Results 271 to 280 of about 858,505 (337)

Single-Phase and Three-Phase Transformers

Electrical Machine Fundamentals with Numerical Simulation using MATLAB/SIMULINK
openaire   +2 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   +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

Single-Phase Power Transformer Formed Cores

Transactions of the American Institute of Electrical Engineers, 1950
For many years power and distribution transformer cores were built of hot-rolled laminations assembled into a core structure. When cold-rolled, oriented strip steel was introduced into transformers, new types of distribution transformer cores were developed.
T. D. Gordy, G. G. Somerville
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

Single-Phase Isolated AC-AC Converters Based on the Dual Active Bridge Converter

IEEE transactions on industrial electronics (1982. Print), 2021
This article presents three single-phase isolated ac–ac converters based on the dual active bridge (DAB) converter and interleaved transformers. The structures allow obtaining filter elements with reduced dimensions, as well as bidirectional power flow ...
O. C. S. Filho, F. L. Tofoli, D. Honório, L. Barreto, D. Oliveira   +4 more
semanticscholar   +1 more source

Phase Rebalancing of Distribution Circuits Dominated by Single-Phase Loads

IEEE Transactions on Power Systems, 2021
Phase balancing of American-type three-phase distribution circuits is one of the classical problems faced by distribution system operators and planners. In this paper, a mixed-integer non-linear programming problem is formulated to minimize the number of
Orlando Pereira, J. Quirós-Tortós, G. Valverde   +2 more
semanticscholar   +1 more source

Single-Phase Universal Active Filter Without Transformer

APEC 07 - Twenty-Second Annual IEEE Applied Power Electronics Conference and Exposition, 2007
This paper presents an universal active filter for harmonic and reactive power compensation in single-phase system. It is a combined system of a series active filter and a shunt active filter without use of transformer. The proposed system is suitable for applications where the size is a critical factor.
C. B. Jacobina, W. R. N. Santos, A. C. Oliveira, E. R. C. da Silva, E. C. dos Santos   +4 more
openaire   +1 more source

Isolated single-phase single-stage DC-AC cascaded transformer-based multilevel inverter for stand-alone and grid-tied applications

, 2021
This paper proposes a new single-phase DC-AC Cascaded Transformer-based Modular Multilevel Inverter (CTMLI) with its PWM switching technique considering minimum components count per output voltage level.
A. Ali, M. A. Sayed, T. Takeshita
semanticscholar   +1 more source

Single-Phase Isolated AC–AC Symmetrical Full-Bridge Converter

IEEE Journal of Emerging and Selected Topics in Power Electronics, 2021
This work proposes an ac–ac converter based on interleaved transformers associated with the dual active bridge (DAB) converter. The resulting symmetrical full-bridge converter (SFBC) can achieve high efficiency over a wide range of the output power and ...
Olympio Cipriano da Silva Filho, F. L. Tofoli, L. Barreto, D. de Souza Oliveira   +3 more
semanticscholar   +1 more source