Results 11 to 20 of about 319,403 (355)
Transient impedance of grounding system with impulse superimposed sinewave
ENP Engineering Science Journal, 2021 Investigating the transient performance of grounding systems subject to lightning (impulse or impulse superimposed sinewave) is valuable for protecting the power system and maintaining the system operation.
Sherif Ghoneim +2 more
doaj +1 more source
Energized Diagnostic Technology of Cable Cross-Bonded Defects
IEEE Access, 2023 A new type of energized diagnostic technique aimed at defects in the cross-bonded grounding system of power cables is proposed. Based on the equivalent model of a normal cross-bonded grounding unit, the equivalent models of 23 common cross-bonded defects
Shunyu Yao, Zhen Liu
doaj +1 more source
Effect of Non-Homogeneous Soil Characteristics on Substation Grounding-Grid Performances: A Review
Applied Sciences, 2021 Designing an effective grounding system for AC substations needs predetermination of ground resistance and ground potential distribution caused by fault current’s presence in the ground.
Navinesshani Permal +3 more
doaj +1 more source
Reduction of the step voltages of MV/LV substation grounding system based on shaping electric field [PDF]
Archives of Electrical Engineering, 2021 The article presents the analysis results of the effectiveness limitation of the step voltage by forming an electric field on the ground surface. For shaping the electric field, a method consisting of screens placed around the point of the earth current ...
Roman Sikora, Przemysław Markiewicz
doaj +1 more source
Energy Reports, 2022 In order to enhance the security of ±800 kV High-Voltage DC (HVDC) system, it is needed to consider and analyze the grounding mode of the neutral point of converter transformer.
Jiaqing Fu +4 more
doaj +1 more source
The Journal of Engineering, 2019 Gas insulated transmission line (GIL) is an advanced power transmission mode. Since the extension of this kind of equipment is relatively long, the grounding design and layout of the GIL will have a direct impact on personal safety and the stability ...
Chun Zhao +5 more
doaj +1 more source
Lightning Performance Evaluation of Italian 150 kV Sub-Transmission Lines
Energies, 2020 A significant majority of overhead transmission lines’ (OHLs) outages is due to backflashovers caused by direct lightning strikes: the realistic assessment of the lightning performance is thus an important task.
Fabio Massimo Gatta +4 more
doaj +1 more source
IEEE Access, 2021 It is important to ensure that a grounding system is designed with a low magnitude of earth resistance, so the protection system can divert the large fault current to earth effectively.
Navinesshani Permal +3 more
doaj +1 more source
Grounding System Adequacy of HV/MV Substations in Areas With Reduced Accessibility [PDF]
, 2015 The adequacy of grounding systems has to be verified periodically in the operational time. With urban development and buildings growth adjacent to power systems as HV/MV substations, it is very rare to have area around with sufficient accessibility for ...
Farber, Alexander +4 more
core +1 more source
Grounding System Cost Analysis Using Optimization Algorithms
Energies, 2018 In this study, the concept of grounding systems is related to the voltage tolerance of the human body (human body voltage tolerance safety value). The maximum touch voltage target and grounding resistance values are calculated in order to compute the ...
Jau-Woei Perng +2 more
doaj +1 more source