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Transformation of Transient Overvoltages by Inductive Voltage Transformers. [PDF]
Sensors (Basel), 2021 Overvoltage transients occur after any type of switching activity in a power network, such as breaker operation, fault occurrence/clearance and rapid load change. This distortion of voltage is transformed to the secondary circuit of a voltage transformer. The maximum values of such impulses may many times exceed the rated value of its secondary voltage.
Kaczmarek M, Brodecki D.
europepmc +5 more sources
Multi-modal fusion fault diagnosis for high-voltage transformers based on STFT-ResBIGRUNet [PDF]
Scientific ReportsWith the development of commercial complexes, higher demands are being placed on the stability and security of internal power systems. As a core component of distribution systems, high-voltage transformers play critical roles in energy conversion, power ...
Jindou Yuan +3 more
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Investigation of ferroresonanse phenomena and its possibilities of occurrence in the operation of 6-220 kV electromagnetic transformer [PDF]
E3S Web of Conferences, 2021 Ferroresonance phenomena lead to damage to electromagnetic measuring voltage transformers and nearby equipment. Damping devices and antiresonance transformers, which are used for preventing the occurrence of ferroresonance phenomena, are effective in a ...
Tychkin Andrew +4 more
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On the Remote Calibration of Instrumentation Transformers: Influence of Temperature
Energies, 2023 The remote calibration of instrumentation transformers is theoretically possible using synchronous measurements across a transmission line with a known impedance and a local set of calibrated voltage and current transformers.
Bart Verhelst +4 more
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Energies, 2023 This article investigates the application of the pulse voltage method for detecting interturn short-circuit faults in the high-voltage windings of dry-type voltage transformers.
Hongyan Nie +3 more
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Conditions for distortion-free voltage transfer in the transformer [PDF]
E3S Web of Conferences, 2023 The optimal design of low-power transformers, sonic and ultrasonic transformers, pulse transformers, differential transformers, etc. requires an in-depth study of their theory and design calculation.
Gorsky A.N., Plotnikov I.I.
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AIP Advances, 2023 As an important high-voltage electrical equipment in the substation, the performance stability of high-voltage current transformers is directly related to the safe operation of the power grid. The insulating medium of the traditional oil-immersed current
Zhao Fang +6 more
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Machine Learning Approach Application for High-voltage Instrument Transformers Technical State Assessment [PDF]
ITM Web of Conferences, 2019 This paper describes the possibilities of machine learning application in the tasks of technical state assessment of high-voltage instrument transformers.
Khalyasmaa Alexandra +3 more
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Modern Methods of Construction Problem Solving in Designing Various Types of Instrument Transformers
Energies, 2022 Current and voltage instrument transformers are essential elements of the power system. They work like transformers but do not transmit power. Their task is to accurately transform currents or voltages during system operation, which are then used for ...
Elzbieta Lesniewska
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Energies, 2021 Knowledge of lightning impulse (LI) voltage distribution over transformer windings during the design stage of the transformer is very important. Specific design differences in inductive voltage transformers make the transient analysis approach different ...
Bojan Trkulja +3 more
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