Results 81 to 90 of about 2,611 (226)

Transformer inrush current harmonics influence analysis [PDF]

, 2017
Problem koji se analizirao u ovom radu je utjecaj harmonijskih članova u struji uklopa kod uklapanja trofaznih transformatora. Navedeni su harmonijski članovi koji su važni za prepoznavanje nastanka pojave struje uklopa za ispravan rad zaštitnih releja ...
Marciuš, Jurica
core  

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

Histogram and cosine similarity based magnetizing inrush current identification for main transformer in photovoltaic power station

Diance yu yibiao
The normal operation of the main transformer in the photovoltaic power station is the basis for the power generation output, however, the magnetizing inrush current may lead the differential protection of the transformer to malfunction.
LUAN Yunfei, ZHANG Luliang, JI Tianyao, LI Hao, MO Chun   +4 more
doaj   +1 more source

Investigating Breathing Dynamics of a 110 kV Oil‐Immersed Transformer Using Thermal‐Fluid‐Structure Interaction Modelling

High Voltage, Volume 11, Issue 3, Page 668-680, June 2026.
ABSTRACT The breathing system of an oil‐immersed transformer is of vital importance for maintaining equilibrium between internal and external pressures, with any malfunction potentially disrupting the transformer's stable operation. This study develops a thermal–fluid–structure interaction (TFSI) model to simulate the breathing phenomenon in a 110 kV ...
Lujia Wang, Guangyi Chen, Dong Shang, Xiang Zhang, Haitao Yang, Jianwen Zhang   +5 more
wiley   +1 more source

Synchronous Study of Ferroresonance and Inrush Current Phenomena and their Related Reasons in Ground Power Networks [PDF]

Energizing the power transformers usually results in flowing very high inrush currents. This harmful current can be minimized using controlled switching and considering the value of residual flux.
Ghaderi, Mohammad Ali, Akrami, Amin, Ghadi, Saeed Rostami   +2 more
core  

A Comprehensive Review of Intelligent Fault Diagnosis and Resilient Fault‐Tolerant Control in the Design of Modern Modular Multilevel Converters

Engineering Reports, Volume 8, Issue 5, May 2026.
This review evaluates advanced intelligent fault diagnosis and resilient fault‐tolerant control strategies for modular multilevel converters (MMCs). It highlights how integrating machine learning with robust control architectures enhances reliability and operational continuity, providing a roadmap for developing more resilient, self‐healing power ...
Muhammad Haris Saleem, Arslan Ahmed Amin, Zuhair A. Alqarni, Umair Shahzad   +3 more
wiley   +1 more source

Inrush current of three-phase transformer [PDF]

, 2006
katedra: KEL; přílohy: 2 DVD ROM; rozsah: 80 s.Diplomová práce (DP) je zaměřena na měření maxim zapínacího proudu (ZP) třífá-zových transformátorů v závislosti na úhlu připnutí, počáteční magnetizaci jednotlivých částí jádra a zejména skupinovém zapojení
Nový, Jan
core   +1 more source

Studi Karakteristik Dampak Parameter Sistem Terhadap Inrush Current Berbasis Transformasi Wavelet [PDF]

, 2022
Inrush current merupakan arus yang muncul ketika transformator daya pertama kali di-energize dan bernilai sangat tinggi. Dalam waktu yang lama dan frekuensi yang tinggi, suatu transformator dapat memendek umurnya karena inrush current menimbulkan suhu ...
Rahmaditya, Vito
core  

Large‐Scale Hydrogen Storage: Surface and Subsurface Challenges

ChemBioEng Reviews, Volume 13, Issue 2, April 2026.
This review examines underground hydrogen storage with emphasis on the interaction between surface facilities and subsurface reservoirs. Variable renewable hydrogen requires compression, buffering, and purification before injection, while subsurface processes influence wellhead pressure, temperature, and composition.
Mostafa Montazeri, Alireza Salmachi, Manouchehr Haghighi, Tara Hosseini   +3 more
wiley   +1 more source

Design Analysis of a Seven‐Level Active Neutral Point Clamped (ANPC) Inverter Based on Switched Technique

Radio Science, Volume 61, Issue 4, April 2026.
Abstract A novel switch‐based Active‐Neutral‐Clamped (ANPC) inverter for low DC‐link voltage is presented in this paper. The proposed ANPC topology minimizes switches and achieves 1.5 times better voltage gain than standard inverters. The main objective of this design is to reduce active switches in the inverter to increase system efficiency.
Shujaat Ali, Yanbo Che, Sathesh Ammaiappan, Mubashar Javed, Yazeed Mohammad Qasaymeh, Mohammad Alibakhshikenari   +5 more
wiley   +1 more source