FPGA-Based Smart Sensor to Detect Current Transformer Saturation during Inrush Current Measurement [PDF]
Sensors, 2023 Current transformer saturation affects measurement accuracy and, consequently, protection reliability. One important concern in the case of overcurrent protections is the discrimination between faults and inrush current in power transformers.
G. de J. Martínez-Figueroa +2 more
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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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Saturation Detection-Based Blocking Scheme for Transformer Differential Protection
Energies, 2014 This paper describes a current differential relay for transformer protection that operates in conjunction with a core saturation detection-based blocking algorithm.
Byung Eun Lee +5 more
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Current transformer (CT) saturation classification using empirical mode decomposition (EMD) and relevance vector machine (RVM) [PDF]
Scientific ReportsThe fault is taking place in the power system where the saturation of the Current Transformer (CT) is occurring, among other variations of system parameters.
Nilesh Chothani +3 more
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An enhanced protection scheme for power transformers integrating alpha plane analysis [PDF]
Scientific ReportsPower transformers play a critical role in electric power systems by facilitating connections between subsystems with different voltage levels. Ensuring their reliable operation and protection against faults is essential for maintaining network stability.
Ahmed S. Sayed +4 more
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The study on the Mal-operation of the transformer current differential protection during external faults cause by CT saturation [PDF]
E3S Web of Conferences, 2021 This paper analyses the unusual mal-operation of the differential protection for transformer current differential protection during the external fault. The mal-operation reason is researched in detail, based on the mathematical analysis, the simulation ...
Wu Jianhong +5 more
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Substation protection method for missing measurement information of transformer and bus connecting line [PDF]
E3S Web of Conferences, 2021 In order to solve the problems of protection misoperation and refusing to operate caused by the lack of measurement information in smart substation, a substation protection method which can effectively eliminate the influence of transformer inrush ...
Liu Wei +8 more
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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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Current Transformer Saturation Detection Method Based on Artificial Neural Network
Известия высших учебных заведений и энергетических объединенний СНГ: Энергетика, 2023 When current transformer is saturated, mainly due to the presence of an exponentially decaying DC component in the fault current, its secondary current has a distinctive distorted waveform which significantly differs from its primary (true) waveform.
Yu. V. Rumiantsev
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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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