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Detection of Current Transformer Saturation Based on Machine Learning [PDF]
MathematicsOne of the tasks in the operation of electric power systems is the correct functioning of the protection system and emergency automation algorithms. Instrument voltage and current transformers, operating in accordance with the laws of electromagnetism ...
Ismoil Odinaev +5 more
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Digital Current Measurement Element for Operation During Current Transformer Severe Saturation
Известия высших учебных заведений и энергетических объединенний СНГ: Энергетика, 2018 The development and implementation of a digital current measurement element for proper operation during current transformer (CT) magnetic core severe saturation are considered.
Yu. V. Rumiantsev +3 more
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AlgorithmsPower transformers are vital and costly components in power systems, essential for ensuring a reliable and uninterrupted supply of electrical energy. Their protection is crucial for improving reliability, maintaining network stability, and minimizing ...
Qusay Alhamd +3 more
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Estimation of the Primary Current in a Saturated Transformer
, 1991 It is pointed out that, when a current in a power system is measured using a transformer, the measurement can be distorted by transformer saturation. The authors examine two methods of estimating the primary current from the secondary in the presence of saturation.
Chen, Ke Wang, Glad, Torkel
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Modeling of Current Transformers Under Saturation Conditions [PDF]
Advances in Electrical and Electronic Engineering, 2006 During a short circuit the input signal of the relay can be distort by the magnetic core saturation of the current transformer. It is useful to verify the behavior of CT by a mathematical model. The paper describes one phase and three phase models and it presents some methods of how to analyze and classify a deformed secondary ...
Martin Prochazka, Procházka, M.
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Transmission Line Distance Protection Under Current Transformer Saturation
Journal of Modern Power Systems and Clean Energy, 2021 Conventional transmission line distance protection approaches are subject to malfunction under reverse fault-induced current transformer (CT) saturation for the typically employed breaker-and-a-half configuration.
Yuping Zheng +5 more
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Prevention of the current transformer saturation by using negative resistance
IET Generation, Transmission & Distribution, 2021 In the power grid, various conditions may occur that saturate the core of a current transformer. Saturation of the protection core of the current transformers can cause a malfunction in the protection relays.
Saeed Sanati, Yousef Alinejad‐Beromi
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Zhongguo dianli, 2023 Since the fault current output from the doubly-fed wind farm has frequency deviation characteristics and contains large harmonic components, when an internal fault occurs in the transmission transformer for the doubly-fed wind farm, the ratio of the ...
Yanchun XU +3 more
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Application of saturated core transformer as inrush current limiter
e-Prime: Advances in Electrical Engineering, Electronics and EnergyAn inrush current is a transient current that results from a sudden change in the exciting voltage across a transformer's windings. Reducing the inrush current of transformers is desirable due to mechanical stresses and negligent operation of protective ...
Mehrdad Tarafdar-Hagh +5 more
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Analysis of operation of transformer differential protection under current transformer saturation: Software simulations and relay testing [PDF]
Zbornik Radova: Elektrotehnički Institut "Nikola Tesla", 2021 In the paper the analyses of the current transformer saturation influence to operation of differential protection are presented. Analyses are performed using a simulation tool and a relay model, as well as using the physical relay by injecting test ...
Sučević Nikola +2 more
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