Results 31 to 40 of about 2,966,124 (288)

Intelligent partial discharge sensing system for power grid equipment based on Internet of things

Diance yu yibiao
Aiming at the problem that the traditional manual inspection method and wired communication method are difficult to meet the demand for partial discharge (PD) detection of large-scale power equipment, this paper designs an intelligent partial discharge ...
FANG Zheng
doaj   +1 more source

Partial Discharge Pattern Recognition of Transformers Based on the Gray-Level Co-Occurrence Matrix of Optimal Parameters

IEEE Access, 2021
The partial discharge (PD) is the most common fault of transformers, which is the main factor affecting the stable operation of transformers. Therefore, the PD should be monitored and identified timely to improve the reliability of the transformers.
Shengya Sun, Yuanyuan Sun, Gongde Xu, Lina Zhang, Yiru Hu, Ping Liu   +5 more
doaj   +1 more source

Evaluation of Erosion Discharge Characteristics in Inclined Plane Tracking and Erosion Tests on Silicone Rubber under AC and DC Voltages

Energies, 2021
This paper investigates partial discharge (PD) characteristics that lead to the erosion of silicone rubber (SR) polymer under AC stress and DC stress of both polarities.
Valeria Pevtsov, Nathan D. Jacob, Behzad Kordi   +2 more
doaj   +1 more source

Analysis of Cavity PD Characteristics’ Sensitivity to Changes in the Supply Voltage Frequency

Energies, 2021
The supply voltage frequency effect on partial discharge (PD) phenomena has continued to draw research interest. Although most high voltage equipment operates at power frequency (50/60 Hz), testing is often done at different frequencies for various ...
Tapiwa Venge, Cuthbert Nyamupangedengu
doaj   +1 more source

Structural studies and functional engineering of NanX: an anhydro‐sialic acid transporter from Escherichia coli

FEBS Open Bio, EarlyView.
Biophysical characterisation shows that NanX, a membrane transport protein from the major facilitator superfamily (MFS), forms both monomers and dimers after purification. AlphaFold modelling and substrate docking provide information on residues likely involved in substrate recognition for NanX and another MFS member, NanT.
Michael C. Newton‐Vesty, Kelsi R. Hall, Zachary D. Tillett, Liam S. Turk, James S. Davies, Michael J. Currie, Hamish G. Brown, Sepideh Valimehr, Peter D. Mace, Andrew E. Whitten, Santosh Panjikar, Eric Hanssen, Rachel A. North, Renwick C.J. Dobson   +13 more
wiley   +1 more source

Feature Selection for Partial Discharge Severity Assessment in Gas-Insulated Switchgear Based on Minimum Redundancy and Maximum Relevance

Energies, 2017
Scientific evaluation of partial discharge (PD) severity in gas-insulation switchgear (GIS) can assist in mastering the insulation condition of in-service GIS.
Ju Tang, Miao Jin, Fuping Zeng, Siyuan Zhou, Xiaoxing Zhang, Yi Yang, Yan Ma   +6 more
doaj   +1 more source

Natural Frequencies of Levodopa‐Induced Dyskinesia in Parkinson's Disease

Annals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Objectives Abnormal involuntary movements, known as dyskinesias, are common complications of levodopa treatment in patients with Parkinson's disease and can significantly impair quality of life. The underlying pathophysiology remains unclear, and current therapeutic options are limited.
Ioannis U. Isaias, Federica Avantaggiato, Gianni Pezzoli, Andrea Canessa   +3 more
wiley   +1 more source

Effect of SF6 pressure on the sensitivity of partial discharge detection of typical defects in GIS

电力工程技术, 2023
The gas pressure of gas insulated switchgear (GIS) is the key factor affecting the sensitivity of partial discharge (PD) detection. In this paper, four defect models, tip, suspension, void, surface, are constructed on the PD experimental platform.
KONG Fanjun, MA Jingtan, CHEN Minhao, ZHANG Chaohai   +3 more
doaj   +1 more source

Radiometric Wireless Sensor Network Monitoring of Partial Discharge Sources in Electrical Substations [PDF]

, 2015
A wireless sensor network (WSN) with the potential to monitor and locate partial discharge (PD) in high-voltage electricity substations using only received signal strength (RSS) is proposed.
Jaber, Adel, Tachtatzis, Christos, Atkinson, Robert, Pavlos Lazaridis, Ahmed, Hamd, Vieira, Maria Fatima Queiroz, Vieira, Maria de Fatima Queiroz, Alexandre Mopty, David Upton, Yong Zhang, Peter Mather, Judd, Martin, Adel Jaber, Lazaridis, Pavlos, Bahghtar Saeed, Mopty, Alexandre, Upton, David, Glover, Ian, Hamd Ahmed, Saeed, Bahghtar, Saeed, Bakhtiar I., Christos Tachtatzis, Ian Glover, Martin Judd, Mather, Peter, Robert Atkinson, Zhang, Yong, Maria de Fatima Queiroz Vieira   +27 more
core   +1 more source

Generalized Dystonia With Cervical Predominance in a Patient With a De Novo TCF20 Variant

Annals of Clinical and Translational Neurology, EarlyView.
ABSTRACT TCF20 has been implicated in developmental delay and intellectual disability, with dystonia reported less frequently. We describe a woman in her early twenties with childhood‐onset learning difficulties, progressive dysarthria, tremor, and generalized dystonia with marked cervical predominance, associated with a de novo TCF20 frameshift ...
Melisa Kilic, Petr Dusek, Ibrahim Kamaci, Bahar Gulmez, Gul Yalcin Cakmakli, Ersin Tan, Sibel Ugur Iseri, Zuhal Yapici   +7 more
wiley   +1 more source