Considerations Concerning Matrix Diagram Transformations Associated with Mathematical Model Study of a Three-phase Transformer
Journal Title: Analele Universitatii "Eftimie Murgu" Resita. Fascicula de Inginerie - Year 2014, Vol 21, Issue 2
Abstract
The clock hour figure mathematical model of a threephase transformer can be expressed, in the most plain form, through a 3X3 square matrix, called code matrix. The lines position reflect the modification in the high voltage windings terminal and the columns position reflect the modification in the low voltage winding terminal. The main changes on the transformer winding terminal are: the circular permutation of connection between windings; terminal supply reversal; reverse direction for the phase winding wrapping; reversal the beginning with the end for a phase winding; the connection conversion from N in Z between phase winding or inverse. The analytical form of these changes actually affect the configuration of the mathematical model expressed through a transformations diagram proposed and analyzed in two ways: bipolar version and unipolar version (fanwise). In the end of the paper are presented about the practical exploitation of the transformations diagram.
Authors and Affiliations
Mihaela Poienar, Daniel Ștefan Georgescu, Ovidiu-Magdin Ţanţa, Ilie Niţan, Elena-Daniela Olariu, Dorel Cernomazu
Keywords
Related Articles
- EP ID EP460804
- DOI -
- Views 90
- Downloads 0
Waste Minimization Strategy and Technique: Towards Sustainable Waste Management
Generally, sustainable waste management aids construction key players to diminish and making better use of material on their construction project. The waste minimization strategy is not only implemented during the constr...
Power System Health Monitoring Based on Energy Losses using Genetic Algorithm
System health assessment becomes ever more important as consumers take for granted the apparent infallible character of power supply and the extremely high costs of prolonged down times. A system that achieves minimum op...
Combined Control Scheme for Monitoring Quality Characteristics
In the literature, the Exponentially Weighted Moving Average (EWMA) and Exponentially Weighted Moving Variance (EMWV) control schemes have been used separately to monitor the process average and process variability respe...
Efficiency Investigation on a Helical Gear Transmission
Gears are extensively used in many applications, such as: automotive, drive trains, industrial gearboxes and machine tools. They are designed to transmit power and rotational motion from the input shaft to the output sha...
Calculation of Digital Control Circuits using Scilab Environment
The paper presents the computing of digital control circuits using Scilab environment. It exemplifies the influence of the sampling time in case of a transfer system described by a PT3 element composed of one PT1 and one...