Experimental studies on monitoring and metering of radial deformations on transformer HV winding using image processing and UWB transceivers
S Mortazavian, MM Shabestary… - IEEE Transactions …, 2015 - ieeexplore.ieee.org
In this paper, a novel method based on image processing is proposed for detecting the
presence and location of mechanical deformations on an actual power transformer winding …
presence and location of mechanical deformations on an actual power transformer winding …
Feasibility study on simultaneous detection of partial discharge and axial displacement of HV transformer winding using electromagnetic waves
H Karami, H Tabarsa, GB Gharehpetian… - IEEE Transactions …, 2019 - ieeexplore.ieee.org
Recently, axial displacement detection of transformer winding has been performed using
synthetic-aperture radar (SAR) imaging, as an online method, in ultra-wideband frequency …
synthetic-aperture radar (SAR) imaging, as an online method, in ultra-wideband frequency …
Proposed methodology for online frequency response analysis based on magnetic coupling to detect winding deformations in transformers
Y Cheng, J Bi, W Chang, Y Xu, X Pan, X Ma… - High …, 2020 - Wiley Online Library
Frequency response analysis is widely used as a method for the offline diagnosis of winding
deformations in power transformers. To apply it to a working transformer, people need to …
deformations in power transformers. To apply it to a working transformer, people need to …
GLRT-based mitigation of partial discharge effect on detection of radial deformation of transformer HV winding using SAR imaging method
H Karami, GB Gharehpetian, Y Norouzi… - IEEE Sensors …, 2016 - ieeexplore.ieee.org
Online and on time detection of defects leads to technical and economic merits for networks.
Recently, an online method has been introduced for the radial deformation detection of …
Recently, an online method has been introduced for the radial deformation detection of …
Diagnosing axial displacement in an actual, single, isolated transformer winding: Experimental results
P Mukherjee, L Satish - IEEE Transactions on Dielectrics and …, 2017 - ieeexplore.ieee.org
Localization and severity assessment of an axial displacement occurring in an actual
transformer winding is reported. Axial displacements considered in this paper are still in their …
transformer winding is reported. Axial displacements considered in this paper are still in their …
Experimental study on elimination of partial discharge effect on detection of radial deformation of high voltage transformer winding using electromagnetic waves
H Karami, GB Gharehpetian, Y Norouzi… - … on Environment and …, 2018 - ieeexplore.ieee.org
Online detection of defects in power transformers attracts attention of researchers because
of its technical and economic advantages. Recently, radial deformation detection has been …
of its technical and economic advantages. Recently, radial deformation detection has been …
Determination of transformer HV winding axial displacement extent using hyperbolic method–a feasibility study
H Rahbarimagham, H Karami… - IET Electric Power …, 2019 - Wiley Online Library
In recent years, ultra‐wideband (UWB) systems have been proposed for online monitoring of
power transformers. This study aims at a new UWB‐based method to determine the axial …
power transformers. This study aims at a new UWB‐based method to determine the axial …
Design and implementation of dielectric windows for detection of radial deformation of HV transformer winding using radar imaging
The synthetic aperture radar (SAR) imaging method has been recently proposed for online
radial deformation detection of high voltage transformer windings. In this method …
radial deformation detection of high voltage transformer windings. In this method …
Limitations of partial discharge de-noising of power transformer using adaptive singular value decomposition
H Karami, GB Gharehpetian - 2019 International Power System …, 2019 - ieeexplore.ieee.org
De-noising of partial discharge (PD) is the most important task in PD detection and
localization for power transformers and power cables. The performance of adaptive singular …
localization for power transformers and power cables. The performance of adaptive singular …
Calculation of electrodynamic force with winding short-circuit in power transformers.
XU Yong-ming, GUO Rong… - Electric Machines & …, 2014 - search.ebscohost.com
According to problem of winding deformation and insulation damage caused by
electrodynamic force in short-circuit condition for power transformer, the axial and radial …
electrodynamic force in short-circuit condition for power transformer, the axial and radial …