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Fault Line Detection in Small Current Grounding Systems Based on RBF Network
Third International Conference on Natural Computation (ICNC 2007), 2007It is a long-standing issue on fault line detection of single-phase grounding fault in the small current grounding systems. If only one fault line detection method is used, fault information will be analyzed partially, which is not enough for fault line detection; and there are different fit conditions for every method.
Yundong Song +3 more
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Research on fault line selection in small-current neutral grounding power system
Proceedings of 2013 IEEE International Conference on Vehicular Electronics and Safety, 2013A method of fault line selection was proposed based on fault grounded point transfer and wavelet transform in small-current neutral grounding system in this paper. Phase-separation vacuum circuit breaker was installed in the busbar and realize fault grounded point transfer through vacuum breaker of fault phase when single-phase-to-ground fault occurs ...
Hai-Jun Cheng, Hui Meng, Pi-Jie Jiang
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Automatic Tuning Arc Suppression Coil Current in a Small Grounding System
Applied Mechanics and Materials, 2014Equipped Petersen coil systems can compensate for the capacitance of the line current, the single-phase ground fault current flows through the capacitor grounding point for the minimum point of the arc of a reliable ground fault arc , to avoid reigniting , prevent arcing ground fault point phase faults caused by short circuit .
Hui Lin Zhang, Yu Bo Zhao, Feng Zhen Liu
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Summary of Fault Line Selection for Single-phase Grounding in Small Current Systems
2020At present, fault line selection theory of small current grounding system mainly focuses on solving the reliability problem of urban power supply system. There is little research on the line selection theory of mine distribution network, but single phase ground fault in mine distribution network will cause more harm.
Xianhui Zhu +4 more
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Adjusting the Degree of Compensation of Small Current Grounding System Petersen Coil
Applied Mechanics and Materials, 2014While the system is equipped with Petersen coil caused by the switching operation can prevent a different period , single-phase disconnection and other factors neutral point displacement , so that the neutral point voltage is too high, the threat of insulation safety equipment .
Xiang Dong Zhao, Feng Zhen Liu, Ye Tian
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2020 5th International Conference on Power and Renewable Energy (ICPRE), 2020
The fault characteristics of the small current grounding system are not obvious when the fault occurs. Currently, it is hard to accurately select and locate the ground fault in the small current grounding system. Therefore, in this paper, a scheme of fault grounding line selection and location is proposed based on the characteristic of the zero ...
Kaiji Liao +4 more
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The fault characteristics of the small current grounding system are not obvious when the fault occurs. Currently, it is hard to accurately select and locate the ground fault in the small current grounding system. Therefore, in this paper, a scheme of fault grounding line selection and location is proposed based on the characteristic of the zero ...
Kaiji Liao +4 more
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Automatic fault line selection technology for small current grounding system
2017 2nd International Conference on Power and Renewable Energy (ICPRE), 2017The low voltage distribution network in our country widely adopts non-direct grounding system, called as small current grounding system. Single-phase ground fault is the most common occurrence for this system. Now, some power supply departments in our country still recognize fault lines by traditional artificial method, meaning low efficiency and ...
Ge Beichang +5 more
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2012 International Conference on Wavelet Active Media Technology and Information Processing (ICWAMTIP), 2012
Firstly, we use MATLAB to simulate the small current grounding grid single-phase grounding fault. Secondly,we apply the GHM multiwavelet transform to analyze the transient electric signal caused by single-phase earth fault.
null Yu-Ling Luo, null Hui Luo
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Firstly, we use MATLAB to simulate the small current grounding grid single-phase grounding fault. Secondly,we apply the GHM multiwavelet transform to analyze the transient electric signal caused by single-phase earth fault.
null Yu-Ling Luo, null Hui Luo
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Fault Location Method for Small Current Grounding System Based on Transient Information
2020 IEEE/IAS Industrial and Commercial Power System Asia (I&CPS Asia), 2020The transient quantity contains a wealth of fault information after a single-phase ground fault occurs in a small current grounding system. This paper analyzes the transient process after the fault and get the conclusions that the magnitude of the main resonant frequency and its corresponding component is related to the fault distance.
Wei Bao +3 more
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Applied Mechanics and Materials, 2013
In case of the arc suppression coil for neutral point grounding of small current grounding system, when single-phase grounding fault occurs, due to the arc suppression coil for fault line of the compensation effect of the zero sequence current, the fault features is not obvious, it can't implement the fault line selection and fault point location. This
Jun Zhou, Ke Zheng Cao
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In case of the arc suppression coil for neutral point grounding of small current grounding system, when single-phase grounding fault occurs, due to the arc suppression coil for fault line of the compensation effect of the zero sequence current, the fault features is not obvious, it can't implement the fault line selection and fault point location. This
Jun Zhou, Ke Zheng Cao
openaire +1 more source