Results 251 to 260 of about 39,032 (308)

Notes on parameter estimation for single-phase transformer

IEEE Transactions on Industry Applications, 2020
This article investigates the inaccuracies of identifying parameters for a single-phase transformer. In addition, in this article, two new transformer parameter estimation algorithms based on recently developed optimization techniques, as well as an objective function, are proposed for the transformer parameter estimation to improve the estimation ...
Martin Calasan, Ana Jovanovic, Vesna Rubezic, Danilo Mujicic, Adel Deriszadeh   +4 more
openaire   +3 more sources

Estimation of residual flux in single phase transformer using dynamic modeling of two winding single phase transformer

2017 International Seminar on Intelligent Technology and Its Applications (ISITIA), 2017
This study deals with estimation of residual flux in 1 kVA 1-phase transformer. Transformers used in the study have two type core cutting topology. The transformers were modeled with MATLAB software and then simulated to obtained inrush current. Experiments were also done in order to obtain its inrush current with different demagnetization time.
I Made Yulistya Negara, Daniar Fahmi, Dimas Anton Asfani, I Gusti Ngurah Satriyadi Hernanda, Ayyub Dhimastara Aji   +4 more
openaire   +3 more sources

3-phase transformer used on single phase

14th International Conference Mechatronika, 2011
This paper deals with the possibility of using three-phase transformer for single-phase power source and single-phase load. The first part of this work is focused on possible ways of utilizing three-phase transformer on single-phase power source and different ways how to load the transformer. Theoretical assumptions were verified by measurements.
openaire   +3 more sources

Single-phase insulator transformers

IEEE Potentials, 2002
To show that voltage surges are effectively transmitted between the windings of insulator transformers, a relatively simple and functional test was prepared. The test applied differential-mode voltage surges with small amplitudes to the primary winding of three different types of single-phase no-load insulator transformers.
S.H.L. Cabral, A. Raizer
openaire   +1 more source

Leakage flux in a single phase transformer

Journal of Magnetism and Magnetic Materials, 1984
Abstract The effects of aluminium magnetic shielding and mild steel magnetic shunts on the leakage flux in the steel tank of a single-phase 50 Hz low power transformer have been investigated.
H.G. Kendall, A. Basak
openaire   +1 more source

Inrush Current Modeling in a Single-Phase Transformer

IEEE Transactions on Magnetics, 2010
This paper introduces a proper model for ferromagnetic core which includes hysteresis, saturation, eddy current losses, and anomalous losses. This model can generate symmetrical and asymmetrical loops with high accuracy. An artificial neural network is used to present the major dc hysteresis loop and initial magnetization curve based on a set of ...
Jawad Faiz, Saeed Saffari
openaire   +1 more source

Performance of single-phase transformer cores assembled from consolidated stacks of electrical steels

Journal of Magnetism and Magnetic Materials, 2003
The effect of different lamination stacking configurations on the performance of single-phase, 50 kVA transformer cores is evaluated in terms of total power loss, apparent power and building factor.
Snell, D., Meydan, Turgut, Marketos, Philip   +2 more
exaly   +2 more sources

Tutorial on Protection of Three Single-Phase Transformers

2019 72nd Conference for Protective Relay Engineers (CPRE), 2019
At the design stage of a new power substation, one of the decisions to be made is whether to select a single three-phase power transformer or a bank of three single-phase transformers. At Churchill Falls Terminal Station 2, of the Lower Churchill Project, a bank of three single-phase 3×280 MVA 735 kV power transformers was selected because of the ...
Stephan D. Picard, Yujie Yin, Nicholas Keough   +2 more
openaire   +1 more source

Idling Mode Simulation of Single-Phase Transformer

2019 IEEE International Conference on Modern Electrical and Energy Systems (MEES), 2019
A unifying mathematical model of the single-phase transformer is developed. This model superposes the external electrical circuit and an electromagnetic fields model, which describing the processes of electromagnetic energy conversion in a transformer.
Dmytro Yarymbash, Mykhailo Kotsur, Yevheniia Kulanina, Tetyana Divchuk   +3 more
openaire   +1 more source