Results 271 to 280 of about 12,035,860 (334)
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IEEE International Conference on Power and Renewable Energy, 2021
The charging station is a place where electric vehicles are charged, and its construction and maintenance costs are very high, which makes the safety of the charging station particularly important.
Xinyi Jin +5 more
semanticscholar +1 more source
The charging station is a place where electric vehicles are charged, and its construction and maintenance costs are very high, which makes the safety of the charging station particularly important.
Xinyi Jin +5 more
semanticscholar +1 more source
Simulation and Measurement Analysis of Transient Ground Potential Rise in GIS of 110kV Substation
IEEE International Conference Power and Energy Systems, 2021VFTO will be generated during the operation of GIS disconnectors, circuit breakers and other switchgear. This fast transient process will often cause the circulating current of GIS shell and the transient potential rise of GIS shell to ground.
Qing-Ping Zhang +5 more
semanticscholar +1 more source
A Practical Ground Potential Rise Prediction Technique for Power Stations
IEEE Transactions on Power Apparatus and Systems, 1980The determination of fault-produced Ground Potential Rise (GPR) at a power station has historically posed a number of practical and technical problems. This paper presents a GPR prediction technique which overcomes these problems without requiring a staged fault test.
F. Zupa, J. Laidig
semanticscholar +2 more sources
Ground potential rise of multi-grounded neutral and shield wires in joint systems
Electric Power Systems Research, 2010Power line faults create the ground potential rise (GPR) on both the neutral and shield conductors when the transmission lines (TL) and distribution lines (DL) are built on the same structures. The durations and magnitudes of resulting GPRs are unique for DL faults and TL faults because the corresponding fault currents are significantly different in ...
Janak Acharya
exaly +2 more sources
Transient Ground Potential Rise in Gas Insulated Substations - Experimental Studies
IEEE Transactions on Power Apparatus and Systems, 1982The very rapid dielectric breakdown of SF6 (eg, during the operation of disconnect switches in gas-insulated substations) generates steep-fronted travelling waves which couple to the exterior enclosure surface at the air/SF6 bushings and cause transient ground potential rise.
N. Fujimoto +3 more
semanticscholar +2 more sources
The Impact of Multilayer Ground and Buried Conductors on Ground Potential Rising
Civil-Comp Proceedings, 2016The electromagnetic modelling of phase-to-ground short-circuits in a railway environment is essential to optimize the protections against ground potential rising. Two particularly important points are defined: a) the determination of the ground structure in terms of its electric resistivity; b) the introduction in the model of a buried conductor in the
Papaiz Garbini, Gabriel +4 more
openaire +2 more sources
IEEE International Conference on High Voltage Engineering and Application, 2020
During the switching operation of GIS Substation, the Transient Enclosure Voltage (TEV)and the Transient Ground Potential Rise (TGPR)will occur, which will have a negative impact on the safety of substation.
Wei Shen +5 more
semanticscholar +1 more source
During the switching operation of GIS Substation, the Transient Enclosure Voltage (TEV)and the Transient Ground Potential Rise (TGPR)will occur, which will have a negative impact on the safety of substation.
Wei Shen +5 more
semanticscholar +1 more source
IEEE Transactions on Power Apparatus and Systems, 1982
Transient ground potential rise, a phenomenon of 10-100 kV potentials with up to 10 ?s duration on the grounded enclosures of gas-insulated substations (GIS), may cause concern for personnel safety and problems for protection and control circuitry.
E. Dick, N. Fujimoto, G. Ford, S. Harvey
semanticscholar +3 more sources
Transient ground potential rise, a phenomenon of 10-100 kV potentials with up to 10 ?s duration on the grounded enclosures of gas-insulated substations (GIS), may cause concern for personnel safety and problems for protection and control circuitry.
E. Dick, N. Fujimoto, G. Ford, S. Harvey
semanticscholar +3 more sources
Distribution of Potential Rise as a Function of Shape of Grounding Electrodes
Journal of the Korean Institute of Illuminating and Electrical Installation Engineers, 2007In order to analyze the potential rise of grounding systems installed in buildings, a hemispherical grounding simulation system was studied. Potential rise was measured and analyzed regarding the shape and distance of the grounding electrodes by using this system.
Hyoung-Jun Gil +2 more
openaire +1 more source
Journal of the Korean Institute of Illuminating and Electrical Installation Engineers, 2011
The most important object of grounding systems is to protect human being from electric shock. Touch and step voltages are measured to evaluate the performances of grounding systems. Dangerous voltages have been largely studied by the power frequency fault currents, on the other hand, the ground current containing the high frequency components and surge
Jong-Hyuk Choi +2 more
openaire +1 more source
The most important object of grounding systems is to protect human being from electric shock. Touch and step voltages are measured to evaluate the performances of grounding systems. Dangerous voltages have been largely studied by the power frequency fault currents, on the other hand, the ground current containing the high frequency components and surge
Jong-Hyuk Choi +2 more
openaire +1 more source