Results 51 to 60 of about 1,995,341 (213)

Numerical simulation on fault arc characteristics of medium voltage air medium switchgear [PDF]

AIP Advances
Based on magnetohydrodynamic theory, this paper establishes a two-dimensional axisymmetric model of a fault arc inside an enclosed medium-voltage (MV) air-insulated switchgear.
Lijun Wang, 王立军, Xinyi Liu, 刘心怡, Kexiang Huang, 黄柯翔, Tongqi Liu, 刘桐齐, Xuanrui Zhang, 张宣睿   +9 more
doaj   +1 more source

Adsorption properties of Ni cluster modified TiO2 (1 0 1) towards SF6 decomposition gases

High Voltage, 2023
Online detection of insulation defects the decomposition products of SF6 plays a key role in ensuring the safe operation of the gas‐insulated switchgear (GIS) equipment. The pristine TiO2 (1 0 1) modified by Ni cluster (1–3 Ni atoms) is used as a new gas‐
Yingang Gui, Shun Yang, Chang Ji, Xianping Chen   +3 more
doaj   +1 more source

Insulation Diagnosis of Gas-Insulated Switchgears by TEV Detection

Journal of Korean Institute of Electrical and Electronic Materials Engineers, 2019
Transient earth voltage (TEV) signals propagate on metal surfaces when partial discharge (PD) occurs due to the deterioration of insulation performance in the operation of gas-insulated switchgears (GIS). A TEV sensor has advantages of high sensitivity and convenient installation for detecting PD defects.
Jeong-bae Kong, Gyung-suk Kil, Sung-wook Kim   +2 more
openaire   +1 more source

Cone‐Type Insulator Surface Electric Field Measurement Based on Advanced Integrated Optical Electric Field Sensor

High Voltage, Volume 11, Issue 4, Page 1032-1039, August 2026.
ABSTRACT Direct and accurate measurement of insulator near‐surface electric fields in gas‐insulated equipment is critical for understanding charge accumulation and insulation failure, yet it has been technically challenging. Optical sensing technology is renowned for its high sensitivity, wide dynamic range, strong resistance to electromagnetic ...
Juntong Zong, Weiqi Qin, Zhecheng Zhang, Changhong Zhang, Weiguo Li, Chuanyang Li, Jinliang He   +6 more
wiley   +1 more source

Evaluasi kualitas gas SF6 pada Gas insulated Switchgear setelah revitalisasi studi kasus pada PT. PLN (PERSERO) GIS Simpang [PDF]

Penelitian ini bertujuan mengevaluasi efektivitas revitalisasi pada Gas Insulated Switchgear (Gas Insulated Switchgear (GIS)) Simpang milik PT. PLN (Persero) dengan fokus pada kualitas gas SF6. Selain kemurnian, parameter lain seperti kadar air (moisture
Jamal, Mario
core   +1 more source

Observing Electrical Discharge With High 3D Spatial Resolution

High Voltage, Volume 11, Issue 4, Page 899-905, August 2026.
ABSTRACT This study introduces an application of binocular stereo vision technology to achieve high‐resolution 3D visualisation of submillimeter discharge channels. The proposed method can capture the depth information of weak luminous discharges and provide 3D discharge trajectories, providing new insights into the discharge mechanism.
Zhicheng Wu, Wenshuang Zhang, Zhetao Zhang, Yizhou Jiao, Le Feng, Qiaogen Zhang   +5 more
wiley   +1 more source

Breakdown Voltage Using Bond Energy Calculation for CF3CHCl2/CO2 Mixture as Insulation Applied

JAREE (Journal on Advanced Research in Electrical Engineering), 2019
— Sulfur hexafluoride gas according to the Montreal Protocol and Kyoto protocol needs to be limited and gradually reduced because it causes global warming, the greenhouse effect and acid rain on the environment.
Tedy Juliandhy
doaj  

Recent Advances in PVA‐Based Humidity Sensors: Materials Design and Future Prospects

Advanced Sustainable Systems, Volume 10, Issue 6, June 2026.
Polyvinyl alcohol‐based humidity sensing materials, highlighting pristine PVA, polymer blends, and organic/inorganic composites for enhanced sensing performance. ABSTRACT Polyvinyl alcohol (PVA) and its derivatives have gained considerable attention for humidity‐sensing applications due to their hydrophilic nature, excellent film‐forming ability, and ...
Premkumar Sharad Bhosale, Kartik Ajit Pasalwad, Aniket Karande, Sugato Hajra, Swati Panda, Kushal Ruthvik Kaja, Mohamed A. Belal, Sourabh B. Ghode, Umesh Balaso Apugade, Gobind Das, Hoe Joon Kim, Uday Kumar Khanapuram, Tae‐Hwan Oh   +12 more
wiley   +1 more source

Diagnóstico de descargas parciais em subestações isoladas a gás SF6 utilizando redes neurais artificiais [PDF]

, 2006
Dissertação (mestrado) - Universidade Federal de Santa Catarina, Centro Tecnológico. Programa de Pós-Graduação em Engenharia ElétricaO presente trabalho de dissertação aborda o desenvolvimento de uma ferramenta computacional para o diagnóstico de ...
Paulo, Assis Rogério Gomes da Silva
core  

Study of Wireless Secondary Connections in Gas Insulated Switchgear

, 2011
The paper first discusses the feasibility of the wireless communication in GIS (Gas Insulated Switchgear) substation. The signals inside GIS according to ISA100 standard are first classified and then a scheme to transmit some of the signals by ZigBee ...
Fu Sheng Wei, Yong Xiao, Jing Feng Yang, Rui Min Chen, San Lei Dang   +4 more
core   +1 more source