The Method Analysis of Overhead Transmission Line Single-Phase Grounding Fault Detection and Location

Abstract:

Small current grounding power system is widely used in overhead transmission line in medium voltage distribution network in China. Because of its long lines, branch, space truss structure is complex, low level of automation, It is easily influenced by outside force and the natural environment, and single-phase grounding failure rate is high. It is an important topic to quickly and accurately detect the location of the fault line, and improve the reliability of power supply and distribution system.This paper has carried on the induction and the comparison of various fault detection and location method of overhead transmission line which is currently used in single phase to ground, and analyzed their advantages and disadvantages,given the corresponding conclusions, provided the reference for finding out the reasonable single-phase earth fault location method or improvement.

• Periodical: Advanced Materials Research (Volumes 1030-1032)
• Pages: 1360-1365
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.1030-1032.1360
• Online since: September 2014
• Authors: Yun Hong Dai*, Shi Bin Liang, Ming Yao Hu, Ying Na Li, Zhen Gang Zhao, Tao Xie, Qing Sheng Tian, Chuan Li
• Keywords: Detection, Distribution Network, Location, Methods of Analysis, Single-Phase Grounding Fault, Small Current Grounding System

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