Results 71 to 80 of about 10,045 (225)

Identificación de la corriente inrush en un transformador utilizando análisis modal [PDF]

, 2016
En este artículo se describe un método para identificar corrientes inrush en transformadores de potencia con la intención de inhibir la operación de la protección diferencial durante condiciones transitorias. El método propuesto utiliza el análisis modal
Andrade Soto, Manuel Antonio, Esponda Hernández, Héctor, Vázquez Martínez, Ernesto   +2 more
core  

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, DR.N.M.LOKHANDE, PROF. A. C. GIDDE   +2 more
openaire   +2 more sources

Characterization of the permeability evolution of hard and soft rocks under hydro‐mechanical coupling conditions

Deep Underground Science and Engineering, Volume 5, Issue 1, Page 220-232, March 2026.
The permeability variation of rocks during complete stress–strain processes was investigated. A mathematical model describing the influence of rock damage on permeability was constructed. The permeability–stress relationship between soft rock and hard rock was proposed.
Zhen Huang, Jian Yu, Yun Wu, Cong Gong, Xiaozhao Li, Kui Zhao, Dickson Moyo   +6 more
wiley   +1 more source

An innovative harmonic‐based approach for inrush current detection in low‐loss transformers

IET Generation, Transmission & Distribution
Transformer inrush current occurs due to the saturation of magnetic core. The magnetic characteristic of the core directly affects the inrush current waveform. Second harmonic and higher‐order harmonics are present in the inrush harmonic spectrum.
Saeed Sanati, Seyed‐Alireza Ahmadi, Majid Sanaye‐Pasand   +2 more
doaj   +1 more source

Analysis and engineering calculation of excitation inrush current characteristics of high voltage built-in high impedance transformer

Diance yu yibiao
This paper presents a calculation scheme of inrush current of high voltage built-in high impedance transformer which takes into account the nonlinear changes of remanence and excitation inductance.
RONG Chunyan, HU Shiyao, LI Teng, SU Zhonghuan, CHENG Rong, WANG Guijuan   +5 more
doaj   +1 more source

Prediction of switching transients in high voltage air-insulated substations [PDF]

, 2009
Describes the process of prediction of switching transients in high voltage air-insulated ...
Judd, M.D., Musa, B.U., Siew, W.H.
core  

Investigations into the transformer inrush current problem

Nigerian Journal of Technology, 2018
A transformer being energised may draw a large transient current from the grid supply, resulting in a temporary voltage dip at the point of connection (POC) where customers are connected. The voltage dip is dependent upon the magnitude of the transformer inrush current.
Ekwue, A.O., Rawn, B
openaire   +3 more sources

Data‐driven analysis of the spatial dependence of grouting efficiency during tunnel excavation

Deep Underground Science and Engineering, Volume 5, Issue 1, Page 106-115, March 2026.
Prediction of grouting efficiency using machine learning is enhanced by adopting a training strategy that accounts for the grouting process across multiple rounds. Abstract Grouting with water–cement mixtures is the most widely used and cost‐effective method for managing excess water inflow during tunnel construction.
Huaxin Liu, Xunchang Fei, Wei Wu
wiley   +1 more source

Perhitungan Dan Analisis Inrush Current Pada Transformator Berbasis Parameter Transformator [PDF]

, 2018
Inrush current adalah arus transient dengan amplitude tinggi yang terjadi pada saat transformator daya diberikan power (dienergized).  Besar amlitudonya bisa 5.6  kali arus normalnya., waktu transient ini kurang dari 60 ms.
Arief, M. (Mohammad)
core   +1 more source

Capacity Optimization and Hierarchical Robust Control Verification of Wind–Solar–Diesel Hybrid Microgrid Based on Improved Multi‐Objective Grey Wolf Algorithm

Engineering Reports, Volume 8, Issue 3, March 2026.
To address high‐altitude power transmission challenges, a composite controller was developed to suppress strong wind interference, demonstrating the effectiveness of hierarchical control in complex dynamic systems. Hardware‐in‐the‐loop experiments verified the robustness of the control algorithm, providing methodological support for developing ...
Shaofeng Bai, Jun Zhong
wiley   +1 more source