Results 21 to 30 of about 36,573 (293)

Digital protection of electrical equipment in railway transport [PDF]

open access: yesE3S 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   +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

open access: yesEnergies, 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   +3 more
doaj   +1 more source

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

open access: yesEnergies, 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   +2 more
doaj   +1 more source

Ecological assessment of noise impact of dry transformer substations on the environment [PDF]

open access: yesE3S Web of Conferences, 2021
At present, special attention is paid to assessing the negative impact of power facilities on the environment, including the impact of noise generated by power equipment.
Barseghyan Sarkis   +2 more
doaj   +1 more source

Analysis of diagnostic methods and functional state monitoring of power oil transformers in electrical substations [PDF]

open access: yesE3S Web of Conferences, 2019
In this paper, we analyze the methods of diagnosis and control the functional state of power oil transformers in electrical substations. Oil transformers are the most efficient converters of electrical energy, which is reflected in a higher efficiency in
Lankin Anton   +2 more
doaj   +1 more source

Development of a simulation model for assessing the technical condition of transformers exploited in hydroelectric stations [PDF]

open access: yesE3S Web of Conferences, 2023
Supplying consumers with continuous electricity is one of the urgent problems of today. The main part of electricity is produced by hydroelectric stations.
Yusupov Dilmurod   +6 more
doaj   +1 more source

Optical sensors for power transformer monitoring: A review

open access: yesHigh Voltage, 2021
Power transformers play a vital role in power transmission systems from the energy source to the consumption center. In situ diagnostics of the performance of power transformers provides a variety of benefits to ensure reliable electricity transmission ...
Guoming Ma   +6 more
doaj   +1 more source

Comparative Analysis of the Results of Diagnostic Measurements with an Internal Inspection of Oil-Filled Power Transformers

open access: yesEnergies, 2019
This article presents a description of four independent case studies concerning situations when power transformers were directed to internal inspection. This inspection was the result of a specific case of a routine diagnostic procedure that was carried ...
Tomasz Piotrowski   +2 more
doaj   +1 more source

ANALYSIS OF OPTIMUM OPERATING MODES OF POWER TRANSFORMERS UNDER OPERATING CONDITIONS

open access: yesElectrical engineering & Electromechanics, 2016
Purpose. The study of parallel operation optimal modes of transformer equipment for a variety of operating conditions: same or different types of transformers, with or without reactive power flows. Methodology.
I. V. Khomenko   +2 more
doaj   +1 more source

Effect of GIC Neutral Blocking Devices (NBDs) on Power Network Ferroresonance in Malaysia

open access: yesIEEE Access, 2022
Geomagnetic disturbance (GMD) arises during space weather and solar activity can result in geomagnetically induced current (GIC) flow in the grounded power transformers in the power network.
Zmnako Mohammed Khurshid   +3 more
doaj   +1 more source

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