Results 11 to 20 of about 61,877 (349)

Improvement of single-phase grounding fault detection for small resistance grounding systems based on steady-state monitoring information in the substation

Zhejiang dianli, 2023
In order to use the existing hardware sources to improve the line selection performance of single-phase grounding fault of small resistance grounding systems， a method for line selection of single-phase grounding fault based on the global steady-state ...
LIU Jian, ZHU Qingsong, WANG Yizhao, ZHANG Zhihua, CHEN Jieyu   +4 more
doaj   +1 more source

Distribution Network Voltage Arc Suppression Method Based on Flexible Regulation of Neutral Point Potential of the New Grounding Transformer

Frontiers in Energy Research, 2022
Aiming at the problems that the existing arc suppression cabinet technology cannot adjust the zero sequence voltage flexibly and the control and hardware implementation of active arc suppression equipment based on power electronics are difficult, a new ...
Wu Lifang, Bai Hao, Zhou Ke, Yuan Zhiyong, Yu Xiaoyong, Lei Jinyong, Zou Yu, Zhang Yuan   +7 more
doaj   +1 more source

Research on a New Single-End Fault Location Method for Single-Phase Grounding Faults of Transmission Lines Through Transition Resistance

Frontiers in Energy Research, 2021
A single-end fault location method for single-phase nonmetallic grounding faults of transmission lines in a double terminal system is studied and proposed.
Botong Li, Lin Shi, Weijie Wen, Bin Li, Xiaolong Chen, Jiang Su   +5 more
doaj   +1 more source

Fault Line Selection of Single Phase Grounding Based on Wavelet Packet Full Frequency Analysis and OS-ELM

Journal of Harbin University of Science and Technology, 2021
In order to enhance effectiveness of single-phase ground fault feature extraction and to achieve exactly identification of fault line selection，a new fault line selection method of single phase grounding fault based on wavelet packet and online ...
JI Wen-lu, ZHAO Xiao-long, ZHANG Ming, YANG Hong-lei, WENG Jia-ming   +4 more
doaj   +1 more source

Research on Single-phase Grounding Fault Line Selection Based on VMD Method

Journal of Physics: Conference Series, 2023
Single-phase ground faults occur most frequently in low-current grounding systems due to the complexity of the power grid. For the stable. Analyzing the fault transient signal is necessary for detecting single-phase grounding faults, accurately ...
Yong Chen, Feng Liu, Tingdong Zhou, Panpan Li, Ping Gan, Mou Hou   +5 more
semanticscholar   +1 more source

Flexible arc suppression method for single-phase to ground fault in distribution network based on Z-type grounding transformer

Gong-kuang zidonghua, 2022
The coal mine power supply and distribution system usually adopts the neutral point non-effectively grounded method. Most of the power supply lines in this method use cable lines.
SI Weibin, MA Kexiang, LEI Zhirong, DANG Changfu, SONG Guobing, YUN Baoji, LIU Bin   +6 more
doaj   +1 more source

Fault Characteristic Analysis of Single-Phase Grounding Fault in AC grid of Energy Router in Interacted and Interconnected Micro Grid [PDF]

E3S Web of Conferences, 2021
The energy router composed of double active bridge (DAB) can interconnect multiple voltage level AC distribution network through DC lines to form AC/DC hybrid distribution network.
Sang Zi-xia, Fang Reng-cun, Lei He, Yang Dong-jun, Chen Zhu, Yan Jiong   +5 more
doaj   +1 more source

The online monitoring method of single-phase grounding fault in medium voltage distribution network based on multi-measuring point information

Journal of Physics: Conference Series, 2023
To reduce the error of single-phase ground fault and improve the security and stability of distribution network operation, an online monitoring method for single-phase ground fault in a medium voltage distribution network based on multi-measuring point ...
Daolu Zhang, Dan Wu, Junhong Lin, F. Huang   +3 more
semanticscholar   +1 more source

Feasibility analysis of neutral grounding by small reactor of HVDC converter transformer

Energy Reports, 2022
Nowadays, the scale of power grid is remarkably increasing and there is a continuous reinforcement of AC–DC hybrid systems. Thus, the single-phase grounding fault currents on the AC grid-side of rectifier and inverter stations increase significantly ...
Ensheng Zhao, Yang Han, Yuxiang Liu, Amr S. Zalhaf, Congling Wang, Ping Yang   +5 more
doaj   +1 more source

Fault protection method of single-phase break for distribution network considering the influence of neutral grounding modes [PDF]

, 2020
With the rapid development of modern distribution network and the access of distributed generation, the network structure is becoming increasingly complex.
Luo, Yongjie, Ouyang, Jinxin, Wang, Yutong, Xiao, Yang, Xiong, Xiaofu   +4 more
core   +2 more sources