Results 21 to 30 of about 1,116 (301)

Fire in the Earth System

open access: yesScience, 2009
Burn, Baby, Burn Wildfires can have dramatic and devastating effects on landscapes and human structures and are important agents in environmental transformation. Their impacts on nonanthropocentric aspects of the environment, such as ecosystems, biodiversity, carbon reserves, and climate, are often overlooked.
Bowman, David M. J. S.   +21 more
openaire   +4 more sources

New Method for Modelling Seasonal Variation in Resistance and Performance of Earthing Systems

open access: yesEnergies, 2023
The current techniques utilized for estimating seasonal fluctuations in earthing system resistance, including artificial neural networks (ANNs) and correlation/correction factors, rely on resistance records, soil resistivity measurements, and ...
Onyedikachi Samuel Nnamdi   +1 more
doaj   +1 more source

Investigation of different system earthing schemes for protection of low-voltage DC microgrids

open access: yesThe Journal of Engineering, 2019
DC microgrids are expected to play an important role in maximising the benefits of distributed energy resources in future low carbon smart power systems.
Ahmad Makkieh   +4 more
doaj   +1 more source

Two Sided Earthing Versus one Sided Earthing for Ethernet Cables [PDF]

open access: yes, 2019
The discussion about the earthing method of Shielded Twisted Pair (STP) cables never stops. There is a difference in opinion between Local Area Network (LAN) equipment manufacturers and Electromagnetic Compatibility (EMC) specialists.
Wang, Wei   +7 more
core   +1 more source

Analisa Perbandingan Tahanan Pembumian Peralatan Elektroda Pasak pada Gedung Laboratorium Teknik Universitas Borneo Tarakan

open access: yesJurnal Nasional Teknik Elektro, 2017
Earthing systems are less well able to cause damage to electrical equipment. The risks are more current can not be optimally channeled back to earth. The smaller the resistance value, The better the earthing system. In certain soil conditions, grounding
Achmad Budiman
doaj   +1 more source

Comparative Analysis of High-Voltage Power Line Models for Determining Short-Circuit Currents in Towers Earthing Systems

open access: yesEnergies, 2021
The article deals with the problems of single-phase short-circuit current distribution in overhead power lines. Short-circuit disturbances cause many negative phenomena in power networks.
Rafał Tarko   +3 more
doaj   +1 more source

Influence of LV neutral grounding on global Earthing Systems [PDF]

open access: yes, 2015
International Standards define a Global Earthing System as an earthing net created interconnecting local Earthing Systems (generally through the shield of MV cables and/or bare buried conductors). In Italy the Regulatory Authority for Electricity and Gas
Parise L.   +64 more
core   +1 more source

Influence of the earth connections of the PWM drive on the voltage constraints endured by the motor insulation

open access: yesOpen Physics, 2020
The high electrical stresses in the Electrical Insulation Systems of machines fed by pulse width modulation (PWM) inverters remain a limitation of the lifetime.
Roger Daniel   +2 more
doaj   +1 more source

Modeling of German Low Voltage Cables with Ground Return Path

open access: yesEnergies, 2021
In this contribution, measurement data of phase, neutral, and ground currents from real low voltage (LV) feeders in Germany is presented and analyzed. The data obtained is used to review and evaluate common modeling approaches for LV systems.
Johanna Geis-Schroer   +6 more
doaj   +1 more source

Earth system economics: a biophysical approach to the human component of the Earth system [PDF]

open access: yesEarth System Dynamics, 2020
Abstract. The study of humans has largely been carried out in isolation from the study of the non-human Earth system. This isolation has encouraged the development of incompatible philosophical, aspirational, and methodological approaches that have proven very difficult to integrate with those used for the non-human remainder of the Earth system. Here,
E. D. Galbraith   +2 more
openaire   +5 more sources

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