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Single-Phase Grounding Fault Types Identification Based on Multi-Feature Transformation and Fusion [PDF]
Sensors, 2022 The frequent occurrence of single-phase grounding faults affects the reliable operation of power systems. When a single-phase grounding fault occurs, it is difficult to accurately identify the fault type because of the weak characterization and subtle ...
Min Fan, Jialu Xia, Xinyu Meng, Ke Zhang
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Machines, 2022 The continuous operation of 1000 MW large hydro generators in China is of great value to the implementation of “double carbon strategy” and power grid safety.
Bin Xiong, Long Zhou, Shuye Ding
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Phase Selection Method for 10 kV Three-Core Cables Under Single-Phase Grounding Fault Transient Based on Surface Magnetic Field Sensing [PDF]
SensorsSingle-phase grounding is the dominant fault type in urban power distribution networks. Because the total magnetic flux would not change around the cable under a single-phase grounding fault, ferromagnetic zero-sequence current sensors cannot distinguish
Hang Wang +6 more
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IET Generation, Transmission & Distribution, 2021 To solve the problem of difficult location (especially high grounding resistances) for single‐phase grounding faults in distribution networks, a fault location method based on equivalent admittance distortion rate is proposed in this paper.
Yougen Chen +3 more
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AIP AdvancesThis article mainly introduces the impedance based single-phase grounding fault location method for distribution networks, including its theoretical basis, algorithm steps, and simulation verification.
Sha Wang, Shengkai Wei
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2023 IEEE/IAS Industrial and Commercial Power System Asia (I&CPS Asia), 2023 Zero-sequence voltage and current based single-phase grounding (SPG) fault detection and location methods in non-effectively grounded distribution network have limitations in practical use due to lack of zero-sequence CT and PT in some cases.
Zhongxue Chang +5 more
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Single-phase grounding fault line selection method based on zero-sequence current increment
Energy Reports, 2022 To address single-phase grounding fault line selection problem in small current grounding distribution network, the paper proposes a fault line selection method based on zero-sequence current (ZSC) increment.
Bai Hao
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Engineering Reports, 2023 The neutral point of the distribution network is grounded with low resistance, which can quickly remove single‐phase grounding fault and effectively suppress overvoltage. However, the existing zero‐sequence overcurrent protection has a high setting value.
Gang Wang, Liyi Wang
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Simulation Analysis of Single-phase Grounding Fault of Resonant Grounding System
Gong-kuang zidonghua, 2012 For problem of difficult line selection caused by small current of fault line with uncertain direction when single-phase grounding fault happens in resonant grounding system, the paper theoretically analyzed change law of zero-sequence voltage and zero ...
LI Hui, TANG Yi, SUN Chang-qing
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Single-Phase Grounding Fault Identification Based on Transition Conductance Tracking Method
Mathematical Problems in Engineering, 2022 The instability of single-phase grounding faults makes it difficult to track the fault development process accurately. In this paper, a transition conductance tracking method for single-phase grounding fault identification is established to perceive the health state of the distribution network.
Zhuochao Wu +4 more
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