interval. The single-ended range principle was used to get the fault distance Compared with that the traditional T-type transmission line fault location method was mainly suitable for overhead line, the proposed method not only could be used for hybrid transmission lines, but also improve the ranging accuracy. The PSCAD simulation results showed the effectiveness and practicability of this method, which could improve the ranging accuracy and provide accurate and reliable distance measuring results.

Key words: hybrid transmission lines, combined traveling wave, PSCAD simulation, T branch

CLC Number: 

  • TM77
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