Results 31 to 40 of about 133,467 (304)

Tower Models for Power Systems Transients: A Review

open access: yesEnergies, 2022
Fast-front transients play an important role in the insulation design of any power system. When a stroke hits the shield wire or the tower of high-voltage overhead power lines, flashover may occur either along the span or across tower insulators, depending on the relevant voltages and insulation strength.
Stracqualursi E.   +3 more
openaire   +3 more sources

Industrial Fieldbus Improvements in Power Distribution and Conducted Noise Immunity With No Extra Costs [PDF]

open access: yes, 2011
Industrial distributed control continues the move toward networks at all levels. At lower levels, control networks provide flexibility, reliability, and low cost, although perhaps the simplest but most important advantage is the reduced volume of ...
Barbancho Concejero, Antonio   +3 more
core   +1 more source

A novel reliability prediction with input transients for an LLC converter

open access: yesFrontiers in Energy Research, 2022
Utility applications demand highly reliable power converters to match market quality needs. The classical reliability prediction methods do not account for the sudden transients involved with the power converter.
Ramesh B. Darla, Chitra Annamalai
doaj   +1 more source

Combined Approach of PNN and Time-Frequency as the Classifier for Power System Transient Problems [PDF]

open access: yesMehran University Research Journal of Engineering and Technology, 2013
The transients in power system cause serious disturbances in the reliability, safety and economy of the system. The transient signals possess the nonstationary characteristics in which the frequency as well as varying time information is compulsory for ...
Aslam Pervez Memon   +2 more
doaj  

Modeling of grain-oriented Si-steel and amorphous alloy iron core under ferroresonance using Jiles–Atherton hysteresis method

open access: yesAIP Advances, 2018
Amorphous alloy is increasingly widely used in the iron core of power transformer due to its excellent low loss performance. However, its potential harm to the power system is not fully studied during the electromagnetic transients of the transformer ...
Wenxia Sima   +4 more
doaj   +1 more source

Prony Analysis for Power System Transient Harmonics [PDF]

open access: yesEURASIP Journal on Advances in Signal Processing, 2007
Proliferation of nonlinear loads in power systems has increased harmonic pollution and deteriorated power quality. Not required to have prior knowledge of existing harmonics, Prony analysis detects frequencies, magnitudes, phases, and especially damping factors of exponential decaying or growing transient harmonics.
Li Qi   +3 more
openaire   +3 more sources

The Effect of Power factor Improvement on Switching Transients: A Case of FUMMAN Agricultural Products Industry Plc. [PDF]

open access: yes, 2015
Industrial loads are mostly inductive and hence operate at low power factor. Several methods including the installation of capacitor banks are available for improving power factor in order to reduce the kilovolt ampere (kVA) demand of the load and power ...
Adejumobi, I. A.   +3 more
core   +1 more source

Dynamic Equivalents in Power System Studies: A Review

open access: yesEnergies, 2022
In this paper, the available methods and procedures for creating equivalents for the analysis of electromagnetic transients in power systems are presented and discussed.
Paweł Sowa, Daria Zychma
doaj   +1 more source

Enteropathogenic E. coli shows delayed attachment and host response in human jejunum organoid‐derived monolayers compared to HeLa cells

open access: yesFEBS Letters, EarlyView.
Enteropathogenic E. coli (EPEC) infects the human intestinal epithelium, resulting in severe illness and diarrhoea. In this study, we compared the infection of cancer‐derived cell lines with human organoid‐derived models of the small intestine. We observed a delayed in attachment, inflammation and cell death on primary cells, indicating that host ...
Mastura Neyazi   +5 more
wiley   +1 more source

Development of a vector control system based on the DFSMC for the study of transients in the conditions of creating a digital twin of the power system [PDF]

open access: yesE3S Web of Conferences
The article considers an event to increase throughput using smart grid technologies (FACTS) based on a combined vector control device for mode parameters (power flow) based on an asynchronous electromechanical frequency converter (DFSMC).
Suprunov Igor   +2 more
doaj   +1 more source

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