Results 91 to 100 of about 10,677,552 (246)

Protection of power transformer using microcontroller-based relay [PDF]

, 2002
This paper describes the design and implementation of the micro controller-based system for protecting power transformer. The system includes facilities for discrimination between internal fault current and magnetizing inrush current, differential ...
Bashi, Senan Mahmood, Mailah, Nashiren Farzilah, Mariun, Norman, Rafa, A., Wan Hasan, Wan Zuha   +4 more
core   +1 more source

Ferromagnetically Shielded Fault Current Limiter (FS‐FCL) Evaluation in Power Line

IET Generation, Transmission &Distribution, Volume 20, Issue 1, January/December 2026.
This study introduces a new ferromagnetically shielded FS‐FCL design and its control strategy for limiting and interrupting fault currents. The fully shielded core structure enhances inductance and prevents saturation, enabling an immediate fault response without causing voltage drop during normal conditions.
Kamran Ghorbanyan, Selim Acar
wiley   +1 more source

Modeling and Simulation of a Distributed Power System for Avionic Application [PDF]

, 2010
This paper describes design and analysis method for a DC distributed power system for Avionic Application utilizing simulation. In order to obtain rapid time to market, the used system components are typically commercial off-the-shelf components (COTS ...
Alou Cervera, Pedro, Cobos Márquez, José Antonio, García Suárez, Oscar, Oliver Ramírez, Jesús Angel, Prieto López, Roberto, Vesti, Sanna Kaarina   +5 more
core   +1 more source

A Systematic Review of Grid Following, Grid Forming and Mode Switching Control in MVDC Distribution Networks

IET Generation, Transmission &Distribution, Volume 20, Issue 1, January/December 2026.
This paper reviews the common grid‐following (GFL) and grid‐forming (GFM) control principles, technical characteristics, and the limitations of their medium‐voltage direct current (MVDC) applications. In addition, typical switching strategies for GFL and GFM are introduced and analysed. Finally, the applications of MVDC adopting GFL, MVDC adopting GFM,
Xiaoyang Wang, Kaiqi Sun, Zaide Xu, Mingyang Li, Ge Cao, Ke‐Jun Li   +5 more
wiley   +1 more source

Research of restraining of transformer excitation inrush current based on improved series closing resistance

Gong-kuang zidonghua, 2013
Based on using closing resistance to reduce transformer excitation inrush current produced in underloading and no-load, an improved method of in series with capacitor on closing resistance was proposed.
LI Ping, SONG Xiao
doaj  

Solid-State Inrush Current Limiter Controller Based on Inrush Prediction for Large Transformers

, 2020
Inrush current problems of the industrial transformers are occasionally more serious than the utility transformers. A new Solid-State Inrush Current Limiter (SSICL) is proposed for medium voltage power transformers. The SSICL consists of three similar sets.
Tashakor, Nima, Ghanbari, Teymoor, Farjah, Ebrahim, Bagheri, Ehsan, Goetz, Stefan   +4 more
openaire   +2 more sources

Transients in no-load condition of power transformer 20/0,4 kV [PDF]

, 2010
Ovaj rad predstavlja inovativan pristup u analizu prijelaznih pojava u elektroenergetskom sustavu korištenjem novopredloženih načina obrade podataka dobivenih iz procesora ugrađenog u moderne zaštitne releje u elektroenergetskom sustavu.
Damir Crnković, Marinko Stojkov, Nino Vrandečić   +2 more
core   +1 more source

Harmonic elimination of a fifteen‐level inverter with reduced number of switches using genetic algorithm

IET Power Electronics, Volume 19, Issue 1, January/December 2026.
This article presents a Fifteen‐level inverter topology that has a lesser number of switches (12) and can accommodate isolated DC sources. The total harmonic elimination (THD) of the proposed topology using genetic algorithm is within the IEEE 519 standards. Further, the fifteen‐level inverter is implemented in Hardware and firing pulses were generated
Yogesh Joshi, Shimi Sudha Letha, Farhad Ilahi Bakhsh, Gopal Lal Jaat, Suyash Tilak   +4 more
wiley   +1 more source

Inrush Current Reduction of Three-Phase Transformers Using Optimal Energization Angle Control

IEEE Access
When a transformer is energized, the inrush current can reach several tens of times higher than the steady-state magnetizing current, which may cause maloperation of protective relays, voltage dips and deterioration of power quality.
Jin-Sung Cho, Sung-Jun Park, Sang-Kil Lim   +2 more
doaj   +1 more source

Application of Park's power components to the differential protection of three-phase transformers [PDF]

, 2014
This paper presents a new scheme for power transformers differential protection, in which the concept of the Park's instantaneous differential powers is introduced. The proposed method is able to detect winding insulation failures and to distinguish them
A.J. Marques Cardoso, Ahmed, Ajaei, Ala, Baoming, Blume, Darwish, Drif, Drif, Díaz, Faiz, Ferrero, Gajic, Girgis, Guerreiro, Hayward, Hooshyar, Inagaki, Kasztenny, Kennedy, Lawhead, Lin, Luís M.R. Oliveira, Ma, Mekic, Monsef, Oliveira, Oliveira, Oliveira, Patterson, Phadke, Rajakovic, Rockefeller, Rockefeller, Sidhu, Sparling, Thompson, Tripathy, Tripathy, Villamagna, Wang, Wiszniewski, Yabe, Youssef, Zhalefar, Zhang   +45 more
core   +1 more source