Results 21 to 30 of about 17,400,706 (180)

Ferromagnetic resonance over-voltage identification method based on Gram angle field

Energy Reports, 2022
In neutral point non-grounding systems with 35 kV and below, ferromagnetic resonance over-voltage faults often occurs, which brings safety hazards to power systems.
Qiong Li, Yang Zou, Guo Hua Long, Wenbao Wu   +3 more
doaj   +1 more source

Electrical safety of resonant grounding

, 2019
The resonant grounding is one of the possible methods of system neutral grounding for the medium-voltage distribution. IEEE standards do define this grounding configuration, but important advantages and drawbacks of the resonant grounding might not be ...
Mitolo M., Gaetano Zizzo, Zizzo G., Massimo Mitolo, Tartaglia M., Michele Tartaglia   +5 more
core   +1 more source

Improved transient earth fault clearing on solid and resistance earthed MV netwworks [PDF]

, 2011
Includes bibliographical references.The aim of this thesis is to endeavour to develop, through a literature study, a method or methods whereby transient earth faults on neutral earthed MV networks may be cleared without customer supply interruptions ...
Scholtz, J P
core   +1 more source

Faulty Feeder Identification and Fault Area Localization in Resonant Grounding System Based on Wavelet Packet and Bayesian Classifier

Journal of Modern Power Systems and Clean Energy, 2020
Accurate fault area localization is a challenging problem in resonant grounding systems (RGSs). Accordingly, this paper proposes a novel two-stage localization method for single-phase earth faults in RGSs.
Jingwen Chen, Enliang Chu, Yingchun Li, Baoji Yun, Hongshe Dang, Yali Yang   +5 more
doaj   +1 more source

Optimisation Method for Pre-set Arc Suppression Coil Damping Resistors Enhancing Ground Fault Detection [PDF]

Zhengzhou Daxue xuebao. Gongxue ban
As a key component of pre-set arc suppression coil, the damping resistor is currently configured primarily to suppress series resonance overvoltage and prevent protection maloperation during normal operation.
ZHANG Jianbin, WANG Juncheng, DONG Xuan, LI Jingli, ZHANG Huijie   +4 more
doaj   +1 more source

Fault Line Selection Method Based on Transfer Learning Depthwise Separable Convolutional Neural Network

Journal of Electrical and Computer Engineering, 2021
With the continuous development of artificial intelligence technology, the value of massive power data has been widely considered. Aiming at the problem of single-phase-to-ground fault line selection in resonant grounding system, a fault line selection ...
Haixia Zhang, Wenao Cheng
doaj   +1 more source

Fault line selection method for earth faults occurred in different phases of two feeders connected to the same bus based on the ratio of zero-sequence admittance amplitude

电力工程技术
When the earth faults occur in different phases of two feeders connected to the same bus in the resonant grounding system, the conventional fault line selection devices are inaccurate.
HAN Jie, LIU Zhiyong, ZHOU Qilin, TONG Rui, LING Yuchang, LIANG Guokai   +5 more
doaj   +1 more source

Microbiome‐blood–brain barrier interactions in aging — mechanisms and therapeutic potential

FEBS Letters, EarlyView.
Aging reshapes the gut microbiome (↓SCFA‐producing commensals; ↑pro‐inflammatory outputs), shifting circulating metabolites (↓SCFAs; ↑LPS, ↑TMAO, ↑PAA) that act at the BBB to increase nonspecific transcytosis, alter transport, and promote astrocyte reactivity, heightening brain vulnerability.
Daniel Cuervo‐Zanatta, Hari Baskar Balasubramanian, Amir Pasokh, Marietta Zille   +3 more
wiley   +1 more source

Emerging experimental and computational methods for studying redox‐regulated structural transitions

FEBS Letters, EarlyView.
Redox reactions can reshape proteins and alter how they behave in cells, with important consequences for health and disease. This review explores emerging experimental and computational approaches for discovering these redox‐sensitive protein switches, revealing their structural effects, and predicting their behavior, opening new opportunities to ...
Tasneem Rass, Dana Reichmann, Gábor Erdős   +2 more
wiley   +1 more source

Structural and biochemical analysis of a B12 superbinder

FEBS Letters, EarlyView.
BtuG proteins are vitamin B12 scavengers in Bacteroides thetaiotaomicron, a dominant human gut bacterium. We present crystal structures of three BtuG homologs bound to cobalamin and its precursor cobinamide, revealing picomolar binding affinities, among the highest known for any natural protein.
Jose M. Martinez Felices, Jacob J. Whittaker, Dirk J. Slotboom, Albert Guskov   +3 more
wiley   +1 more source