Results 21 to 30 of about 582,246 (349)
Energy Reports, 2023 Overvoltage is a critical problem of Thailand’ distribution system. The electrical protection device in the distribution system needs to be able to support this level of overvoltage.
Chaiyaporn Lothongkam +2 more
doaj +1 more source
Topology optimization for a station class surge arrester model
International journal of numerical modelling, 2022 High‐voltage stress can cause partial discharges, which in turn result in deterioration of high‐voltage equipment, and hence, in increased maintenance costs. To this end, corona rings are used as means to capacitive field‐grading.
Dudu Zhang, F. Kasolis, M. Clemens
semanticscholar +1 more source
Full-Scale Testing on Seismic Performance of Surge Arrester with Retrofitted Composite Insulators
Buildings, 2022 In electrical substations, glass-fibre reinforced polymer (GFRP) insulators provide an alternative to porcelain insulators for better seismic performance.
Sheng Li +5 more
semanticscholar +1 more source
Leakage Currents Measurements of Surge Arresters
Energies, 2023 The paper presents the methods of assessing the technical condition of varistor surge arresters used in laboratory tests and in operation - performed without disconnecting the arresters from the network. The analysis of diagnostic methods was supplemented with the results of measurements of the leakage current of arresters coming directly from ...
Marek Olesz +2 more
openaire +2 more sources
Estimation of parameters of metal-oxide surge arrester models using Big Bang-Big Crunch and Hybrid Big Bang-Big Crunch algorithms [PDF]
Journal of Artificial Intelligence and Data Mining, 2016 Metal oxide surge arrester accurate modeling and its parameter identification are very important for insulation coordination studies, arrester allocation and system reliability.
M.M Abravesh +3 more
doaj +1 more source
The Effect of Cable Aging on Surge Arresters Designed by Genetic Algorithm
Applied Sciences, 2023 The degradation of communication cable insulators reduces the availability of the train control system and is caused by the degrading of data transmission line parameters.
Dariusz Zieliński, Damian Grzechca
doaj +1 more source
Design of the monitoring system for the internal state characteristic parameters of ultra-high voltage metal oxide arresters [PDF]
E3S Web of Conferences, 2021 At present, UHV surge arresters have a large number of sections and complex structures. The existing live detection and online monitoring technologies can no longer effectively determine the problem of deterioration of the internal resistance of the ...
Geng Lina +3 more
doaj +1 more source
ANALYSIS OF DIFFERENT MODELS OF MOA SURGE ARRESTER FOR THE TRANSFORMER PROTECTION
, 2018 Circuit breakers, which can operate within 50 ms, are too slow to protect against lightning or switching surges. Lightning surges can rise to peak levels within a few microseconds, and switching surges within few hundred microseconds, fast enough to ...
Ahmed Abugalia, Mohamed Shaglouf
openalex +2 more sources
RETRACTED: Artificial intelligence for emergency medical care
Health Care Science, EarlyView., 2023 ‘Applications of artificial intelligence in emergency medical service’. Abstract There is increasing research into the potential benefits of incorporating artificial intelligence (AI) and machine learning algorithms into emergency medical services. AI is finding new applications across a wide range of sectors, one of which is healthcare, where it is ...
Shivam Rajput +2 more
wiley +1 more source
Development of High Gradient ZnO Arrester Material for High Voltage Applications
IEEE Access, 2020 The presence of stray capacitance in ZnO (Zinc Oxide) surge arresters causes hurdles in arrester operation and non-uniform voltage distribution along the arrester column, especially for High Voltage (HV) and Extra high voltage (EHV) applications.
Kannadasan Raju +4 more
doaj +1 more source