Frequency response analysis (FRA) of transformers as a tool for fault detection and location: A review
RK Senobari, J Sadeh, H Borsi - Electric power systems research, 2018 - Elsevier
Power transformers are one of the most important components of the electrical power
networks. A wide range of mechanical and electrical stresses in addition to the aging could …
networks. A wide range of mechanical and electrical stresses in addition to the aging could …
Diagnostic measurements for power transformers
S Tenbohlen, S Coenen, M Djamali, A Müller… - Energies, 2016 - mdpi.com
With the increasing age of the primary equipment of the electrical grids there exists also an
increasing need to know its internal condition. For this purpose, off-and online diagnostic …
increasing need to know its internal condition. For this purpose, off-and online diagnostic …
Classifying transformer winding deformation fault types and degrees using FRA based on support vector machine
As an important part of power system, power transformer plays an irreplaceable role in the
process of power transmission. Diagnosis of transformer's failure is of significance to …
process of power transmission. Diagnosis of transformer's failure is of significance to …
Transformer winding fault diagnosis using vibration image and deep learning
K Hong, M **, H Huang - IEEE Transactions on Power Delivery, 2020 - ieeexplore.ieee.org
Winding condition assessment is an essential task for operating transformers, and the
vibration method provides a low-cost and non-intrusive approach. In this paper, a novel …
vibration method provides a low-cost and non-intrusive approach. In this paper, a novel …
Estimating power transformer high frequency model parameters using frequency response analysis
Frequency response analysis (FRA) has become a widely accepted technique by worldwide
utilities to detect winding and core deformations within power transformers. The main …
utilities to detect winding and core deformations within power transformers. The main …
Improved power transformer winding fault detection using FRA diagnostics–part 1: axial displacement simulation
Frequency response analysis (FRA) has become a widely accepted tool to detect power
transformer winding deformation due to the development of FRA test equipment. Because …
transformer winding deformation due to the development of FRA test equipment. Because …
Fault diagnosis of transformer windings based on decision tree and fully connected neural network
ZH Li, Y Zhang, A Abu-Siada, X Chen, Z Li, Y Xu… - Energies, 2021 - mdpi.com
While frequency response analysis (FRA) is a well matured technique widely used by
current industry practice to detect the mechanical integrity of power transformers …
current industry practice to detect the mechanical integrity of power transformers …
FRA interpretation using numerical indices: State-of-the-art
Abstract Frequency Response Analysis (FRA) is an effective diagnostic technique for
detection of mechanical deformations inside a power transformer. The results of previous …
detection of mechanical deformations inside a power transformer. The results of previous …
A review of frequency response analysis methods for power transformer diagnostics
Power transformers play a critical role in electric power networks. Such transformers can
suffer failures due to multiple stresses and aging. Thus, assessment of condition and …
suffer failures due to multiple stresses and aging. Thus, assessment of condition and …
ANN and cross-correlation based features for discrimination between electrical and mechanical defects and their localization in transformer winding
AJ Ghanizadeh… - IEEE Transactions on …, 2014 - ieeexplore.ieee.org
In this paper, a new method to discriminate between mechanical defects and electrical
faults, as two major faults in power transformer windings, is proposed. In the first step, the …
faults, as two major faults in power transformer windings, is proposed. In the first step, the …