Open AccessA Method of Single Phase-to-ground Fault Section Location for Closed-loop Distribution Networks
Author(s) -
Qi Zheng,
Renyu Xue
Publication year - 2019
Publication title -
iop conference series. materials science and engineering
Language(s) - English
Resource type - Journals
eISSN - 1757-899X
pISSN - 1757-8981
DOI - 10.1088/1757-899x/631/4/042042
Subject(s) - fault (geology) , loop (graph theory) , section (typography) , mode (computer interface) , sequence (biology) , scope (computer science) , point (geometry) , closed loop , phase (matter) , computer science , field (mathematics) , zero (linguistics) , distribution (mathematics) , control theory (sociology) , topology (electrical circuits) , engineering , physics , mathematics , electrical engineering , control engineering , geology , geometry , mathematical analysis , artificial intelligence , control (management) , philosophy , linguistics , biology , genetics , operating system , quantum mechanics , programming language , combinatorics , seismology , pure mathematics
In the field of fault location technology for neutral point non-effectively grounded distribution network, the original radial mode of operation is no longer applicable due to the gradual expansion of the scope of application of loop operation mode. By analyzing the zero-sequence equivalent circuit of closed-loop network, this paper finds out the characteristics of zero-sequence current when single phase-to-ground fault occurs in different sections, and puts forward the location method according to the characteristics. ATP simulation shows that this method is accurate and effective.