Results 11 to 20 of about 115,222 (300)
A novel approach to detect CT saturation using standalone CT measurements [PDF]
, 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
A Dual Deep Neural Network Approach for Discriminating Internal Faults and Inrush Currents in Transformers Under CT Saturation [PDF]
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
doaj +2 more sources
Zhongguo dianli, 2023 To solve the problem of relay protection caused by CT saturation, a CT saturation identification method is proposed based on flux density characteristics and secondary current reconstruction technology in the distortion area.
Feng WANG +5 more
doaj +1 more source
Vulnerability Assessment of Phasor Estimation Algorithms under CT Saturation: A Comparative Analysis [PDF]
, 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 [PDF]
, 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
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
doaj +1 more source
X-ray CT images of HBS for saturation exponent [PDF]
, 2020 X-ray CT images of xenon-hydrate-bearing alumina balls packing; Used to extract fractal dimensions for electrical property analyses; In order to figure out the physical connections behind pore structures and saturation exponent in Archie's ...
Lele Liu (7404866)
core +1 more source
The Egyptian Journal of Radiology and Nuclear Medicine, 2022 Background COVID-19 pneumonia is responsible for the latest pandemics. Chest computed tomography (CT) scan is known to be an essential tool for diagnosis of COVID-19.
Ahmed Gamil Ibrahim Abd El Megid +2 more
doaj +1 more source
Clinical and radiological imaging as prognostic predictors in COVID-19 patients
The Egyptian Journal of Radiology and Nuclear Medicine, 2021 Background Since the announcement of COVID-19 as a pandemic infection, several studies have been performed to discuss the clinical picture, laboratory finding, and imaging features of this disease.
Maha Ibrahim Metwally +10 more
doaj +1 more source
Waveform dissimilarity factor-based protection for main transformers in wind farms
Energy Reports, 2023 Current differential protection (CDP) is widely used as main protection for transformers due to its high reliability and selectivity. Owing to non-fundamental frequency current, magnetizing inrush and current transformer (CT) saturation, CDP may undergo ...
Yingyu Liang +3 more
doaj +1 more source