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 106
- Downloads 0
Forecasts of the Maintenance Activity
Enhancing the machines’ technical and technological performance through constructive improvements that allow for the automation of orders, contributes to the increasing of the production capacity of the system and for ma...
A Comparative Study of Outdoor Lighting System Performance
We analyse in this work three outdoor lighting systems using three types of light sources, in order to determine their performance with respect to outdoor lighting restrictions. The study in this work contributes to gain...
On the Optimal Selection of Electrical Machines Fans
In this paper an analytic relationship for electrical machine fan design has been developed. In the particularly case of salient poles synchronous machine (with salient poles – for electromagnetic field excitation or sur...
Study of the Deformation of the Flexible Wheel by Mechanical Generators with Two Deformation Waves
The correct operation and durability of the harmonic gear transmis-sions depends to a large extent on the precision of the execution, the deformation law and the durability of the flexible toothed wheel, the most request...
Development and Evaluation of Charcoal-Powered Bread Baking Oven
Charcoal-powered bread baking oven was developed and evaluated with functional efficiencies of 91.2% and 92.1% for baking dough of mass 0.5kg and 1.5 kg to bread at BP of 27.7minutes, 35.9 minutes with the baking tempera...