Results 31 to 40 of about 2,611 (226)
Varying the energisation condition to mitigate sympathetic inrush current [PDF]
, 2023 Transformers are generally easy to access and can contribute significantly to entire power system. When a transformer is turned on for the first time, it produces a magnetising inrush current which acts as a starting current.
Zali, Samila Mat +7 more
core +2 more sources
Commutation failure suppression strategy of hybrid DC transmission based on active current limiting
电力工程技术, 2022 Aiming at the problem of large inrush current when the commutation fails in the hybrid direct current (DC) transmission system,the relationship between the inrush current amplitude and the voltage source converter (VSC) is firstly derived.
MA Wenzhong +5 more
doaj +1 more source
Using non-superconducting fault current limiter as inrush current limiter [PDF]
, 2011 In this paper, inrush current limitation of transformer using a bridge type fault current limiter (FCL) as inrush current limiter is proposed.
Seyedbehzad Naderi (14745067) +2 more
core +2 more sources
Impact of load power factor on sympathetic inrush current [PDF]
, 2016 This paper investigates the impact of load power factor on sympathetic inrush current. Sympathetic inrush current is caused by the voltage drop across the system resistance due to energizing current of the parallel adjacent transformer.
Madani, Seyed M. +5 more
core +1 more source
Application of saturated core transformer as inrush current limiter
e-Prime: Advances in Electrical Engineering, Electronics and EnergyAn inrush current is a transient current that results from a sudden change in the exciting voltage across a transformer's windings. Reducing the inrush current of transformers is desirable due to mechanical stresses and negligent operation of protective ...
Mehrdad Tarafdar-Hagh +5 more
doaj +1 more source
A pre-charging strategy based on composite frequency control for a modular multilevel DC transformer
Energy Reports, 2022 Modular multilevel DC transformers(MMDCTs) have become a research focus in DC grids with different voltage levels based on their advantages of strong expansibility and high voltage levels.
Zhendong Ji +5 more
doaj +1 more source
Deep Underground Science and Engineering, EarlyView.Through shear–tensile creep tests and viscoelastic modeling, the fracture evolution of thick soft protective layers is clarified. Results show thickness‐dependent rheological failure modes that govern four types of roof water inrush, providing a mechanism‐based framework for hazard prediction and control. Abstract In the Jurassic coal‐bearing strata of
Mengnan Liu +4 more
wiley +1 more source
An Analytical Tool for Studying Transformer Inrush Current [PDF]
, 1993 An analytical tool for studying transformer inrush current An analytical tool for studying transformer inrush current is proposed. The existing approaches dwell at length in solving differential equations which do not provide any insight into the ...
S. K. Chakravarthy, C. V. Nayar, E. Vasu
core +1 more source
Energies, 2016 This paper describes the reduced capacity of the inrush current suppressor using a matrix converter (MC) in a large-capacity wind power generation system (WPGS) with two squirrel-cage induction machines (SCIMs). These SCIMs are switched over depending on
Sho Shibata +3 more
doaj +1 more source
Deep Underground Science and Engineering, EarlyView.The fused data extracted from the distributed monitoring system as the data basis, combined with dynamic geological data, are imported into a deep learning model. As the geological conditions of mining and excavation change, the risk of water inrush at the working face is retrieved in real time.
Yongjie Li +4 more
wiley +1 more source