Results 1 to 10 of about 65 (63)

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

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

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   +1 more source

Breakdown Mechanism of Different Sulphur Hexafluoride Gas Mixtures

Advances in Materials Science and Engineering, 2018
Sulphur hexafluoride (SF6) gas and SF6 gas mixtures are widely used in gas-insulated systems (GIS) because they have good dielectric and thermal properties.
E. Onal
doaj   +1 more source

Mitigation of field stress with metal inserts for cone type spacer in a gas insulated busduct under delamination

Engineering Science and Technology, an International Journal, 2018
Increased power demand and energy density in cities resulted in the establishment of Gas insulated systems (GIS) as a substitute for the conventional air-insulated substations.
Jagadeesh Adari, Venkata Siva Krishna Rao Gadi, Venkata Nagesh Kumar Gundavarapu   +2 more
doaj   +1 more source