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Overvoltages caused by the interruption of small inductive transformer currents
IEEE Transactions on Power Systems, 1988The interruption of small inductive currents can cause high overvoltages, which may overstress the dielectric strength of the equipment. Based on detailed dynamic models for the circuit breaker and the transformer, a variety of parameters which influence these overvoltages is systematically investigated by digital simulation.
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Proceedings of the American Institute of Electrical Engineers, 1915
Reasons are given for the selection of initial inductances as a means for calibrating current transformers, the most important of which is the wide use to which they may be put besides the calibration of current transformers. The design and manufacture of the apparatus is described, reasons being given for the choice of the form of the secondary coils ...
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Reasons are given for the selection of initial inductances as a means for calibrating current transformers, the most important of which is the wide use to which they may be put besides the calibration of current transformers. The design and manufacture of the apparatus is described, reasons being given for the choice of the form of the secondary coils ...
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Wavelet Scattering Transform Based Induction Motor Current Signature Analysisa
2020 International Conference on Electrical Machines (ICEM), 2020In this paper wavelet scattering transform (WST) algorithm is proposed to analyze motor current signatures and extract faults features. The algorithm overcomes the short comings of the classical techniques, which are noise sensitivity and computational complexity in features extraction.
Mesaad AlBader, Hamid A. Toliyat
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The effect of transformer magnetizing inductance on a forward converter with current mode control
Journal of the Chinese Institute of Engineers, 2007Abstract The small‐signal model for a forward converter with current‐mode control is derived which includes the magnetizing inductance of the main power transformer. It is found that the feedforward gain is modified by magnetizing inductance and so are the transfer functions of current loop gain, control to output and audio susceptibility.
Shen‐Yaur Chen +2 more
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Fourier and Wavelet Transformations for the Fault Detection of Induction Motor with Stator Current
2006In this literature, fault detection of an induction motor is carried out using the information of stator current. After preprocessing actual data, Fourier and wavelet transforms are applied to detect characteristics under the healthy and various faulted conditions. The most reliable phase current among 3-phase currents is selected by the fuzzy entropy.
Sang-Hyuk Lee +3 more
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A Current-Reused VCO With Inductive-Transformer Feedback Technique
IEEE Transactions on Microwave Theory and Techniques, 2022Cao Wan, Taotao Xu, Xiang Yi, Quan Xue
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2023 IEEE 13th International Workshop on Applied Measurements for Power Systems (AMPS), 2023
Ruan Murray, Jan A. de Kock
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Ruan Murray, Jan A. de Kock
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2012 IEEE International Power Modulator and High Voltage Conference (IPMHVC), 2012
The aim of the paper is to present results concerning the influence of conductive disturbances on accuracy of transformation of distorted signal main harmonic through the inductive current transformers (CTs). Analysis of the results from the laboratory studies shows, that conductive disturbances in the CT primary current, in some measuring conditions ...
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The aim of the paper is to present results concerning the influence of conductive disturbances on accuracy of transformation of distorted signal main harmonic through the inductive current transformers (CTs). Analysis of the results from the laboratory studies shows, that conductive disturbances in the CT primary current, in some measuring conditions ...
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Wide Frequency Operation of the Inductive Current Transformer with Ni80Fe20 Toroidal Core
Electric Power Components and Systems, 2014Abstract—During transformation of the power frequency currents, inductive current transformers are characterized by the values of current errors and phase displacement, which determine their accuracy class. However, current transformers catalogues do not specify these metrological parameters of transformation for the sinusoidal signals at frequencies ...
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Design a High-efficiency Adaption Circuit for Current Transformer Induction Power
2022 5th International Conference on Power and Energy Applications (ICPEA), 2022Li Zhiyong +4 more
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