Results 191 to 200 of about 1,373 (216)

Optimization of a cathode configuration in gas insulated switchgear with a permittivity graded insulator

2012 IEEE International Power Modulator and High Voltage Conference (IPMHVC), 2012
An application of a functionally graded material (FGM) to the solid spacer in gas insulated switchgears (GISs) can reduce the electric field intensity. Especially, the location of the high electric field concentration moves from the anode to the interface between the spacer and the gas, when the FGM spacer is used.
Chi-Wuk Gu, Jae-Ho Rhee, Heung-Jin Ju, Kwang-Cheol Ko   +3 more
openaire   +1 more source

Contact‐failure phenomena and their development in gas‐insulated switchgear

Electrical Engineering in Japan, 1993
AbstractTo explain contact failure phenomena and their development in the gas‐insulated switchgear (GIS). tests were conducted by simulating abnormal current‐carrying conditions using an actual 300‐kV, 2000‐A GIS.This paper describes the process observed. ranging from contact failures to ground faults, deteriorative phenomena and some detection methods
Yoku Mukaiyama, Isao Takagi, Kunikazu Izumi, Terukazu Sekiguchi, Akio Kobayashi, Toshio Sumikawa   +5 more
openaire   +1 more source

Capacitive sensor for the measurement of transients in gas-insulated switchgears

2009 IEEE Conference on Electrical Insulation and Dielectric Phenomena, 2009
A capacitive sensor has been developed for the measurements of very fast transient over-voltages (VFTO) in GIS. Step response measurement was performed on the sensor. It is shown from the test that the settling time is less than 20 ns and the response time is less than 2ns, suitable to the IEC1321-1.
Hao Wu, Chengrong Li, Hairui Xu, Guoming Ma, Jiangtao Quan, Jian Jiang   +5 more
openaire   +1 more source

High voltage gas insulated switchgear: an overview

IEE Colloquium on GIS (Gas-Insulated Switchgear) at Transmission and Distribution Voltages, 1995
In 1967 the first gas insulated metal-enclosed switchgear went into service in the German 110 kV network. Today GIS technology is successfully used for voltages up to 800 kV. GIS is an attractive alternative to conventional air insulated substations (AIS) because of the increased availability, reliability and the reduced life cycle costs.
openaire   +1 more source

F-Gas Free Switchgear - A real Alternative to SF6 Gas Insulated Switchgear

2023 IEEE Power & Energy Society General Meeting (PESGM), 2023
Karthik Reddy Venna, Corral Lopez Guillermo Luis, Florian Wolfrum   +2 more
openaire   +1 more source

Development of 300/245kV, 80kA Gas Insulated Switchgear

2008 International Conference on High Voltage Engineering and Application, 2008
This paper describes the results of the development and validation of the 300/245 kV, 80 kA GIS based on conventional 300/245 kV, 63 kA GIS and conventional free standing GCB, and describes the design approach of intake puffer type ES. The performance of this GIS satisfied all type tests and all special specification tests.
Shinichiro Nakauchi, Yoshinori Shimizu, Masanori Osumi, Hitoshi Sadakuni   +3 more
openaire   +1 more source

The Study on a New Method for Detecting Corona Discharge in Gas Insulated Switchgear

IEEE Transactions on Instrumentation and Measurement, 2022
Binxian Lu, Weixiao Huang, Jun Xiong
exaly  

Mechanical defects diagnosis for gas insulated switchgear using acoustic imaging approach

Applied Acoustics, 2021
Qing Xiong, Xianyong Feng, Lingyu Zhu
exaly  

Novel metric-based meta-learning model for few-shot diagnosis of partial discharge in a gas-insulated switchgear

ISA Transactions, 2023
Yanxin Wang, Zhenkang Qi, Yingsan Geng   +2 more
exaly  

Condition Assessment of Gas Insulated Switchgear Using Health Index and Conditional Factor Method

Energies, 2022
Nattapon Panmala, Thanapong Suwanasri
exaly