Transient current based earth fault location for distribution automation in non-effectively earthed networks

2009 ◽  
Author(s):  
Xu Bingyin ◽  
Ma Shicong ◽  
Xue Yongduan ◽  
P. Gale
Keyword(s):  
Fault Location ◽  
Transient Current ◽  
Distribution Automation ◽  
Earth Fault

Study of Earth-Fault Location Method for Distribution Network Based on Transient Signal

2011 ◽  
Vol 105-107 ◽  
pp. 742-746
Author(s):  
Zhi Chao Huang ◽  
Yi Zhong ◽  
Cai Lin Li ◽  
Mu Liu ◽  
Sheng Zhen Yang
Keyword(s):  
Frequency Band ◽  
Fault Location ◽  
Characteristic Impedance ◽  
Distribution Network ◽  
Transient Current ◽  
Transient Signal ◽  
Location Method ◽  
Earth Fault ◽  
Current Energy ◽  
Feature Frequency

According to the generating process and propagation characteristics of earth-fault transient signal, an earth-fault location method for distribution network based on transient signal is presented. In the method, in order to change line characteristic impedance, a resonant filter circuit is paralleled in line segment border, so that it could cause transient current energy differences in feature frequency band on both sides of detection device. The location method achieves earth-fault area location through comparing transient current energy and energy attenuation coefficient in feature frequency band. The simulation test result shows that the method isn't influenced by distribution system grounded style, operation style and other factors and which could detect the earth-fault area rapidly and reliably in distribution network and has a high project application value.

Transmission line fault location for single-phase-to-earth fault on non-direct-ground neutral system

1998 ◽  
Vol 13 (4) ◽  
pp. 1086-1092 ◽  
Author(s):  
Zhang Qingchao ◽  
Zhang Yao ◽  
Song Wennan ◽  
Fang Dazhong
Keyword(s):  
Transmission Line ◽  
Fault Location ◽  
Single Phase ◽  
Neutral System ◽  
Earth Fault

scholarly journals Using simulation modelling of 6–35 kV power lines for improving the accuracy of double earth fault location

Vestnik IGEU ◽  
2018 ◽  
pp. 40-49 ◽  
Author(s):  
A.L. Kulikov ◽  
◽  
M.D. Obalin ◽  
V.Yu. Osokin ◽  
T.R. Sharafeev ◽  
...  
Keyword(s):  
Fault Location ◽  
Simulation Modelling ◽  
Power Lines ◽  
Earth Fault

scholarly journals Detection and Location of Earth Fault in MV Feeders Using Screen Earthing Current Measurements

Energies ◽  
2020 ◽  
Vol 13 (5) ◽  
pp. 1293 ◽  
Author(s):  
Krzysztof Lowczowski ◽  
Jozef Lorenc ◽  
Jozef Zawodniak ◽  
Grzegorz Dombek
Keyword(s):  
Fault Location ◽  
Overhead Lines ◽  
Earth Fault ◽  
Ground Fault ◽  
Detection And Identification ◽  
Zero Sequence ◽  
Network Experiment ◽  
System Configurations ◽  
Zero Sequence Voltage ◽  
Core Current

The paper analyzes the utilization of cable screen currents for earth fault identification and location. Attention is paid on cable and mixed feeders—cable and overhead lines. The principle of operation is based on utilization of 3 criterion values: Ratio of cable screen earthing current and zero sequence cable core current—RF110/15, phase shift between cable screen earthing current and zero sequence cable core current—α and cable screen admittance defined as a ratio of cable screen earthing current and zero sequence voltage—Y0cs. Earth fault location is possible thanks to discovered relation between RF110/15 and α, whereas Y0cs allows for reliable detection of earth faults. Detection and identification are very important because it allows to increase the reliability of supply—reduce downtime and number of consumers affected by the fault. The article presents a phase to ground fault current flow for different power system configurations. At the end solution, which improves location capabilities is proposed. The solution is analyzed in PSCAD software and verified by network experiment.

Incorporating earth fault location in management-control scheme for distribution networks

2016 ◽  
Vol 10 (10) ◽  
pp. 2389-2398 ◽  
Author(s):  
Mahmoud A. Elsadd ◽  
Tamer A. Kawady ◽  
Matti Lehtonen ◽  
Abdel-Maksoud I. Taalab ◽  
Nagy I. Elkalashy
Keyword(s):  
Fault Location ◽  
Distribution Networks ◽  
Management Control ◽  
Earth Fault ◽  
Control Scheme
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