Results 111 to 120 of about 44,894 (246)

Reinventing Effective Grounding Systems via Optimal Soil Composition, Thickness, and Replacement Parameters Under Fault Conditions

IEEE Access
This paper investigates the impact of soil replacement around a ground grid on its performance, with a focus on replacing the base soil with a lower-resistivity material and analyzing the influence of the replaced layer’s area and thickness.
Ahmed El-Tayeb Khalil, Adel Zein El Dein, Mahmoud Ramadan Hefny, Matti Lehtonen, Mohamed M. F. Darwish   +4 more
doaj   +1 more source

A Single‐Phase Grounding Fault Line Selection Method for Flexible Grounding Active Distribution Networks Based on the Ratio of Zero‐Sequence Current Changes

IET Electric Power Applications
Single‐phase grounding faults (SPGFs), especially high‐resistance faults, significantly weaken the electrical characteristics of active distribution networks (ADNs), thereby posing considerable challenges for faulted line selection (FLS).
Shi Su, Yuan Li, Xuehao He, Qingyang Xie, Jiali Su, Fahui Chen, Botong Li, Changqi Wang   +7 more
doaj   +1 more source

Online monitoring and diagnosis of HV cable faults by sheath system currents [PDF]

, 2017
Dong, Xiang, Hepburn, Donald M., Yang, Yang, Zhou, Chengke   +3 more
core   +1 more source

Arc Suppression and Fault Detection Method for Distribution Network Faults Based on Line Voltage Feeding

Shanghai Jiaotong Daxue xuebao
In order to improve the reliability and convenience of the voltage-reduction arc suppression device, a zero-sequence voltage flexible control method based on line voltage series modulation damping grounding is proposed, and its application in arc ...
XU Honghua, LIU Baowen, XU Ziqiang, LIU Delin, YU Baoqi
doaj   +1 more source

How to protect a wind turbine from lightning [PDF]

Techniques for reducing the chances of lightning damage to wind turbines are discussed. The methods of providing a ground for a lightning strike are discussed.
Dodd, C. W., Mccalla, T., Jr., Smith, J. G.   +2 more
core   +1 more source

Research on the countermeasures of the single-phase-to-earth faults in flexibly grounded distribution networks

Alexandria Engineering Journal
In a neutral, flexible, grounded distribution network, the phenomenon that a single-phase ground fault with high impedance connected in parallel with a low resistance can result in a relatively lower zero-sequence current flowing through the faulty ...
Xiaofeng Ren, Yunhao Bai, Yongzheng Dai, Rui Liang, Hailong Gao, Lingdong Su, Xiao Zhang, Lingchang Kong, Peng Zhang   +8 more
doaj   +1 more source

Design and Validation of an Enhanced Earthing System for Low Ground Resistance [PDF]

Iranian Journal of Electrical and Electronic Engineering
Grounding systems are critical for ensuring electrical safety, minimizing fault currents, and enhancing infrastructure reliability, particularly in regions with high-resistivity soil.
Akinola Oladeji, Samuel Nahum
doaj  

Fault line selection method for resonant grounding systems based on DTW-Hilbert and improved K-means

Gong-kuang zidonghua
Due to the influence of factors such as arc suppression coils, transition resistance, and environmental noise, the fault signal characteristics in resonant grounding systems are weak.
ZHANG Zhaoxi, ZHANG Hongle, HUANG Yanfa, CHEN Xingxiang, JIA Haicheng, YUAN Pengsheng   +5 more
doaj   +1 more source

A linearly controlled direct-current power source for high-current inductive loads in a magnetic suspension wind tunnel [PDF]

The NASA Langley 6 inch magnetic suspension and balance system (MSBS) requires an independently controlled bidirectional DC power source for each of six positioning electromagnets.
Daniels, Taumi S., Tripp, John S.
core   +1 more source

Effect of high resistive barrier on earthing system

, 2003
Substation earthing provides a low impedance path and carries current into ground under normal and fault conditions without adversely affecting continuity of service.
Chen, G, Osman, M, Pilling, N
core