Results 91 to 100 of about 2,074 (217)

Partial discharge detection using low cost RTL-SDR model for wideband spectrum sensing [PDF]

, 2016
Partial discharge (PD) is one of the predominant factors to be controlled to ensure reliability and undisrupted functions of power generators, motors, Gas Insulated Switchgear (GIS) and grid connected power distribution equipment, especially in the ...
Atkinson, D. S. W., Barlee, K. W., Gavrilovska, L., Glover, Ian, Jaber, A., Khan, U., Lazaridis, Pavlos, Mather, Peter, Mihovska, A., Mohamad, Hamd, Saeed, Bakhtiar I., Upton, D., Vieira, M. F. Q., Zhang, Y.   +13 more
core   +3 more sources

Emerging Field Grading Spacer Magnetron Sputtered with a CCTO Layer for DC GIL/GIS

CSEE Journal of Power and Energy Systems
Insulation failures of epoxy spacers applied in gas insulated transmission line/switchgear (GIL/GIS) often occur, primarily due to electric field distortion.
Jin Li, Yufan Wang, Mi Xiao, Hucheng Liang, Hang Yao, Boxue Du   +5 more
doaj   +1 more source

A New Switching Impulse Generator Based on Transformer Boosting and Insulated Gate Bipolar Transistor Trigger Control [PDF]

, 2016
To make the switching impulse (SI) generator more compact, portable and feasible in field tests, a new approach based on transformer boosting was developed.
Albarracín Sánchez, Ricardo, Dong, Ming, Ren, Ming, Ye, Rixin, Zhang, Chongxing   +4 more
core   +3 more sources

Detection of trace CF4 in C4F7N‐insulated gas‐insulated metal‐enclosed switchgear: Cascading specific chemical reactions with photoacoustic spectroscopy

High Voltage
CF4 is a major decomposition product of the insulating gas in C4F7N‐insulated gas‐insulated metal‐enclosed switchgear (GIS) during partial discharge or overheating faults.
Zhicheng Wu, Jiahao Du, Zehao Zhang, Xiang Li, Shengjin Wang, Xiaoang Li, Qiaogen Zhang   +6 more
doaj   +1 more source

Effect of AC Pre-Charging of Epoxy Insulator on Flashover Properties in Eco-Friendly Binary Gas Mixtures

Energies
Metal particles and surface charge accumulation are considered the key factors that could trigger unexpected flashovers of insulators equipped in gas-insulated switchgear (GIS).
Jian Guan, Guohui Han, Qifeng Shang, Xiaohu Qi, Zhiying Wang, Yu Gao   +5 more
doaj   +1 more source

GIS内部の部分放電による電磁波検出用のアンテナに関する研究 [PDF]

, 2016
電気通信大学200
中本 藤之
core   +1 more source

Compositional modelling of partial discharge pulse spectral characteristics [PDF]

, 2013
Partial discharge (PD) monitoring is an established method for insulation health monitoring in high voltage plant. A number of different approaches to PD defect diagnosis have been developed to extract defect-specific information from PD pulse data in ...
Baker, Peter, Judd, Martin, Stephen, Bruce   +2 more
core   +1 more source

Nanocrystalline based Mitigation Technique for Very Fast Transient over Voltages in Gas Insulated Substations [PDF]

, 2021
: in gas insulated substations, issue of very fast transient over voltages is very familiar problem because of its effects on live ultra-high voltage equipment.
et. al., R.Durga Rao,
core   +1 more source

Mechanical Wear Characteristics of 170 kV Gas-Insulated Switchgear Circuit-Breaker Contacts Before Arc Initiation: An Accelerated Lifetime Test Approach

IEEE Access
This study investigates the mechanical wear characteristics of 170 kV gas-insulated switchgear (GIS) circuit breaker contacts by conducting accelerated life testing.
Jong-Geon Lee, Jae-Hong Koo
doaj   +1 more source

An Initial Topology of Multi-terminal HVDC Transmission System in Europe:A Case Study of the North-Sea Region [PDF]

, 2016
In this paper, technical challenges for realizing offshore multi-terminal HVDC (MTDC) transmission system in Europe is evaluated. An offshore MTDC topology is projected by interconnecting point-to-point HVDC links with the same voltage level and ...
Bak, Claus Leth, Bregnhøj, Tom Chresten, Irnawan, Roni, Silva, Filipe Miguel Faria da   +3 more
core   +2 more sources