Results 181 to 190 of about 2,074 (217)

Study of the Grounding Behavior of Gas-Insulated Switchgear (GIS-Type Substations) Submitted to Lightning

2023 IEEE International Conference on Environment and Electrical Engineering and 2023 IEEE Industrial and Commercial Power Systems Europe (EEEIC / I&CPS Europe), 2023
Diego Mizette Olíz, Marcos Tello, Daniel S Gazzana   +2 more
exaly   +2 more sources

Insulation properties and degradation mechanism of insulating spacers in gas insulated switchgear (GIS) for repeated/long voltage application

IEEE Transactions on Dielectrics and Electrical Insulation, 2007
Gas insulated switchgear (GIS) has been increasingly being used in recent years and high reliability and rational insulation design are required. This research provided V-N characteristics (the dielectric breakdown voltage versus number of repetitions characteristics) regarding the internal insulation and creeping insulation of the epoxy spacer, which ...
exaly   +2 more sources

Online Partial Discharge Monitoring In Gas Insulated Switchgear (GIS) and Air Insulated Switchgear (AIS)

2024 14th International Conference on System Engineering and Technology (ICSET)
N H Nik Ali, Mohd Hezri Fazalul Rahiman
exaly   +2 more sources

Advanced Metal Oxide Surge Arrester for Gas Insulated Switchgear (GIS)

IEEE Power Engineering Review, 1984
SF6 gas has outstanding dielectric strength and heat transfer property. This suggests that zinc oxide (ZnO) elements whose value of E in E-J characteristic is higher than the value of the elements used in a porcelain type arrester is suitable to metal enclosed metal oxide surge arresters (MOA) for gas insulated switchgears (GIS). Several kinds of newly
M. Imataki, K. Ujita, Y. Fujiwara, S. Ishibe, T. Nitta   +4 more
openaire   +1 more source

History of Gas-insulated Switchgear in Japan on Transition of Technological Development and Practical Application—The Third Report: Expanded Application of UHV and HVDC Technologies to GIS—

IEEJ Transactions on Fundamentals and Materials, 2019
Kenji Sasamori, Hiroyuki Hama
exaly   +2 more sources

Highly integrated and compact gas-insulated switchgear (GIS) for 4000 A and 63 kA

2003 IEEE PES Transmission and Distribution Conference and Exposition (IEEE Cat. No.03CH37495), 2004
An up-rated gas-insulated switchgear (GIS)- product in the voltage range up to 170 kV with 4000 A continuous current and 63 kA short circuit current is now available, which in these ratings is the most compact design in this market segment. This recently developed GIS is based on the existing GIS type ELK-0 (which is established in the market since ...
T. Betz, T. Braun, H. Peters, L. Heinemann, V. Rees   +4 more
openaire   +1 more source

Two planar antennas for detection of partial discharge in gas-insulated switchgear (GIS)

2015 IEEE International Conference on Communication, Networks and Satellite (COMNESTAT), 2015
The detection of partial discharge in GIS plays a pivotal role in preventing and mitigating severe operational failure and damage in insulation elements. Partial discharge progressively degrades the insulating medium and, as a result electrical breakdown can occur in GIS.
Diego Lozano-Claros, Eddie Custovic, Darrell Elton   +2 more
openaire   +1 more source

Coating and barrier within medium voltage GIS (gas insulated switchgear)

IET Conference Publications, 2009
The main purpose of this paper is to investigate ca ses with atmospheric air and hybrid insulation, where solid insulation is used in addition to air. For solid insulation, convenient polymeric materials are used. With hybri d insulation it is typically two options: Coating or barriers.
T. Oyvang, S.T. Hagen
openaire   +1 more source

Emerging Technologies in High Voltage Gas Insulated Switchgear-Clean Air GIS and NCIT

2019 International Conference on High Voltage Engineering and Technology (ICHVET), 2019
Presently, the Gas insulated switchgears (GIS) are used extensively in the power transmission and distribution systems worldwide. The compactness and durability of Gas insulated switchgear is the key reason for their popularity. The compactness is mainly because of presence of SF6 gas, having the best characteristics as an insulating and quenching ...
Dharababu Thummapal, Suyog Kothari, Madakumar Thirumalai   +2 more
openaire   +1 more source

A surface resistivity probe for assessing solid insulators in GIS (gas insulated switchgear)

IEEE International Symposium on Electrical Insulation, 2002
The changes in surface characteristics after a spacer has been exposed to a large amount of SF/sub 6/ decomposition products for a short period of time, which is similar to conditions during fault repair, are described. The design and construction of a prototype surface electrical resistivity probe which can be used to assess the reusability of ...
J.M. Braun, F.Y. Chu, R. Seethapathy
openaire   +1 more source