Results 31 to 40 of about 14,210 (261)
Grounding transient response of lightning protection GTIERRAS software
Revista Facultad de Ingeniería Universidad de Antioquia, 2006 A computer program developed in Matlab (GTIERRAS) from an electromagneticbased model is used to assess grounding impedances and the behavior of grounding electrodes of arbitrary shapes under lightning impulses. Impedance, currents and voltages, or other
Héctor David Gómez Montoya +3 more
doaj +1 more source
Праці Інституту електродинаміки Національної академії наук України, 2020 The article shows the urgency of the problem of studying resonant processes in extra high voltage power lines. The research of processes in extra high voltage power transmission lines is carried out to develop and implement measures to prevent ...
В.В. Кучанський +1 more
doaj +1 more source
Angewandte Chemie, EarlyView.Sketch for chemical Na bilayer (a) aggregation to higher aggregates (b), resulting in loss of space charge zones. The electrons compensating for the Na+ are partly in the space charge layers and partly in‐between the Na‐layers. ABSTRACT The difficult intercalation of sodium (Na) into graphite is studied by systematic and long‐time investigations (of up
Chuanhai Gan +7 more
wiley +2 more sources
An overview of biodiesel energy [PDF]
, 2020 Over the last ten years’ attention to biofuels production has increased dramatically and become crucial. One of the main factors is the rise in world oil prices, coupled with the abatement of greenhouse gas emissions and concerns about energy security ...
Abd Halim, Muhamad Fazli +3 more
core
Transactions of The Electrochemical Society, 1938 The overvoltage of hydrogen was measured on platinum, silver, copper, gold, tin, iron, zinc, lead, and nickel ; likewise the overvoltage of oxygen on platinum and on gold in potassium hydroxide solutions. Colloidal metal, if present in the electrolyte, changed the overvoltage. Rotating the electrode decreased the overvoltage.
Herschel Hunt +2 more
openaire +1 more source
Evaluating the High Frequency Behavior of the Modified Grounding Scheme in Wind Farms
Applied Sciences, 2017 Wind generators are exposed to numerous destructive forces such as lightning and are therefore vulnerable to these phenomena. To evaluate the transient behavior of a wind power plant during direct and indirect strikes, modeling of all relevant components
Seyede Fatemeh Hajeforosh +3 more
doaj +1 more source
Overvoltages during switching operations of vacuum switching devices [PDF]
Zbornik Radova: Elektrotehnički Institut "Nikola Tesla", 2013 This paper presents the results of experimental studies of voltage phenomena in the switching operations of vacuum switching devices made by various manufacturers in several different configurations of 6 kV, 10 kV, 20 kV and 35 kV networks.
Vukelja Petar +3 more
doaj +1 more source
Power Converters and Power Quality [PDF]
, 2015 This paper discusses the subject of power quality for power converters. The first part gives an overview of most of the common disturbances and power quality issues in electrical networks for particle accelerators, and explains their consequences for ...
Kahle, K.
core +3 more sources
Energies, 2019 The increased utilisation of distributed renewable energy sources in low voltage grids leads to power quality problems such as overvoltages and voltage unbalance.
Dimitar Bozalakov +4 more
doaj +1 more source
PI-based controller for low-power distributed inverters to maximise reactive current injection while avoiding over voltage during voltage sags [PDF]
, 2018 This paper is a postprint of a paper submitted to and accepted for publication in IET Power Electronics and is subject to Institution of Engineering and Technology Copyright.
Camacho Santiago, Antonio +4 more
core +2 more sources