Results 31 to 40 of about 262,039 (330)
Известия высших учебных заведений и энергетических объединенний СНГ: Энергетика, 2020 Digital filters made with the use of discrete Fourier Transform are applied in most microprocessor protections produced both in the home country and abroad.
E. A. Romaniuk +3 more
doaj +1 more source
Ingeniería e Investigación, 2015 This paper presents a novel technique for remotely identifying and locating of damaged insulator strings based on an analysis of noise signals recorded on the ground connection of current transformers installed on transmission line substations.
Renato Massoni Capelini
doaj +1 more source
High-Frequency Current Transformers Cascade for Power Electronics Measurements
Sensors, 2022 High-frequency current transformers (HFCT) are widely used to measure fast transient current. Their advantages are simple structure and relatively moderate price.
Maciej Chojowski +3 more
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Mutual capacitor and its applications
The Journal of Engineering, 2014 This study presents a new ac circuit element – the mutual capacitor, being a dual of the mutual inductor, which is also a new ac transformer. This element is characteristic of the mutual-capacitance coupling of a multi-capacitance system. A unity-coupled
Chun Li, Jason Li, Jieming Li
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Insulation Fault Caused by Current Transformer Seal Failure
Zhongguo dianli, 2020 Firstly, the insulation structures of oil-immersed current transformer (TA) and SF6 TA are introduced. And then, the causes of TA insulation breakdowns are analyzed based on an investigation of the insulation faults of TAs occurring in several cases.
Yuquan LI +7 more
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Energies, 2023 In this review article, ideas for the development of measuring methods and setups to test inductive instrument transformer accuracy for the transformation of distorted current or voltage are analyzed. This article proposes limiting values for ratio error
Michal Kaczmarek, Ernest Stano
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The Reference Wideband Inductive Current Transformer
Energies, 2023 The aim of this paper is to show that the developed inductive current transformer may ensure the required wideband transformation accuracy and it may be applied, as the reference source, in the measuring system for the evaluation of the transformation ...
Michal Kaczmarek +2 more
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Short-circuit protection of LLC resonant converter using voltages across resonant tank elements
The Journal of Engineering, 2015 This paper describes two methods for the short-circuit protection of the LLC resonant converter. One of them uses the voltage across the capacitor and the other uses the voltage across the inductor of the resonant tank.
Denys Igorovych Zaikin
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Fast Detection of Current Transformer Saturation Using Stacked Denoising Autoencoders
Energies, 2023 Malfunctions in relay protection devices are predominantly caused by current transformer (CT) saturation which produces distortion in current measurements and disturbances in power system protection.
Sopheap Key +3 more
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Apparatus for measuring current flow Patent [PDF]
, 1969 Electric current measuring apparatus design including saturable core transformer and energy storage device to avoid magnetizing current errors from transformer output ...
Paulkovich, J.
core +1 more source