Results 181 to 190 of about 7,327 (250)

Gas Insulated Switchgear GIS - State of the Art

2007 IEEE Power Engineering Society General Meeting, 2007
Gas insulated switchgear (GIS) is a world-wide used technology to solve the needs and requirements coming from modern power transmission and distribution systems. In this paper the development of the GIL technology is presented, design features are explained and a focus is given to the manufacturing process to show the high quality of the production of
Phil Bolin, Hermann Koch
openaire   +2 more sources

Characterization of nano-additive filled epoxy resin composites (ERC) for high voltage gas insulated switchgear (GIS) applications

International Journal of Emerging Electric Power Systems, 2021
AbstractInsulation based on epoxy resin (ER) is widely used for high voltage and high fault current rated electrical substation equipment. This paper details the formulation of epoxy based Nano-composites and influence of the Nano filler material on the electrical and thermal properties like breakdown voltage (BDV), relative permittivity, tanδand ...
Rathod Hari, Mandava Mohana Rao
openaire   +2 more sources

Ultra-High Frequency (UHF) Based Partial Discharge Measurement in Gas Insulated Switchgear (GIS)

2019 International Conference on High Voltage Engineering and Technology (ICHVET), 2019
Gas Insulated Substations (GIS) offer significant advantages over conventional Air Insulated Substations (AIS) on account of reduced space and operational efficiency. Partial discharge (PD) measurement is one of the important test in GIS to ensure its reliability during service and also to reveal defects at incipient levels. One of the methods employed
M. Mohana Rao, Mrituniav Kumar
openaire   +2 more sources

Analisis dan Efisiensi Kebutuhan Kapasitas Baterai 110 Volt DC Gas Insulated Switchgear (GIS) 150 KV Wonokromo Surabaya

JURNAL TEKNIK ELEKTRO, 2022
Penyaluran energi listrik pada Gas Insulated Switchgear (GIS) memiliki dua sumber tenaga, yaitu sumber (AC) bolak balik dan (DC) searah. Salah satu sumber DC yang memiliki peran yang sangat penting adalah baterai 110 VDC. Baterai merupakan suatu sel listrik yang terdapat dua proses elektrokimia, yaitu proses discharging dan proses charging.
Andrian Nuril Ihsan, Joko Joko, Bambang Suprianto, Tri Wrahatnolo   +3 more
openaire   +2 more sources

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   +2 more sources

Controlled Voltage Breakdown in Disconnector Contact System for VFTO Mitigation in Gas-Insulated Switchgear (GIS)

IEEE Transactions on Power Delivery, 2017
Several methods have been proposed and investigated so far on mitigation of very fast transient overvoltages (VFTO) in gas-insulated switchgear (GIS). The state-of-the-art methods are primarily based on dissipation of the energy associated with electromagnetic waves that the VFTO originate from and are composed of.
Marcin Szewczyk, Maciej Kuniewski
openaire   +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   +2 more sources

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   +2 more sources

Vibration Fault On-site Dection of Gas-insulated Switchgear (GIS) Equipment Based on Ultrasound and Ultra-high Frequency Measurement Method

2019 IEEE Sustainable Power and Energy Conference (iSPEC), 2019
At present, GIS equipment (gas insulated switchgear) is more and more popular in power system, and the detection of GIS faults is mainly aimed at discharging faults. But more and more phenomena show that mechanical faults can not be ignored. In this paper, by analyzing a case of GIS field detection based on ultrasonic and ultrahigh frequency (UHF ...
Qian Wang, Yingkai Long, Xupeng Wang, Xiping Jiang, Jian Hao, Long Li   +5 more
openaire   +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 ...
Shigemitsu Okabe
openaire   +2 more sources