Results 11 to 20 of about 2,963,400 (288)

Identification of interturn faults in power transformers by means of generalized symmetrical components analysis [PDF]

open access: yesE3S Web of Conferences, 2019
The paper deals with experimental identification of transformer internal faults, an important factor in reliability and sustainability of power supply systems. Task of identification of transformer internal faults requires increasing sensitivity of relay
Ivanchenko Daniil, Smirnov Artem
doaj   +2 more sources

Symmetrical Components Digital Filters for Microprocessor-Based Protection Input Signals [PDF]

open access: yesИзвестия высших учебных заведений и энергетических объединенний СНГ: Энергетика, 2023
In microprocessor protections, measuring bodies are used that react to individual symmetrical components of signals or a combination of them. This makes the corresponding protection devices more sensitive.
F. A. Romaniuk   +2 more
doaj   +2 more sources

A simple algorithm for the symmetrical components relaying and monitoring

open access: yes, 1996
An algorithm suitable for computation of symmetrical components is presented Ln the paper. The algorithm is based on the Four-Sample Method and it extracts the rms values of the symmetrical components.
Crossed D Signurić, M.   +3 more
core   +10 more sources

Synthesis of branch-guide directional couplers and filter prototypes [PDF]

open access: yes, 1968
The object of this thesis is the solution of the following problems using the theories of lumped and distributed network synthesis: (1) Synthesis of equally terminated, lumped and. distributed filters containing an even number of elements.
Lind, Larry Frederick
core   +6 more sources

Revenue Metering of Unbalanced Prosumers in Energy Communities

open access: yesIEEE Open Access Journal of Power and Energy, 2023
The presence of power generating plants owned by prosumers may lead to unbalanced bidirectional energy flows at the points of connection to the relevant distribution systems.
Jan Klusacek   +2 more
doaj   +1 more source

Inertial Bone Conduction: Symmetric and Anti-Symmetric Components [PDF]

open access: yesJournal of the Association for Research in Otolaryngology, 2011
Of the two pathways through which we hear, air conduction (AC) and bone conduction (BC), the fundamental mechanisms of the BC pathway remain poorly understood, despite their clinical significance. A finite element model of a human middle ear and cochlea was developed to gain insight into the mechanisms of BC hearing.
Namkeun, Kim, Kenji, Homma, Sunil, Puria
openaire   +2 more sources

An Approach for Assigning Responsibilities of Short-Term Voltage Variations in Electrical Power Systems

open access: yesIEEE Access, 2023
Short-term voltage variations (STVVs) are phenomena manifested as voltage sags, voltage swells, or interruptions lasting up to 1 minute. Despite their short duration, they greatly influence the operations of loads.
Adrian Ribeiro Ferreira   +3 more
doaj   +1 more source

Fault-Locator Scheme for Combined Taba-Aqaba Transmission System Based on New Faulted Segment Identification Method

open access: yesIEEE Access, 2023
In this paper, a new fault locator scheme is introduced to address the non-homogeneity of combined transmission lines (Taba-Aqaba Intertie transmission system).
Mahmoud A. Elsadd   +3 more
doaj   +1 more source

Method for digital processing of a three-phase signal for extraction symmetric components

open access: yesВестник Северо-Кавказского федерального университета, 2022
The paper proposes to the development of methods for assessing the level of current and voltage asymmetry in three-phase electrical networks. The main direction of research in this work is the creation of a simple hardware-oriented method for extracting ...
A. М. Petrov, D. A. Kostyukov
doaj   +1 more source

Analysis of the Possibilities of Selective Detection of a Single Line-to-Ground Fault in a Medium Voltage Network with Isolated Neutral

open access: yesEnergies, 2021
The paper analyses how the characteristics of the medium-voltage network with insulated neutral and the conditions under which the single line-to-ground fault occurs (insulation condition and value of the fault resistance) influence the zero-sequence ...
Dumitru Toader   +4 more
doaj   +1 more source

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