A novel current travelling wave based single-ended fault location method for locating single-phase-to-ground fault of transmission line

2015 ◽  
Author(s):  
Aoyu Lei ◽  
Xinzhou Dong ◽  
Shenxing Shi ◽  
Bin Wang
Keyword(s):  
Transmission Line ◽  
Fault Location ◽  
Single Phase ◽  
Travelling Wave ◽  
Location Method ◽  
Ground Fault

A Distribution Network Fault Location Method Based on Reverse Wave and Wavelet Analysis

2015 ◽  
Vol 713-715 ◽  
pp. 1369-1372
Author(s):  
Xue Ming Zhai ◽  
Huan Xia ◽  
Long An
Keyword(s):  
Generating Functions ◽  
Fault Location ◽  
Single Phase ◽  
Travelling Waves ◽  
Distribution Network ◽  
Travelling Wave ◽  
Location Method ◽  
Ground Fault ◽  
Modulus Maximum ◽  
Network Fault

Based on the analysis of the transient process of the electric line’s developing ground fault, this paper applies the oppositely-directed travelling wave fault location method to fault location in distribution network. Simultaneously, this paper chooses proper wavelet generating functions to find the modulus maximum of oppositely-directed travelling waves and summarizes the methods and steps of this oppositely-directed travelling wave fault location. Finally, PSCAD/EMTDC is used to simulate the single-phase ground fault to verify the oppositely-directed travelling wave fault location method.

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

2014 ◽  
Vol 1030-1032 ◽  
pp. 1360-1365
Author(s):  
Yun Hong Dai ◽  
Shi Bin Liang ◽  
Ming Yao Hu ◽  
Ying Na Li ◽  
Zhen Gang Zhao ◽  
...  
Keyword(s):  
Fault Detection ◽  
Transmission Line ◽  
Fault Location ◽  
Single Phase ◽  
Small Current ◽  
Location Method ◽  
Overhead Transmission Line ◽  
Advantages And Disadvantages ◽  
Supply And Distribution ◽  
Space Truss

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.

A Single-Phase-to-Ground Fault Location Method Based on Deep Belief Network

2021 ◽  
pp. 303-314
Author(s):  
Jia-Min Li ◽  
Shi-Jian Liu ◽  
Xiang Shao ◽  
Jeng-Shyang Pan
Keyword(s):  
Fault Location ◽  
Single Phase ◽  
Deep Belief Network ◽  
Location Method ◽  
Belief Network ◽  
Ground Fault

Online Method for Location of Single Phase to Ground Fault through Cement Pole in Distribution Network

2014 ◽  
Vol 494-495 ◽  
pp. 1739-1742
Author(s):  
Hong Yu Yang
Keyword(s):  
Theoretical Analysis ◽  
Distribution System ◽  
Distribution Systems ◽  
Fault Location ◽  
Single Phase ◽  
Distribution Network ◽  
Voltage Gradient ◽  
Simulation Experiments ◽  
Location Method ◽  
Ground Fault

In China,most of distribution system is neutral noneffectively grounded. And the single-phase fault often happens through cement pole. In this paper,firstly,the voltage of the fault phase and the current of cement pole are derived in 10kV neutral noneffectively grounded distribution systems when cement pole has single-phase ground fault.Secondly,the online fault location method is proposed based on voltage gradient of cement pole.Thirdly,the resistence characristic of cement pole is analyzed and the distance obtained from the gradient voltage of cement pole is given.Finally, the theoretical analysis and simulation experiments show that the method is feasible.

scholarly journals Model and Experimental Detection of Single Phase-to-Ground Fault for Overhead Wires in Distribution Networks by Location Method

2020 ◽  
Vol 216 ◽  
pp. 01043
Author(s):  
Minullin Renat ◽  
Piskovatsky Yuri ◽  
Kasimov Vasil
Keyword(s):  
Transmission Line ◽  
Simulation Model ◽  
Single Phase ◽  
Signal Propagation ◽  
Distribution Networks ◽  
Field Conditions ◽  
Location Method ◽  
Overhead Lines ◽  
Overhead Transmission Line ◽  
Ground Fault

The simulation model of the overhead transmission line channel implemented in PSCAD software allowing researches of location signal propagation via overhead lines of the distribution networks 6–35 kV under conditions of single phase-to-ground fault is considered. The model reflectograms are compared with their appropriate experimental reflectograms registered under the laboratory and field conditions for the overhead lines during simulation of various types of the single phase-to-ground faults.

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