Results 81 to 90 of about 2,074 (217)

Investigation of Partial Discharge in Solid Dielectric under DC Voltage

, 2014
A partial discharge, or PD, is defined as an electrical discharge that is localized within only a part of the insulation between two separated conductors. Recent research on PD mainly focuses on the study of PD characteristics under AC voltage.
Chen, G, He, M, Lewin, P L, Tian, J
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Application of Sensors and Digitalization Based on IEC 61850 in Medium Voltage Networks and Switchgears [PDF]

, 2016
Vzduchem izolované vysokonapěťové rozváděče jsou nedílnou součástí energetického distribučního řetězce a to jak v průmyslovém, tak ve veřejném sektoru. Hlavní funkcí rozváděče je ochrana pracovního personálu, rozpojování/odpojování a spínání, izolování ...
Štefanka, Martin
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A review of advanced acoustic‐chemical‐optical partial discharge monitoring techniques for ultra‐high‐voltage gas‐insulated equipment

High Voltage, Volume 10, Issue 4, Page 787-806, August 2025.
Abstract Partial discharge (PD) detection is considered one of the most crucial and effective methods for identifying defects in electrical equipment. Consequently, investigating advanced and efficient PD monitoring techniques is essential for the development of gas‐insulated equipment (GIE) and the construction of ultra‐high‐voltage (UHV) networks ...
Xianhao Fan, Weiqi Qin, Rui Qiu, Yiming Zang, Wu Lu, Yin Zhang, Ruiying Chen, Fangwei Liang, Guangyu Sun, Hanhua Luo, Tiejun Ma, Chuanyang Li, Jun Hu, Weidong Liu, Giovanni Mazzanti, Jinliang He   +15 more
wiley   +1 more source

Separation of sources in radiofrequency measurements of partial discharges using time-power ratios maps [PDF]

, 2015
Partial discharges measurement is one of the most useful tools for condition monitoring of high-voltage (HV) equipment. These phenomena can be measured on-line with antennas provided that the signal to noise ratio is improved by reducing common ...
Albarracín Sánchez, Ricardo, Ardila Rey, Jorge Alfredo, Martínez Tarifa, Juan Manuel, Robles Muñoz, Guillermo   +3 more
core   +3 more sources

Gas‐insulated switchgear partial discharge classification method based on deep transfer learning using experimental and field data

High Voltage, Volume 10, Issue 4, Page 845-855, August 2025.
Abstract Gas‐insulated switchgear (GIS) plays a critical role in ensuring the reliability of power systems, but partial discharge (PD) is a primary cause of failures within GIS equipment. Traditional PD diagnostic methods rely heavily on laboratory data, which differ significantly from that under the complex conditions of field data, leading to a ...
Xutao Han, Haotian Wang, Jie Cui, Yang Zhou, Tianyi Shi, Xuanrui Zhang, Junhao Li   +6 more
wiley   +1 more source

Construction of abatement cost curves: The case of F-gases [PDF]

Most of scientific research on Greenhouse Gases (GHG) focuses on CO2 emissions. But non-CO2 gases (mainly F-gases in the form of HFCs, PFCs, and SF6) are more potent at trapping heat within the atmosphere. Currently, F-gases constitute a small proportion
Halkos, George
core   +1 more source

Guest Editorial: Advanced Detection Technology for Partial Discharge in Gas Insulated Equipment

IET Science, Measurement &Technology, Volume 20, Issue 1, January/December 2026.
Li Simeng, Han Xutao, Guo Ruochen
wiley   +1 more source

Moisture monitoring technology for GIS using dual-cone microfibers

Zhejiang dianli
An increase in moisture content within GIS （gas insulated switchgear） can compromise its insulation integrity. To monitor insulation gas humidity inside GIS， a humidity sensor using dual-cone microfibers is developed.
SHAO Xianjun, CHEN Xiaoxin, JIANG Jiongting, WANG Yukun, JI Junting, DU Houxian, MA Guoming   +6 more
doaj   +1 more source

Influence of fluorination time on surface flashover of epoxy in insulating gas [PDF]

, 2015
The accumulation of charges on polymeric insulation under high voltage DC stress is a major concern in the transmission system as its formation distorts the local electric field and has an adverse impact on the electrical performance.
Chen, G., Du, B.X., Mohamad, A.
core   +1 more source

Individual Professional Practice in the Company [PDF]

, 2018
Tato bakalářská práce obsahuje popis odborné praxe absolvované u firmy ABB s. r. o., OPC Ostrava. V této práci je uvedené odborné zaměření pobočky společnosti v Ostravě. Dále je zde popis mé pracovní pozice a náplň práce po dobu praxe.
Vávra, Lukáš
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