A Fault Section Location Method Based on Energy Remainder of Generalized S-Transform for Single-phase Ground Fault of Distribution Networks

2018 ◽  
Author(s):  
Zhenjiang Pang ◽  
Jun Du ◽  
Fan Jiang ◽  
Lianjie He ◽  
Yuling Li ◽  
...  
Keyword(s):  
Single Phase ◽  
Distribution Networks ◽  
Location Method ◽  
Ground Fault ◽  
S Transform ◽  
Generalized S Transform

Research on Single-Phase Grounding Fault in Distribution Networks with a DC Power Positioning Method

2014 ◽  
Vol 530-531 ◽  
pp. 353-356
Author(s):  
Run Sheng Li
Keyword(s):  
Power Distribution ◽  
Single Phase ◽  
Distribution Network ◽  
Distribution Networks ◽  
Power Distribution Network ◽  
Power Outage ◽  
Location Method ◽  
Fault Resistance ◽  
Ground Fault ◽  
Positioning Method

Due to the high ground fault resistance and the complexity of power distribution network structure (such as too many nodes, branches and too long lines), adopting common traveling wave method and ac injection method can not effectively locate the single-phase grounding fault in the distribution network system.To solve above problems and determine the position of the point of failure prisely, this paper adopted the dc location method of injecting the dc signal from the point of failure under the power outage offline. This paper introduces the single phase dc method and the method of three phase dc, and the simulation shows that the dc location method is effective and 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.

Single-phase-to-ground fault section location in flexible resonant grounding distribution networks using soft open points

2020 ◽  
Vol 122 ◽  
pp. 106198
Author(s):  
Zhengtian Li ◽  
Yuqing Ye ◽  
Xiao Ma ◽  
Xiangning Lin ◽  
Feng Xu ◽  
...  
Keyword(s):  
Single Phase ◽  
Distribution Networks ◽  
Ground Fault

scholarly journals Fault Detection Based on the Generalized S-Transform With a Variable Factor for Resonant Grounding Distribution Networks

IEEE Access ◽  
2020 ◽  
Vol 8 ◽  
pp. 91351-91367 ◽  
Author(s):  
Zhinong Wei ◽  
Yuexuan Mao ◽  
Zhihua Yin ◽  
Guoqiang Sun ◽  
Haixiang Zang
Keyword(s):  
Fault Detection ◽  
Distribution Networks ◽  
S Transform ◽  
Variable Factor ◽  
Generalized S Transform

scholarly journals Reflected Traveling Wave Based Single-Ended Fault Location in Distribution Networks

Energies ◽  
2020 ◽  
Vol 13 (15) ◽  
pp. 3917 ◽  
Author(s):  
Yangang Shi ◽  
Tao Zheng ◽  
Chang Yang
Keyword(s):  
Traveling Wave ◽  
Power Distribution ◽  
Fault Location ◽  
Single Phase ◽  
Distribution Network ◽  
Distribution Networks ◽  
Power Distribution Networks ◽  
Reflected Waves ◽  
Ground Fault ◽  
Location Methods

Traveling wave (TW)-based fault-location methods have been used to determine single-phase-to-ground fault distance in power-distribution networks. The previous approaches detected the arrival time of the initial traveling wave via single ended or multi-terminal measurements. Regarding the multi-branch effect, this paper utilized the reflected waves to obtain multiple arriving times through single ended measurement. Potential fault sections were estimated by searching for the possible traveling wave propagation paths in accordance with the structure of the distribution network. This approach used the entire propagation of a traveling wave measured at a single end without any prerequisite of synchronization, which is a must in multi-terminal measurements. The uniqueness of the fault section was guaranteed by several independent single-ended measurements. Traveling waves obtained in a real 10 kV distribution network were used to determine the fault section, and the results demonstrate the significant effectiveness of the proposed method.

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