Results 61 to 70 of about 574,125 (334)

Optimization of Surge Arrester Locations in Overhead Distribution Networks [PDF]

open access: yesIEEE Transactions on Power Delivery, 2015
Lightning is considered one of the main causes of faults in overhead distribution networks. Direct strokes usually lead to flashovers due to the insulation levels that are used. Induced overvoltages caused by indirect lightning are usually lower and can be efficiently reduced by metal-oxide surge arresters.
Bullich Massagué, Eduard   +3 more
openaire   +4 more sources

Selection and coordination of surge arresters for switching transient mitigation in photovoltaic power plants [PDF]

open access: yes, 2017
: Photovoltaic energy generation has become a popular renewable alternative to conventional energy generation that utilise fossil fuels. However, given the diversity and complexity of these PV plants, it is imperative that such plant equipment be ...
Bokoro, P.   +3 more
core  

A wireless system for monitoring leakage current in electrical substation equipment [PDF]

open access: yes, 2016
In this paper, the design and the development of a remote system for continuous monitoring of leakage currents and ground currents in high voltage electrical substations are proposed.
Bogias, A. C.   +4 more
core   +1 more source

Understanding Youth Assaults of Police Officers in Australia: A Power Threat Meaning Framework Analysis

open access: yesAustralian Journal of Social Issues, EarlyView.
ABSTRACT This study explores youth violence towards police officers in Australia through the Power Threat Meaning Framework (PTMF) to better understand the underlying factors contributing to such violence; focusing on power dynamics, childhood adversity, and trauma.
Dimitra Lattas   +4 more
wiley   +1 more source

A Simplified Lightning Model for Metal Oxide Surge Arrester [PDF]

open access: yes, 2002
Lightning strike has been one of the major factors that lead to failure of electrical power systems. In recent years, metal oxide surge arrester has been widely used and it is now an essential item in the insulation coordination for power systems based ...
Mardira, K. P., Saha, T.K.
core  

‘Where are the adults?’: Troubling child‐activism and children's political participation

open access: yesBritish Educational Research Journal, EarlyView.
Abstract Children's political participation is a well‐established theme in childhood studies. In this article we offer an original account of child activism that takes into account the entangled and emergent aspect of children as activists. We begin with a historical and a conceptual review, noting the importance of mid‐20th century developments such ...
Sharon Hunter, Claire Cassidy
wiley   +1 more source

A METHOD OF DETERMINING THE ABILITY OF THE ARRESTER TO ABSORB ENERGY WITHOUT BREAKING THE HEAT BALANCE

open access: yesElectrical engineering & Electromechanics, 2015
Purpose.The aim of this study is to obtain a method for determining the capacity surge arrester nonlinear absorb energy without breaking the heat balance in modes of long-term application of operating voltage, which allows for analysis of their work in ...
S.Yu. Shevchenko
doaj  

Comprehensive Analysis of Transient Overvoltage Phenomena for Metal-Oxide Varistor Surge Arrester in LCC-HVDC Transmission System with Special Protection Scheme

open access: yesEnergies, 2022
This paper proposes a systematic and deterministic method for metal-oxide varistor (MOV) surge arrester selection based on the comprehensive analysis in line-commutated converter (LCC)-based high-voltage direct current (HVDC) transmission systems.
Jaesik Kang
doaj   +1 more source

Infant Death due to Cannabis Ingestion

open access: yesDrug Testing and Analysis, EarlyView.
ABSTRACT A child died in the emergency room of a local hospital a few hours after ingesting a substance the color of cork and the consistency of earth. At home, a modest amount of resinous substance was found. At the hospital, the child exhibited alterations in walking, balance, and consciousness.
Donata Favretto   +9 more
wiley   +1 more source

Surge Arrester Placement for Long Transmission Line and Substation [PDF]

open access: yes, 2018
: Prior work in literature has illustrated the benefits of using surge arrester as a way to improve the lighting performance of the substation and transmission line.

core  

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