Results 1 to 10 of about 1,517 (163)

Development and Experimental Research of VFTO Measuring Sensor [PDF]

Sensors, 2022
Very fast transient overvoltage (VFTO) generated by an operating disconnector is one of the main reasons for electromagnetic disturbance in gas-insulated switchgear (GIS) substations.
Zihan Teng, Jun Zhao, Qi Wang, Haonan Lu, Jiangong Zhang   +4 more
doaj   +2 more sources

Nonlinear modeling of magnetic materials for circuit simulations [PDF]

Scientific Reports, 2023
Magnetic materials in the form of magnetic rings are widely used in power engineering products. In many cases, they operate in high frequency and in nonlinear conditions, e.g., as damping elements in electrical power substations equipped with Gas ...
Kamil Kutorasiński, Jarosław Pawłowski, Paweł Leszczyński, Marcin Szewczyk   +3 more
doaj   +2 more sources

Study for optimal design of gas insulated substations (GIS) to reduce magnetic fields

International Journal of Electrical Power and Energy Systems, 1997
Abstract Gas Insulated Substations (GIS) have received great interest in the recent years. One of the advantages of GIS over conventional substations are their compactness, which makes them a favorite for service in urban residential areas. Magnetic fields around GIS have drawn a great deal of attention recently. Studies on this issue to help predict
A.S. Farag, T.C. Cheng, L. Hu, D. Penn, J. Thompson   +4 more
exaly   +2 more sources

Transient Electromagnetic Disturbance Induced on the Ports of Intelligent Component of Electronic Instrument Transformer Due to Switching Operations in 500 kV GIS Substations

IEEE Access, 2017
Switching operations in gas-insulated switchgear (GIS) substations generate transient electromagnetic fields in the GIS pipes. These fields leak out discontinuities of the GIS and induce electromagnetic disturbance voltages on the cables and ports of ...
Heng-Tian Wu, Chong-Qing Jiao, Xiang Cui, Xiao-Fan Liu, Jian-Fei Ji   +4 more
doaj   +3 more sources

Mitigation of Transient Overvoltages Generated Due to Switching Operations and Lightning in Gas-insulated Substation (GIS) Without Extra Limiter

Iranian Journal of Electrical and Electronic Engineering, 2011
Gas-insulated substations (GIS) have different specifications in proportion to air-insulated substations. Transformer failures related to lightning and switching are often reported in the gas insulated substation (GIS).
A. Tavakoli, A. Gholami
doaj   +1 more source

The impact of Particle on FGM insulator in a single phase gas insulated busduct on electric field stress

Journal of Applied Science and Engineering, 2022
In the present day, technology, economics, and environmental sustainability have all combined to produce some very significant design problems for Gas-Insulated Substations (GIS).
A. Nagaraju, N. Ravi Shankar Reddy, R. Kiranmayi   +2 more
doaj   +1 more source

Carbon Emission Evaluation Method and Comparison Study of Transformer Substations Using Different Data Sources

Buildings, 2023
The construction of transformer substations in transmission lines is a systematic, technical, and complex project with the need for numerous materials and resources. Under the development of the green economy, the requirements for energy conservation and
Xigang Liu, Jian Zhang, Yiqi Hu, Jiao Liu, Shijun Ding, Gaowen Zhao, Yang Zhang, Jiawei Li, Zhibao Nie   +8 more
doaj   +1 more source

Investigating the Effect of Several Model Configurations on the Transient Response of Gas-Insulated Substation during Fault Events Using an Electromagnetic Field Theory Approach

Energies, 2020
Assessment of very fast transient overvoltage (VFTO) requires good knowledge of the behavior of gas-insulated substation when subjected to very high frequencies.
Muresan Alexandru, Levente Czumbil, Roberto Andolfato, Hassan Nouri, Dan Doru Micu   +4 more
doaj   +1 more source

A New Approach for Decision Support of the Selection of Construction Technology of High-Voltage Substations Based on AHP Method

IEEE Access, 2021
The process of building and modernizing the high voltage substations generate the problems concerning the determination of the optimal technological solutions, which should be friendly to the environment, meet the criteria of sustainable development and ...
Pawel Rozga, Andrzej Kraslawski, Artur Klarecki, Andrzej Romanowski, Wojciech Krysiak   +4 more
doaj   +1 more source

Partial Discharge Detection and Defect Location Method in GIS Cable Terminal

Energies, 2022
The complex structure of gas-insulated switchgear (GIS) cable terminals leads to serious electric field concentration, which is a frequent fault position of a high-voltage cable system. At present, due to the differences in the frequency bands of sensors,
Songyuan Li, Pengxian Song, Zhanpeng Wei, Xu Li, Qinghua Tang, Zhengzheng Meng, Ji Li, Songtao Liu, Yuhuai Wang, Jin Li   +9 more
doaj   +1 more source