Results 121 to 130 of about 577,169 (349)

Consideration of surge arresters for low voltage mains applications [PDF]

open access: yes, 2012
The work presented in this report details the background to surge arresters and surge protective device components, viz., spark gaps, gas discharge tubes and metal oxide varistors.
Michalopoulos, Aristidis
core  

ANALYSIS AND COMPARISON OF METAL-OXIDE SURGE ARRESTER MODELS

open access: yes, 2017
The objects of the research are: full and simplified dynamic models of surge arresters, as well as the model of surge arrester in the form of a nonlinear resistor.
V. Brzhezitsky, Y. Trotsenko, Y. Haran
semanticscholar   +1 more source

Disability, Gender and Segregation in the Britain–Australia Convict System

open access: yesGender &History, EarlyView.
ABSTRACT This article assesses the gendered experiences of disability and segregation among prisoners in colonial (1830s) New South Wales. I use the distinction between impairment and disability from the ‘social model of disability’ to show that the disabling capacities of impairments varied depending on wider social structures and beliefs, and on each
Emily Cock
wiley   +1 more source

STUDY OF SURGE ARRESTER MODEL UNDER INFLUENCE OF VARIOUS CURRENT PULSES

open access: yes, 2017
The model of surge arrester, which consists of two nonlinear resistors, connected with each other via two inductive and a resistive element is studied.
Y. Trotsenko   +2 more
semanticscholar   +1 more source

Home but not free: Rule‐breaking, withdrawal, and dignity in reentry

open access: yesCriminology, EarlyView.
Abstract Research on reentry has documented how material hardship, network dynamics, and carceral governance impede reintegration after prison, but existing scholarship has left underdeveloped other instances in which adverse outcomes stem from the institution's socioemotional dynamics and people's practical and emotional responses to bureaucratic ...
Gillian Slee
wiley   +1 more source

Leakage Current Sensor and Neural Network for  MOA Monitoring. [PDF]

open access: yesComput Intell Neurosci, 2022
He T, Li Y, Zhang Z, Shen P, Zhang Y.
europepmc   +1 more source

Contribution to the Evaluation of Silicon Carbide Surge Arresters

open access: yes, 2011
Basically, there are two types of surge arresters installed in the power system: the silicon carbide (SiC) surge arresters and the zinc oxide (ZnO) ones. The SiC surge arresters are being replaced by the latter but a large number are still operating in the electrical system.
Arnaldo Gakiya Kanashiro, Milton Zanotti
openaire   +4 more sources

Condition Monitoring of Zinc Oxide Surge Arresters

open access: yes, 2011
Over voltages in power system may occur due to lightning, fault or switching operation. These overvoltages could reach dangerous amplitudes for power system apparatus. To protect the system electrical equipment and to guarantee an economic and reliable operation, surge arresters are applied in almost all types of electrical power network.
Novizon, Novizon   +3 more
openaire   +3 more sources

Simulation of overvoltage stresses on surge arrester insulation

open access: yes, 2016
Summary Impulse voltage testing is generally carried out for assessing the insulation strength of power equipment using standard impulse voltage waveforms in high-voltage laboratory.
Kaveri Bhuyan, S. Chatterjee
semanticscholar   +1 more source

The countervailing impacts of significant 2020 events on youth delinquency

open access: yesCriminology, EarlyView.
Abstract We test hypotheses that three significant events in the year 2020 impacted U.S. youths’ involvement in crime: (H1) less delinquency due to the coronavirus‐19 (COVID‐19) pandemic and associated constraints to youths’ routine activities and substance use; (H2) more delinquency due to the police killing of George Floyd and ensuing social unrest ...
Eric P. Baumer, Jeremy Staff
wiley   +1 more source

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