Journal ArticleDOI
Statistical Techniques for Partial-Discharge Location in Transformer Windings
V. Jeyabalan,U. Usa +1 more
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TLDR
In this article, statistical techniques are used to locate the partial discharge in transformer windings, and the experimental studies are performed on a 22-kV prototype interleaved winding to prove the feasibility of the methods.Abstract:
To locate the partial discharge in transformer windings, statistical techniques are proposed. The experimental studies are performed on a 22-kV prototype interleaved winding to prove the feasibility of the methods.read more
Citations
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Journal ArticleDOI
Partial Discharge Localization Inside Transformer Windings via Fiber-Optic Acoustic Sensor Array
TL;DR: In this paper, a fiber-optic acoustic sensor array is designed and installed into one phase winding, which is from a real 35 kV transformer, for accurate online partial discharge (PD) detection.
Journal ArticleDOI
Transformer Winding Fault Diagnosis Using Vibration Image and Deep Learning
Kaixing Hong,Ming Jin,Hai Huang +2 more
TL;DR: A novel feature extraction method based on vibration analysis is proposed, which converts the vibration monitoring data with load information into a vibration image, which is then used to classify the images belong to different classes.
Journal ArticleDOI
Partial Discharge Localization in a Power Transformer: Methods, Trends, and Future Research
Mithun Mondal,G. B. Kumbhar +1 more
TL;DR: The techniques of PD localization used so far are compared, and their advantages and limitations are pointed out, to help develop the future technologies for PD localization thereby avoiding insulation damage.
Journal ArticleDOI
Localization of Partial Discharges Inside a Transformer Winding Using a Ladder Network Constructed From Terminal Measurements
TL;DR: In this paper, the authors employed terminal measurements to construct a physically realizable ladder network, where simulated responses obtained from the ladder network for signals of known pulse-widths at all locations were used as reference data.
Journal ArticleDOI
Optimum acoustic sensor placement for partial discharge allocation in transformers
Arsalan Hekmati,Rasoul Hekmati +1 more
TL;DR: A method has been proposed for calculation of position measurement sensitivity for different PD origins within transformer tank, and the optimum arrangement of AE sensors has been chosen as the configuration yielding lowest error in the PD localisation.
References
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Book
Statistical techniques for high-voltage engineering
TL;DR: This book sets out statistical methods that can be used in the preparation, execution, evaluation and interpretation of experiments of a random nature, and contains detailed sections on breakdown statistics of typical electrical insulating arrangements.
Journal ArticleDOI
Frequency domain correlation technique for PD location in transformer winding
V. Jeyabalan,S. Usa +1 more
TL;DR: In this article, the limitation of time domain correlation method in locating partial discharge (PD) in transformer windings is found out, and frequency domain correlation with Gram Schmidt orthogonalization is proposed.
Journal ArticleDOI
Virtual Instrument for Lightning Impulse Tests
A. Palani,V. Jayashankar +1 more
TL;DR: In this paper, an objective formulation of the impulse analysis problem from a signal analysis viewpoint is proposed, where the winding response is quintessentially that of a deterministic network to a finite energy signal, with breakdown and partial discharge being inherently nonlinear events.
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Frequency domain correlation technique for PD location in transformer winding
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