Results 31 to 40 of about 16,886,585 (187)
Improving Vision Transformers by Revisiting High-Frequency Components
, 2022 The transformer models have shown promising effectiveness in dealing with various vision tasks. However, compared with training Convolutional Neural Network (CNN) models, training Vision Transformer (ViT) models is more difficult and relies on the large-scale training set.
Jiawang Bai +5 more
openaire +3 more sources
Low and high frequency model of three phase transformer by frequency response analysis measurement
Open Physics, 2018 The behavior analysis of the transformer is usually achieved by the frequency response analysis (FRA), which is obtained by the application of a very low AC voltage in over a wide frequency range.
Chaouche Moustafa Sahnoune +2 more
doaj +1 more source
High frequency transformer computer modeling [PDF]
2007 Australasian Universities Power Engineering Conference, 2007 Frequency response analysis (FRA) technique is nowadays widely used in both factory and field applications as a diagnostic tool for power transformers. The main problem about FRA techniques is to interpret the observed evolution of the frequency response in order to identify failures.
Ahmed A. Siada, Syed Islam
openaire +1 more source
Intelligent Transformer: Possibilities and Challenges
Electrical, Control and Communication Engineering, 2011 This paper covers the concept of an intelligent transformer that is a good candidate to replace a conventional low frequency transformer in the microgrids. As the power production and consumption can vary in a wide range, the new substations have to meet
Beldjajev Viktor +2 more
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Design, analysis and test of a high frequency transformer [PDF]
, 2023 openThe progress of power electronics depends heavily on the use of high frequencies. One of the components that has been most affected by this change is the transformer, which can be made with dimensions and weights well below those of conventional low-
CARIOLATO, RICCARDO
core
, 2009 The development of transformer models can be achieved based on experimental frequency response measurements providing access to the windings is available and the physical dimensions are known in order to calculate R, L and C parameter values. Of interest
Mohamed, R, Lewin, P L
core +1 more source
EnergiesPartial discharge, as an important indicator of insulation degradation in transformers, is a crucial means of assessing the insulation performance of transformers.
Zhiqin Ma +6 more
doaj +1 more source
Features of the high frequency power transformer calculation
Nauka ta progres transportu, 2013 Purpose. The windings of power transformers have low resistance value and a most inductance, which reduces the rate of rise of current in the windings.
D.A. Zabarilo
doaj
Study of medium frequency transformer by using ultra‐thin silicon steel sheet in DC‐DC converter
IET Power Electronics, 2022 In order to solve the problems of poor thermal stability and high frequency noise of transformer in traditional DC‐DC converter, the medium frequency transformer in isolated DC‐DC converter is designed and studied, which adopts 0.15 mm ultra‐thin silicon
Dezhi Chen +5 more
doaj +1 more source
Wide-Band Characteristic Analysis and Compensation Research of Electromagnetic Current Transformer
EnergiesIn order to realize the wide frequency applicability of the electromagnetic current transformer in a ‘double high’ power system, the equivalent circuit model of the electromagnetic current transformer under wide frequency is established.
Xingyan Wu +4 more
doaj +1 more source