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IEEE International Conference on Condition Monitoring and Diagnosis, 2022
Medium Voltage (MV) electrical assets are no longer just distribution networks, since also electrified transportation is moving towards kV, if not tens on kV, of target operating voltage and renewable power generation, being largely distributed, is also ...
G. Montanari +5 more
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Medium Voltage (MV) electrical assets are no longer just distribution networks, since also electrified transportation is moving towards kV, if not tens on kV, of target operating voltage and renewable power generation, being largely distributed, is also ...
G. Montanari +5 more
semanticscholar +1 more source
Condition Assessment of Power Transformers by UHF PD Measurements
IEEE International Conference on Condition Monitoring and Diagnosis, 2022Partial discharge (PD) measurement has been established to detect local defects in the oil/paper insulation. Partial discharges can be measured by either electrical PD measurements according to IEC 60270 or by electromagnetic measurements in the ultra ...
S. Tenbohlen, C. P. Beura, M. Siegel
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Performance Evaluation of AI-based Algorithms for Condition Assessment of Power Components
IEEE International Conference on Condition Monitoring and Diagnosis, 2022This study compares the performance of different artificial intelligence (AI) based algorithms/ classifiers used for partial discharge (PD) classification during insulation diagnostics in power components. During PD measurements, a considerable amount of
H. Kumar, M. Shafiq, K. Kauhaniemi
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Condition Assessment of Aged Transformer Oil Using Photoluminescence-Based Features
2021 IEEE 5th International Conference on Condition Assessment Techniques in Electrical Systems (CATCON), 2021Optical spectroscopy techniques were presented recently as a condition assessment tool for power transformer insulation. They are simple, non-destructive and inexpensive.
Abdelrahman M. Alshehawy +2 more
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Condition Monitoring of Power Electronic Converters: Present Status and Key Challenges
2021 IEEE 5th International Conference on Condition Assessment Techniques in Electrical Systems (CATCON), 2021The reliability and life of a device can be improved by an effective condition monitoring technique. A Power Electronic Converter (PEC) consists of components, such as IGBTs, capacitors, and gate-drive circuits.
Thakura Prasad Meher +2 more
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Linear Convergence of Gradient and Proximal-Gradient Methods Under the Polyak-Łojasiewicz Condition
ECML/PKDD, 2016In 1963, Polyak proposed a simple condition that is sufficient to show a global linear convergence rate for gradient descent. This condition is a special case of the \L{}ojasiewicz inequality proposed in the same year, and it does not require strong ...
H. Karimi, J. Nutini, Mark W. Schmidt
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Condition Monitoring of Power Transformer Insulation by Return Voltage Measurement
2021 IEEE 5th International Conference on Condition Assessment Techniques in Electrical Systems (CATCON), 2021Due to ageing, insulation of the power transformers degrade. Ageing occurs mainly due to moisture content and oxygen in the oil-paper insulation of the power transformer. The ageing process causes an increase in the dissipation factor.
Gajanand Soni, S. Dutta, A. Baral
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Graded Rings with Finiteness Conditions
Journal of Mathematical Sciences, 2023The authors extend to the graded case some classical results from ring theory. They provide information about the graded classical right quotient ring of a graded semiprime graded Goldie ring, and discuss when this quotient ring is graded Artinian, provided that the grading group is periodic.
Bazhenov, D. S., Kanunnikov, A. L.
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Transfer Learning based Condition Assessment of High Voltage Insulator: A Comparative Analysis
2021 IEEE 5th International Conference on Condition Assessment Techniques in Electrical Systems (CATCON), 2021Routine inspection of a power line insulator system for early problem detection and maintenance is required for the effective transmission of electrical power to customers.
Satyajit Panigrahy +2 more
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On the use of jerk and snap in condition monitoring of machinery – review and case studies
Insight - Non-Destructive Testing and Condition Monitoring, 2021The time derivatives of acceleration offer a great advantage in detecting impact-causing faults at an early stage in condition monitoring applications. Defective rolling bearings and gears are common faults that cause impacts.
S. Lahdelma
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