Results 11 to 20 of about 114,627 (294)
CT Saturation Detection with Calculation of Instantaneous Impedance of Magnetic Branch Using FILT [PDF]
مجله مدل سازی در مهندسی, 2017 Accurate indiscrimination of CT saturation can be caused mal-operation of protection systems. Due to nonlinear and loss characteristic behavior of CTs, it is necessary to use a numerical method to detect CT saturation, accurately.
Alireza Fallahi +2 more
doaj +2 more sources
Energies, 2017 Current transformer (CT) saturation is one of the significant problems for protection engineers. If CT saturation is not tackled properly, it can cause a disastrous effect on the stability of the power system, and may even create a complete blackout.
Muhammad Ali +3 more
doaj +2 more sources
Research on oil displacement mechanism in conglomerate using CT scanning method
Petroleum Exploration and Development, 2014 Taking the conglomerate from Xinjiang Oilfield as study object, the porosity distribution characteristics of the conglomerate were analyzed with CT scanning; through the online monitoring of the water and polymer flooding process in a conglomerate core ...
Shiguan DENG +9 more
doaj +3 more sources
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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Saturation Modeling of Gas Hydrate Using Machine Learning with X-Ray CT Images
Energies, 2020 This study conducts saturation modeling in a gas hydrate (GH) sand sample with X-ray CT images using the following machine learning algorithms: random forest (RF), convolutional neural network (CNN), and support vector machine (SVM).
Sungil Kim +6 more
doaj +2 more sources
A novel approach to detect CT saturation using standalone CT measurements
, 2017 The requirement for reliability and security in power system is increasing every passingday with the increase in complexity of the power system. To ensure highest level ofreliability, protection relays have to receive correct measurements. One of the most importantmeasurement that is needed by a relay as an input is current.
Uddin, Salman
openaire +2 more sources
IEEE AccessThe dependability and security of transformer differential protection can be compromised by current transformer (CT) saturation, which distorts current measurements and may lead to the maloperation of protective relays.
Sopheap Key +4 more
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Vulnerability Assessment of Phasor Estimation Algorithms under CT Saturation: A Comparative Analysis
, 2022 Saturation phenomena in the current transformer (CT) may impose severe deformation in the secondary current of a CT. Obviously, CT saturation profoundly impacts the performance of the phasor estimation algorithms which can result in the mal-operation of ...
Tajdinian, Mohsen +4 more
core +1 more source
RTDS Based Testing of Bus Differential Protective Relay Performance in Presence of CT Saturation
, 2023 A power system busbar can experience very high amounts of currents during short circuit faults, resulting in significant and often irreparable damage. Therefore, bus protection systems need to have fast, reliable, and secure operation.
Ishwarjot Anand (16317154)
core +1 more source
Impact of CT saturation on overcurrent relays
The Journal of Engineering, 2018 An overcurrent relay analyses and processes the secondary currents from a set of current transformers (CTs) and if the currents exceed the operating threshold initiates the tripping of a circuit breaker after an appropriate time. An important issue for a protection relay is how it responds when the steel core of the CT is saturated. The exact behaviour
Yanjun Ma, Peter Crossley
openaire +1 more source