Results 1 to 10 of about 350,104 (214)

High-Frequency Modeling of a Three-Winding Power Transformer Using Sweep Frequency Response Analysis [PDF]

Energies, 2021
A power transformer is an essential device for stable and reliable power transfer to customers. Therefore, accurate modeling of transformers is required for simulation-based analysis with the model.
Yeunggurl Yoon, Yongju Son, Jintae Cho, SuHyeong Jang, Young-Geun Kim, Sungyun Choi   +5 more
doaj   +3 more sources

Sweep frequency response analysis of three-phase induction motors using high frequency circuit model

e-Prime: Advances in Electrical Engineering, Electronics and Energy
Three-phase induction motor (TPIM) is one of the most important and expensive component in many industries. If a failure happens in service, the impact can be far reaching. Resulting in prolonged downtimes and expensive repairs.
Rizwanullah Khan, Mohd Fairouz Mohd Yousof, Salem Al-Ameri, Rahisham Abd-Rahman, Norhafiz Azis   +4 more
doaj   +3 more sources

Detection of Transformer Faults: AI-Supported Machine Learning Application in Sweep Frequency Response Analysis

Energies
In this study, we discussed how the increasing demand for electrical energy results in higher loads on transformers, creating the need for more effective testing and maintenance methods.
Hakan Çuhadaroğlu, Yılmaz Uyaroğlu
doaj   +3 more sources

Sweep Frequency Response Analysis (SFRA): Examples after failures in power transformers and factors that have influence on the recorded frequency responses [PDF]

Zbornik Radova: Elektrotehnički Institut "Nikola Tesla"
Sweep Frequency Response Analysis (SFRA) represents an unconventional method used in case of recording the frequency response of transformer windings. The method has found application in the analysis of geometry of power transformer windings in order to ...
Milić Momčilo, Jovanović Đorđe, Dimitrijević Marko   +2 more
doaj   +2 more sources

Deformations in Power Transformers by Sweep Frequency Response Analysis and a Sample Field Study

European Journal of Technic, 2023
Power transformers are expensive pieces of electrical equipment that are used to connect transmission and distribution networks. Power transformers are inspected and tested on a regular basis throughout production, shipment, installation, and operation. There are several ways for determining the mechanical integrity of power transformers.
Cenk GEZEGİN, Orhan Cengiz USTA
openaire   +2 more sources

Sweep Frequency Response Analysis for Assessment Deformation Core at Power Transformer

Journal of Engineering and Scientific Research
SFRA (Sweep Frequency Response Analysis) is a transportation test where one of the purposes of this test is to ensure that the core of the power transformer does not shift due to the journey from the factory to the field. The SFRA testing is divided into 4 frequency range areas from 20 Hz to 20 MHz and this research is focused on the frequency range ...
Wilarso Wilarso, Asep Saepudin, Hilman Sholih, Asep Dharmanto   +3 more
openaire   +2 more sources

A Fast Frequency Sweep – Green’s Function Based Analysis of Substrate Integrated Waveguide [PDF]

Radioengineering, 2012
In this paper, a fast frequency sweep technique is applied to the analysis of Substrate Integrated Waveguides performed with a Green’s function technique.
E. Abaei, G. Amendola, E. Arnieri, S. Costanzo, E. Mehrshahi   +4 more
doaj   +2 more sources

The study of sweep frequency response analysis for inspecting the performance of transformer

Journal of Physics: Conference Series, 2020
Abstract Transformer had been widely used for supplying electric power to many motors, such as electric pump, fans, or conveyors. The motor voltage may vary that is depending on its power and speed between one to another motor. The load needs the transformer which generate the proper voltage.
M A Habibi, A A Zain, F A P Sudarto, A Kusumawardana, S Wibawanto, L Gumilar, H Wicaksono   +6 more
openaire   +2 more sources

Theoretical considerations while applying sweep frequency response analysis method in determining the interwinding capacitance of power transformers at higher frequencies

Engineering Reports, 2019
This paper systematically investigates on theoretical and practical aspects of frequency response analysis method in evaluating the dielectric integrity of transformers.
Saravanakumar Arumugam
doaj   +2 more sources

Sweep frequency response analysis based diagnosis of shorts within transformer windings

IET Generation, Transmission & Distribution, 2017
Sweep frequency response analysis (SFRA) is a diagnostic technique which can identify faults within transformers. Though SFRA approaches are used to identify faults, their effectiveness in discriminating two same level faults at two different locations within transformer is not much analysed and reported. Experiments were carried out on a 1 kVA, single
Rajesh Rajamani, Muthaiah Rajappa, Balasubramanian Madanmohan   +2 more
openaire   +2 more sources