Results 181 to 190 of about 1,999 (210)

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   +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

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

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

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   +1 more source

EMC philosophy applied to design the grounding systems for gas insulation switchgear (GIS) indoor substation

2015 IEEE 15th International Conference on Environment and Electrical Engineering (EEEIC), 2015
This paper presents the EMC (Electromagnetic Compatibility) philosophy applied to design the grounding systems of GIS Insulated Substation - GIS indoor substation. The grounding systems are characterized by the following subsystems: Main Grounding grid (60 Hz Grounding System), Equipotential Grounding grid (HF Grounding system) and Lightning Grounding ...
Marcos Tello, Guilherme A. D. Dias, Daniel S. Gazzana, Roberto C. Leborgne, Arturo S. Bretas   +4 more
openaire   +1 more source

Operation space analysis and trajectory planning of mechanical arm in narrow space for GIS (gas insulated switchgear) inspection robot

Industrial Robot: the international journal of robotics research and application, 2022
Purpose The purpose of this paper is to achieve optimal climbing control of the gas-insulated switchgear (GIS) robot, as the authors know that the GIS inspection robot is a kind of artificial intelligent mobile equipment which auxiliary or even substitute human labor drive on the inner wall of the gas-insulated metal enclosed switchgear.
Zhimin Pan, Yu Yan, Yizhou Huang, Wei Jiang, Gao Cheng Ye, Hong Jun Li   +5 more
openaire   +1 more source

Can GIS switchgear keep what it promises? Requirements towards an up to date gas insulated switchgear design and their realization

2006 China International Conference on Electricity Distribution (CICED 2006), 2006
The requirements towards an up to date gas insulated switchgear design and their realization including its security, reliability and safety is discussed. The capability of the design to provide higher safety, higher security and higher reliability is based on the manufacturer's individual design.
R. Buchenau, W. Hartmut
openaire   +1 more source

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   +1 more source