Fast GRNN-based method for distinguishing inrush currents in power transformers

S Afrasiabi, M Afrasiabi, B Parang… - IEEE Transactions …, 2021 - ieeexplore.ieee.org
Differential protection, as the key protection element in the power transformers, has always
been threatened with sending false trips subjected to external transient disturbances. As a …

Online detection of inter-turn winding faults in single-phase distribution transformers using smart meter data

K Ashok, D Li, N Gebraeel… - IEEE Transactions on …, 2021 - ieeexplore.ieee.org
Turn-to-turn faults between primary windings due to insulation degradation are a major
cause of distribution transformer failure, and occur due to high levels of stress such as …

Diagnosis of interturn faults of voltage transformer using excitation current and phase difference

P Li, P Guo - Engineering Failure Analysis, 2022 - Elsevier
The interturn faults of voltage transformers will cause inaccurate data collection, wrong
decision and wrong action of relay protection in power system. It is necessary to put forward …

Transformer fault type discrimination based on window calculation method and frequency response analysis

A Vosoughi, MH Samimi - Measurement, 2022 - Elsevier
Frequency response analysis (FRA), one of the methods for the diagnosis of transformer
mechanical faults, is improving quickly to result in easier fault detection. Recently, the …

Efficiency and cost based multi-optimization and thermal/electromagnetic analyses of 3-phase dry-type transformer

B Esenboga, T Demirdelen - IETE Journal of Research, 2022 - Taylor & Francis
Dry-type transformers are one of the most significant devices used in the conversion,
transmission and management process of the electricity. In practice, the electrical energy …

Analysis and mitigation of the impact of electric vehicle charging on service disruption of distribution transformers

A Visakh, MP Selvan - Sustainable Energy, Grids and Networks, 2023 - Elsevier
The transition to electric mobility could overload distribution transformers to unprecedented
levels. Sustained overloads produce excessive heat within the transformer and hasten …

Analysis of interturn short circuit in regulating winding of power transformer based on field-circuit coupling

L Fei, Z Ma, L Cai, D Zhou, X Shu, Z Liao… - Frontiers in Energy …, 2024 - frontiersin.org
The interturn short circuit fault is one of the common faults in power transformers. At present,
research on interturn short circuit faults focuses on high, medium, and low voltage windings …

Application Of Fractional-Order Integral Transforms In The Diagnosis Of Electrical System Conditions

HM Cortés Campos, JF Gómez-Aguilar… - Fractals, 2024 - World Scientific
This paper proposes a methodology for the diagnosis of electrical system conditions using
fractional-order integral transforms for feature extraction. This work proposes three feature …

Measurement of residual flux density in the single-phase transformer by applying DC voltage

Y Ren, Y Wang, C Liu - Journal of Magnetism and Magnetic Materials, 2024 - Elsevier
The inrush current causes many adverse effects on electrical equipment. One of the reasons
for inrush current is residual flux. When a no-load transformer is energized and the closing …

[HTML][HTML] Анализ существующих разновидностей защит от однофазных замыканий на землю и условия их применения

АА Андреев - Вестник Самарского государственного …, 2021 - cyberleninka.ru
Проблема определения однофазного замыкания на землю в сетях с изолированным и
компенсированным режимом нейтрали до сих пор актуальна. Согласно существующим …