Results 71 to 80 of about 30,341 (295)

An experimental proof of concept of time‐reversal single‐sensor acoustic source localisation: Application to partial discharges

High Voltage, Volume 10, Issue 2, Page 351-361, April 2025.
Abstract In this paper, for the first time, an experimental proof of concept for utilising time reversal (TR) in the acoustic regime to localise partial discharge (PD) sources was presented using a single sensor. To achieve this, an experimental setup comprising a water tank, acoustic transducers for signal transmission and reception, and 2D scanners ...
Hamidreza Karami, Zhaoyang Wang, Parsa Khorasani, Javad Zohrevand, Marcos Rubinstein, Farhad Rachidi   +5 more
wiley   +1 more source

Practical Approach to Enhance Energy Resilience in Manufacturing Facilities

Energy Science &Engineering, Volume 13, Issue 2, Page 673-686, February 2025.
Energy Efficiency Benefits Assessment of Integrating the Uninterrupted Power Supply (UPS) System into a Medium Voltage (MV) Distribution compared to a Low Voltage (LV) Distribution. MV UPS = Medium Voltage Uninterrupted Power Supply unit, LV UPS = Low Voltage Uninterrupted Power Supply unit. ABSTRACT Both developed and developing countries are affected
P. K. Ngongo, A. M. A. Almaktoof, M. T. E. Kahn   +2 more
wiley   +1 more source

Comparative studies of C4F7N‐based gas mixtures as the eco‐friendly alternative to SF6 for interrupting applications

High Voltage, Volume 10, Issue 1, Page 228-242, February 2025.
Abstract To comprehensively evaluate the feasibility of using C4F7N‐based gas mixture as arc extinguishing medium, a comparative study is performed on the variations of the multi‐physical fields, gas flow environment and decomposition characteristics of the gas mixtures.
Wen Wang, Xianglian Yan, Hao Wang, Keli Gao   +3 more
wiley   +1 more source

Comprehensive Structural Reliability Assessment When Choosing Switchgear Circuits for 35–220 kV Step-Up Substations

Energies
The basic requirements for the design of a switchgear for main 35–220 kV step-down substations are reliability and efficiency. Switchgear circuits are chosen depending on the number of supply and transit lines and transformers, the substation’s place in ...
Aleksandra V. Varganova, Aleksandr S. Irikhov, Anastasia A. Utesheva, Vadim R. Khramshin, Aleksandr S. Maklakov, Andrey A. Radionov   +5 more
doaj   +1 more source

Fault diagnosis of high‐voltage circuit breaker based on open‐set theory fusion model

IET Electric Power Applications, Volume 19, Issue 1, January/December 2025.
To effectively identify unknown faults, this paper proposes a high‐voltage circuit breaker fault diagnosis method based on an open‐set fusion model (OSFM). The results demonstrated that the OSFM method can effectively recognise previously unidentified class faults while maintaining accurate recognition of known classes. Abstract Fault diagnosis of high
Jinglong Zhou, Hongshan Zhao, Shiyu Lin, Haoming Si, Bohan Li   +4 more
wiley   +1 more source

State‐of‐the‐art of cybersecurity in the power system: Simulation, detection, mitigation, and research gaps

IET Generation, Transmission &Distribution, Volume 19, Issue 1, January/December 2025.
This paper presents a review of state‐of‐the‐art of cybersecurity in the power system, reviewing available simulation tools for studying the cybersecurity of the power system, classifying vulnerable components of the power system to cyberattacks, and summarizing the adverse effects of a successful cyberattack on each component in the power system ...
Milad Beikbabaei, Ali Mehrizi‐Sani, Chen‐Ching Liu   +2 more
wiley   +1 more source

Design of a New Built-in UHF Multi-Frequency Antenna Sensor for Partial Discharge Detection in High-Voltage Switchgears

Sensors, 2016
In this study a new built-in ultrahigh frequency (UHF) antenna sensor was designed and applied in a high-voltage switchgear for partial discharge (PD) detection.
Xiaoxing Zhang, Zheng Cheng, Yingang Gui
doaj   +1 more source

Optical Detection of Partial Discharges in GIS Based on Microstructure Light Guides

IET Generation, Transmission &Distribution, Volume 19, Issue 1, January/December 2025.
To improve the detection performance of optical partial discharge (PD) sensors, a novel optical PD sensor based on the light guide rod (LGR) is proposed. The characteristic parameters of typical PD signals collected by LGR and fluorescent fibre are compared and analysed.
Ze Li, Yiming Zang, Chenglin Wang, Yanshu Tang, Xiuchen Jiang   +4 more
wiley   +1 more source

A new coupling solution for G3-PLC employment in MV smart grids [PDF]

, 2019
This paper proposes a new coupling solution for transmitting narrowband multicarrier power line communication (PLC) signals over medium voltage (MV) power lines.
Artale G., Cataliotti A., Cosentino V., Di Cara D., Fiorelli R., Guaiana S., Panzavecchia N., Tine G.   +7 more
core   +1 more source

Reliability growth prediction of mine-used low-voltage switchgear

Gong-kuang zidonghua, 2015
A mine low-voltage switchgear was taken as object to study its reliability growth process in the commissioning phase in underground coal mine. It was clarified that number of mine-used low-voltage switchgear failure occurrence accompanied with repair ...
XIA Haoxuan, LIU Zixu, WANG Jingqin, YANG Chunwen, WANG Li   +4 more
doaj   +1 more source