On the effects of lamination artificial faults in a 15 kVA three-phase transformer core

E Altayef, F Anayi, MS Packianather, O Kherif - IEEE Access, 2022 - ieeexplore.ieee.org
Cutting and punching of the steel used in power transformer core may cause edge burrs.
This, along with the degradation of the lamination insulation, can lead to interlaminar short …

Power consumption mode investigation of a transformer with asymmetric load under the condition of active parts temperature change

I Reva, O Bialobrzheskyi, O Todorov… - … on Modern Electrical …, 2021 - ieeexplore.ieee.org
Nonlinear load causes leakage of non-sinusoidal currents and voltages in the transformer,
that carrying a spectrum of higher harmonics violate the thermal balance of the transformer …

Use of Fourier transform to detect the relationship between voltage and current distortion of the transformer with damage to the winding

I Reva, O Bialobrzheskyi… - 2021 IEEE International …, 2021 - ieeexplore.ieee.org
Detection damage to power transformers of substations during their operation is an urgent
task, given the intellectualization of the power supply system (SmartGrid). This allows …

Single-Phase Transformer Active and Reactive Power Distribution with the Inter-tum Fault Conditions and the Eddy Currents Increase

I Reva, O Bialobrzheskyi… - 2020 IEEE Problems of …, 2020 - ieeexplore.ieee.org
The problem of power transformers diagnostics with damage is an research important topic,
because it contributes to the rational capitalization in power systems and power plants …

[PDF][PDF] ACCOUNTING FOR A POSITIVE, NEGATIVE AND ZERO SEQUENCES POWER IN A THREE-PHASE UNBALANCED ELECTRICAL SYSTEM.

O Bialobrzheskyi, A Postil, S Yakimets - Scientific Bulletin of National …, 2023 - nvngu.in.ua
Purpose. Based on the instantaneous electrical power of a threephase asymmetric system of
sinusoidal periodic current, to determine positive, negative, zerosequences active and …

Three-phase core-type transformer model investigation taking into account hysteresis phenomena in asymmetric load mode

I Reva, O Bialobrzheskyi, O Todorov… - 2021 IEEE 2nd KhPI …, 2021 - ieeexplore.ieee.org
Transformer modeling as electrical and power equipment is important engineering research
and design activities. Most of the known concepts focus on modeling a 3-phase or multi …

Науковий вісник НГУ

ОВ Бялобржеський, СМ Якимець - nvngu.in.ua
Мета. Обґрунтування хибності використання поняття «повної потужності» для
чотириполюсників у колах змінного синусоїдального струму на підставі балансу …

Науковий вісник НГУ

O Bialobrzheskyi, S Yakimets - nvngu.in.ua
Purpose. Development of a method for determining the cable line substitution scheme
parameters based on the components of its instantaneous power. Methodology …