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α-Power transformed transformed power function distribution with applications [PDF]

Heliyon, 2021
By standard transformation of a random variable, we obtained a partially bounded one-parameter version of the bounded three-parameter power function distribution by Saran and Pandey (2004) which we called the Transformed Power Function (TPF) distribution and based on an alpha-power transformation method due to Mahdavi and Kundu (2017) we generalized ...
Idika E. Okorie, Johnson Ohakwe, Bright O. Osu, Chris U. Onyemachi   +3 more
openaire   +3 more sources

Ensuring timely repair of power transformers based on data of complex diagnostics [PDF]

E3S Web of Conferences, 2021
Timely diagnosis of power transformers is an essential component of ensuring reliable and safe operation of power stations and substations, on which the reliability of the power system depends. Detection of defects in the initial stage allows to maintain
Sultanov Makhsud, Zenina Elena, Shamigulov Peter, Lunenko Valentina, Zhelyaskova Olga   +4 more
doaj   +1 more source

Studying the thermal condition of an automated 6 (10) Kv electric power fiscal metering location

Известия высших учебных заведений: Проблемы энергетики, 2021
THE PURPOSE. Examine the problem of reliable functioning of small electric power fiscal metering locations (EPFML) based on unconventional instrument current and voltage converters (Rogowski coil and resistive divider).
E. E. Gotovkina, A. A. Yablokov, N. N. Smirnov, A. V. Panashatenko, V. D. Lebedev, O. A. Dobryagina   +5 more
doaj   +1 more source

Influence of Cooling Management to Transformer Efficiency and Ageing

Energies, 2023
Transformer efficiency is a key concern for both transformer operators and regulators, particularly with regards to new transformers. Cooling is a critical factor in preventing overheating and controlling the ageing of transformer insulation.
Zarko Janic, Nebojsa Gavrilov, Ivica Roketinec   +2 more
doaj   +1 more source

Integrated Multilevel Production Planning Solution According to Industry 5.0 Principles

Applied Sciences, 2023
This paper presents the development and implementation of Integrated Multilevel Planning Solution (IMPS) a solution adhering to Industry 4.0 and 5.0 standards.
Maja Trstenjak, Petar Gregurić, Žarko Janić, Domagoj Salaj   +3 more
doaj   +1 more source

Lifecycle cost forecast of 110 kV power transformers based on support vector regression and gray wolf optimization

Alexandria Engineering Journal, 2021
Power transformers are an important asset of power companies. To improve the economic benefits of power companies, it is of great significance to accurately predict the lifecycle cost of each power transformer.
Mingming Du, Yuqi Zhao, Chaojun Liu, Zhu Zhu   +3 more
doaj   +1 more source

Influence of the type of load graphs on the service life transformers 33/11 Kv at substation "Kabun-1" (Syrian Arab Republic)

Известия высших учебных заведений: Проблемы энергетики, 2023
Power transformers are one of the main components of power supply systems needed to reliably supply electricity to consumers. As we know, the value of the allowable load of transformers is determined by the value of the allowable heating of structural ...
E. Yu. Abdullazyanov, E. I. Gracheva, A. Alzakkar, S. Valtchev, N. Mestnikov   +4 more
doaj   +1 more source

Digital protection of electrical equipment in railway transport [PDF]

E3S Web of Conferences, 2023
In this scientific study, an analysis of the modernization of the digital protection of AC traction substation electrical equipment in operation, in particular power transformers, the implementation of the basic provisions for the implementation of ...
Turdibekov Komolbek, Rustamov Dilshod, Xalikov Sarvar   +2 more
doaj   +1 more source

Using the Analysis of the Gases Dissolved in Oil in Diagnosis of Transformer Bushings with Paper-Oil Insulation—A Case Study

Energies, 2020
The article describes a case study when the voltage collapse during lightning impulse tests of new power transformers was noticed and when the repeated tests finished with a positive result.
Tomasz Piotrowski, Pawel Rozga, Ryszard Kozak, Zbigniew Szymanski   +3 more
doaj   +1 more source

Large-Power Transformers: Time Now for Addressing Their Monitoring and Failure Investigation Techniques

Energies, 2022
Several review studies exist in the literature about monitoring, fault detection, and diagnosis of power transformers. However, they are general approaches in terms of power transformers.
Jonathan Velasco Costa, Diogo F. F. da Silva, Paulo J. Costa Branco   +2 more
doaj   +1 more source