FRA interpretation using numerical indices: State-of-the-art

MH Samimi, S Tenbohlen - International Journal of Electrical Power & …, 2017 - Elsevier
Abstract Frequency Response Analysis (FRA) is an effective diagnostic technique for
detection of mechanical deformations inside a power transformer. The results of previous …

[图书][B] Transformer engineering

SV Kulkarni, SA Khaparde - 2004 - api.taylorfrancis.com
There have been considerable advancements in various aspects of transformer engineering
since the publication of the first edition in 2004. Improvements can be clearly seen in …

Turn‐to‐turn fault monitoring methods in electrical power transformers—State of the art

M Mostafaei, J Faiz, PA Venikar… - … on Electrical Energy …, 2018 - Wiley Online Library
Power transformer is a vital component in the power system, and it must be protected
against various core and winding faults. Turn‐to‐turn fault (TTF) is one of the most common …

Novel calculation method of indices to improve classification of transformer winding fault type, location, and extent

H Tarimoradi, GB Gharehpetian - IEEE Transactions on …, 2017 - ieeexplore.ieee.org
In this paper, disk space variation, radial deformation, short circuit, and axial displacement
as four common transformer winding faults, in different locations and with various extents …

Analysis of statistical methods for assessment of power transformer frequency response measurements

M Tahir, S Tenbholen, S Miyazaki - IEEE Transactions on …, 2020 - ieeexplore.ieee.org
Frequency response analysis (FRA) is a widely accepted diagnostic method to assess the
mechanical integrity of the active parts within a power transformer. Recent studies in the field …

Statistical approach for interpretation of power transformers frequency response analysis results

V Behjat, M Mahvi - IET Science, Measurement & Technology, 2015 - Wiley Online Library
In spite of many research efforts on fault diagnosis using frequency response analysis (FRA)
method, there is still no universally accepted and systematic interpretation technique for …

Application of DIP to detect power transformers axial displacement and disk space variation using FRA polar plot signature

O Aljohani, A Abu-Siada - IEEE Transactions on Industrial …, 2016 - ieeexplore.ieee.org
While frequency response analysis (FRA) technique has been successfully used to assess
the mechanical integrity of active parts within power transformers, it still exhibits some …

A new diagnostic technique for reliable decision-making on transformer FRA data in interturn short-circuit condition

Y Akhmetov, V Nurmanova, M Bagheri… - IEEE Transactions …, 2020 - ieeexplore.ieee.org
Interpreting results of a transformer frequency response analysis (FRA) is quite challenging.
One of the common methods to summarize FRA data is to employ statistical indicators (SIs) …

Frequency response analysis for three-phase star and delta induction motors: Pattern recognition and fault analysis using statistical indicators

SM Al-Ameri, Z Abdul-Malek, AA Salem, ZA Noorden… - Machines, 2023 - mdpi.com
This paper presents a new investigation to detect various faults within the three-phase star
and delta induction motors (IMs) using a frequency response analysis (FRA). In this regard …

Sensitivity analysis of different components of transfer function for detection and classification of type, location and extent of transformer faults

H Tarimoradi, H Karami, GB Gharehpetian… - Measurement, 2022 - Elsevier
Frequency response analysis is one of the best methods to diagnose mechanical defects in
the power transformer winding. In this paper, sensitivity analysis of four components of the …