Results 21 to 30 of about 145,997 (307)

STUDY AND DESIGN OF SINGLE PHASE CONVERTER USING OF SINGLE PHASE TRANSFORMER

International Journal of Research -GRANTHAALAYAH, 2016
The field of electrical transformer are most important equipment which is use to convert ac voltage or current like lower to higher , higher to lower without change in the frequency . its primary side and secondary side are isolate from each other and it can higher or lower voltage level the apparent value of electrical passive element like inductive ,
Prof. G.R.Kumrey, Dr. S. K. Mahobia
openaire   +2 more sources

Analysis and design of a modular multilevel converter with trapezoidal modulation for medium and high voltage DC-DC transformers [PDF]

, 2015
Conventional dual active bridge topologies provide galvanic isolation and soft-switching over a reasonable operating range without dedicated resonant circuits.
Adam, Grain P., Ahmed, Shehab, Gowaid, I. A., Holliday, Derrick, Williams, Barry W.   +4 more
core   +2 more sources

Modified Two-core Phase-shifting Transformer Based on the Classical «Delta Connection» Scheme [PDF]

Problems of the Regional Energetics, 2016
Nowadays, in joined power systems increases the role and significance of phase-shifting devices, which are used in the quality of FACTS-controllers (Flexible Alternative Current Transmission System), allowing solving various problems of modes management ...
Golub I.V., Zaitsev D.A., Zubareva I.G.
doaj  

ASPECTS REGARDING THE OPERATING REGIME IN CHARGE OF SINGLE PHASE ELECTRICAL TRANSFORMERS [PDF]

Analele Universităţii "Constantin Brâncuşi" din Târgu Jiu: Seria Inginerie, 2019
The paper presents a case study on the operating regime in charge of single-phase transformers. The case study relates to a functional model that has in its configuration a single-phase electric transformer with an apparent power of 250 VA and a ...
Cristinel Popescu
doaj  

Introducing small storage capacity at residential PV installations to prevent overvoltages [PDF]

, 2011
Low voltage distribution feeders are designed for unidirectional energy supply from transformer to consumer. However, the implementation of small-scale PV production units on local utilities may result in bidirectional energy flows.
Cappelle, Jan, Debruyne, Colin, Desmet, Jan, Van Maerhem, Thomas, Vanalme, Johan, Verhelst, Bart, Vispoel, Stijn   +6 more
core   +1 more source

Smart Transformer-Based Single Phase-To-Neutral Fault Management [PDF]

IEEE Transactions on Power Delivery, 2019
The smart transformer (ST), with its high control capability, offers new features for optimizing the management of the distribution grid. The ST, by controlling the voltage in each phase independently, is able to manage the operations during grid faults, in particular in the single-phase ones.
Giovanni De Carne, Marius Langwasser, Rongwu Zhu, Marco Liserre   +3 more
openaire   +2 more sources

Modeling of a Single-Phase High-Voltage Power Supply for a Single Magnetron [PDF]

E3S Web of Conferences
Industrial microwave generators operating at 2.45 GHz commonly use magnetrons as microwave sources, requiring robust and reliable high-voltage (HV) power supplies. This paper presents a nonlinear electrical model of a single-phase HV power supply feeding
Elkhatat Hayat, Bahni Boubakar, Dkiouak Aziz, Dlimi Said   +3 more
doaj   +1 more source

Evaluation of DC-AC Single-Phase Solid-State Transformers [PDF]

IEEE Latin America Transactions, 2019
This work presents an evaluation of three topologies of DC-AC single-phase solid state transformers, for applications in electric microgrids. The main features of these topologies are galvanic isolation, capability to control the power flow bidirectionally, soft switching and unit power factor under open loop control. The principle of operation of each
Bosso, Jonathan Emmanuel, Llomplat, Marcelo, Oggier, German Gustavo, Garcia, Guillermo   +3 more
openaire   +2 more sources

Voltage regulation considerations for the design of hybrid distribution transformers [PDF]

, 2014
The future substation depends on finding a way to mitigate the effects of the drawbacks of the conventional legacy by employing the efficiency of the solid state switches [1].
Alqarni, M, Darwish, M, Radi, MA
core   +1 more source

Simulation of the remanence influence on the transient states in a single-phase multiwinding transformer

Archives of Electrical Engineering, 2017
This paper presents the mathematical model of a single-phase multi-winding core type transformer taking into account magnetic hysteresis phenomenon based on the feedback Preisach model (FPM).
Wilk Andrzej, Michna Michał
doaj   +1 more source