Zhongguo dianli, 2022 The accurate and rapid identification of model parameters is crucial to the simulation of the hysteresis characteristics of current transformer cores based on the J-A hysteresis model.
Yilun LI, Yishu ZHANG, Guang SONG
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Calculation of 220kV Transformer Bias Current Based on the Earth and Power Grid Model in the Metro Area [PDF]
E3S Web of Conferences, 2021 The metro stray current will be generated during subway operation, which will affect the electromagnetic environment near the subway, and then affect the surrounding 220kV transformer.
Chen Lu +6 more
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A Solid State Transformer model for power flow calculations [PDF]
, 2017 This paper presents the implementation of a Solid State Transformer (SST) model in OpenDSS. The goal is to develop a SST model that could be useful for assessing the impact that the replacement of the conventional iron-and-copper transformer with the SST
Guerra Sánchez, Luis Gerardo +1 more
core +2 more sources
The.main types of wind turbines-generators in the power supply system
Известия высших учебных заведений: Проблемы энергетики, 2022 THE PURPOSE. This paper considers the problem of relay protection functioning when the current transformer reaches the saturation mode which is provided by transient processes.METHODS. MATLAB Simulink software environment allows reproducing the method of
V. A. Novobritsky, D. S. Fedosov
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Design and operation of a protection system for transformers with superconducting windings [PDF]
, 1985 Power transformers with superconducting windings need a protection system to prevent damage to the low-loss superconducting winding by an abnormally high current.
Klundert, L.J.M. van de +2 more
core +3 more sources
Direct usage of photovoltaic solar panels to supply a freezer motor with variable DC input voltage [PDF]
, 2020 In this paper, a single-phase photovoltaic (PV) inverter fed by a boost converter to supply a freezer motor with variable DC input is investigated. The proposed circuit has two stages.
Farzan Moghaddam, Ali +1 more
core +2 more sources
Non-Sinusoidal Loading Effect on Oil Immersed Power Transformers [PDF]
Engineering and Technology Journal, 2011 Transformers are usually designed for nominal frequency and sinusoidal load current. Nowadays, usage of non-linear loads such as power electronics loads has extremely increased.
Mohammed k.Edan
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Evaluation of Lightning Impulse Test by Frequency Response Analysis [PDF]
, 2006 In this work are presented the basis for improving the interpretation of transformer lightning impulse test and the development of a graphical user interface system, which allows comparisons of time domain data and frequency response.
Ramírez, Jorge, Valecillos, Baudilio
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Parameter Optimization Design of Light induction Power-taking Device for Transmission Cable
Journal of Harbin University of Science and Technology, 2021 Current transformer induction power generation has the advantages of strong practicability, wide range of use and high safety, and it is expected to become the most effective energy supply method for online monitoring equipment of power system ...
LIN Jin-shu +4 more
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Wide Bandwidth and Inexpensive Current Sensor for Power Electronics—An Augmented LEM Current Sensor
Energies, 2021 This paper presents the overall concept of a wideband and cost-effective current sensor. The sensor consists of a paralleled Hall-based current sensor (LEM) and a wideband current transformer (CT).
Maciej Chojowski +5 more
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