Results 111 to 120 of about 9,639,269 (244)
Sympathetic inrush currents in transformer energisation
, 2018 Power transformers are critical components of the electricity networks. It is common knowledge that transformer energisation causes a number of slow-front inrush current transient problems. With the increase of distributed generations with inherent high intermittency resulting in more switching events, the transformers in service are increasingly ...
openaire +2 more sources
Fault blocking converters for HVDC transmission : a transient behaviour comparison [PDF]
, 2018 A thorough comparison of the transient behaviours of two state-of-the-art converters suitable for HVDC transmission is presented. The Alternate Arm and Mixed-Cell Modular Multilevel Converter topologies both have DC fault blocking capability and are ...
Finney, S. +3 more
core
Research of a New Criterion of Main Protection of Transformer
Gong-kuang zidonghua, 2012 In view of problems that traditional main protection of transformer cannot identify inrush current and internal fault current of transformer, the paper proposed a new criterion of main protection of transformer based on dead angle of differential current.
HE Ren-wang +3 more
doaj
Next generation design framework for the aircraft electric power system [PDF]
, 2014 Comprehensive understanding and analysis of the more electric aircraft network architecture (MEA) usually require a powerful simulation framework, which allows modelling, simulation and post-processing of aircraft electric power systems.
Ji, Yang, Kuhn, Martin R.
core
Impacts of ferroresonance and inrush current forces on transformer windings
IET electric power applications, 2019 Deformation of the windings is one of the main causes of the power transformers failure. Here, for the first time, the electromagnetic forces exerted on the windings are computed in ferroresonance condition and compared with that of the inrush current ...
M. Mikhak-Beyranvand +3 more
semanticscholar +1 more source
Energies, 2018 The dual active bridge isolated bidirectional DC-DC converter (DAB-IBDC) is one of the prime converters used in dual active bridge renewable energy storage system (RESS) applications, particularly where a high-power density is required.
P. Sathishkumar +5 more
doaj +1 more source
Efficient resonant-type transformer inrush current limiter
IET Electric Power Applications, 2012 This study presents a new structure of a solid-state inrush current limiter (SSICL) to mitigate the inrush current of transformers. The proposed SSICL has a series-parallel resonant structure that is formed by two resonant circuits tuned at the supply frequency.
T. Ghanbari, E. Farjah
openaire +1 more source
Novel Techniques to Reduce Transformer Inrush Current Using EMTP Software
مهندسی مخابرات جنوبTransformer inrush current is a high-amplitude, non-sinusoidal transient that occurs during initial energization, leading to voltage dips, power quality degradation, and relay misoperations.
Amir Ghaedi +2 more
doaj
Calculation Of Magnetizing Inrush Current In Transformer
, 2017 When transformer is energized its current reaches very high value generally approximately 10 to 20 times greater than its rated current. This paper deals with study of calculation of inrush current in transformer. Different methods are available to calculate inrush current in transformer.
SACHIN S. DADHE +2 more
openaire +1 more source
Cause Identification of Electromagnetic Transient Events using Spatiotemporal Feature Learning
, 2019 This paper presents a spatiotemporal unsupervised feature learning method for cause identification of electromagnetic transient events (EMTE) in power grids.
Arghandeh, Reza +3 more
core