Results 41 to 50 of about 45,196 (330)

Transient behavior of wind towers grounding systems under lightning strikes [PDF]

, 2015
Wind turbines, because of their height and localization, are frequently subject to direct lightning strikes. Thus, the investigation on the performance of their grounding system is of paramount interest for the prediction of the potential threats either ...
ARANEO, Rodolfo, CELOZZI, Salvatore
core   +1 more source

Fault line selection method for coal mine power grid based on RCMDE and KFCM

Gong-kuang zidonghua, 2022
It is difficult to accurately select the fault line when the single-phase ground fault occurs in the coal mine power grid with the widely used resonant grounding system.
HAN Guoguo, SHI Xiaojun, WANG Hui, CHENG Weijian, MU Yanxiang   +4 more
doaj   +1 more source

New Modulation Technique to Mitigate Common Mode Voltage Effects in Star-Connected Five-Phase AC Drives [PDF]

, 2020
Star-connected multiphase AC drives are being considered for electromovility applications such as electromechanical actuators (EMA), where high power density and fault tolerance is demanded.
Fernandez, Markel, Ibarra, Edorta, Kortabarria, Iñigo, Martin, Jose Luis, Robles, Endika, Sierra-Gonzalez, Andres   +5 more
core   +2 more sources

Application of multiple resistive superconducting fault-current limiters for fast fault detection in highly interconnected distribution systems [PDF]

, 2013
Superconducting fault-current limiters (SFCLs) offer several benefits for electrical distribution systems, especially with increasing distributed generation and the requirements for better network reliability and efficiency.
Blair, Steven Macpherson, Booth, Campbell, Bright, C.G., Burt, Graeme   +3 more
core   +1 more source

Analysis of fault current and overvoltage at the neutral point of ±800 kV High-Voltage DC converter transformer

Energy Reports, 2022
In order to enhance the security of ±800 kV High-Voltage DC (HVDC) system, it is needed to consider and analyze the grounding mode of the neutral point of converter transformer.
Jiaqing Fu, Yang Han, Ping Yang, Congling Wang, Amr S. Zalhaf   +4 more
doaj   +1 more source

Grounding System Adequacy of HV/MV Substations in Areas With Reduced Accessibility [PDF]

, 2015
The adequacy of grounding systems has to be verified periodically in the operational time. With urban development and buildings growth adjacent to power systems as HV/MV substations, it is very rare to have area around with sufficient accessibility for ...
Farber, Alexander, Katz, Boris, MARTIRANO, Luigi, PARISE, Giuseppe, PARISE, LUIGI   +4 more
core   +1 more source

Refined Diagnosis Method for Disconnected High-Resistance Grounding Faults in Medium-Voltage Distribution Lines

Zhongguo dianli
Multiple voltage drops or abnormal currents may occur in the power system, resulting in significant deformation and fluctuation of fault signal characteristics related to the medium voltage DC distribution network, exceeding the normal fluctuation range,
Peng ZHENG, Pengcheng HAN, Guodong WANG, Ying LOU   +3 more
doaj   +1 more source

Detection of Irregular Sheath Current Distribution for Diagnosis of Faults in Grounding Systems of Cross-Bonded Cables

IEEE Access, 2023
Sheath currents in high voltage cable circuits have proven to be one of the most convenient indicators for assessing cable health. The sheath currents are regularly distributed with fluctuation in a certain range under normal conditions, while the ...
Gen Li, Jie Chen, Hongze Li, Libin Hu, Wenjun Zhou, Chengke Zhou   +5 more
doaj   +1 more source

Fault Handling and Localization Strategy Based on Waveform Characteristics Recognition with Coordination of Peterson Coil and Resistance Grounding Method

Energies
To address challenges in locating high-impedance grounding faults (HIGFs) and isolating fault areas in resonant grounding systems, this paper proposes a novel fault identification method based on coordinating a Peterson coil and a resistance grounding ...
Zhengyang Li, Yijia Cao, Chun Chen, Yansha Li, Jinglu Li   +4 more
doaj   +1 more source

A fault line selection method of small current grounding system based on wavelet packet and Bayes theory

Gong-kuang zidonghua, 2014
In view of problems of complex fault situation and unobvious characteristics of fault signal of fault line selection method of existing small current grounding system, a fault line selection method of small current grounding system based on wavelet ...
WANG Xiaowei, GAO Jie, WEI Xiangxiang, HOU Yaxiao   +3 more
doaj   +1 more source