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 99
- Downloads 0
The Mechanism for Actuating and Automating the Shaking Tables
In the paper, is present the shaking table designed for the laboratory use, to simulate the earthquakes behaviors. With this equipment we can study the dynamic behavior of civil engineering structures subjected to seismi...
The Impacts of Elevated Carbondioxide (CO2) on Users’ Comfort in Residential Building at Bawak-Sabo, Auchi, Nigeria
This research work establishes the effects of CO2 on users’ comfort in residential building with specific residential neighborhood in Bawak Sabo as the study area. There is an existing complaint of sneezing, tiredness, s...
Model Equations of Shape Memory Effect - Nitinol
Even it has been already confirmed that SMA’s have high potential for robotic actuators, actuators included in space robotics, underwater robotics, robotics for logistics, safety, as well as “green robotics” (robotics fo...
Investigating the Stress in the Body of the Flexible Wheel of a Radial Harmonic Transmission
The paper presents a study of the strains and stress state in the flexi-ble toothed wheel of a radial harmonic transmission, in the case of its deformation by a 2 roller mechanical wave generator. Dynamic research has pu...
Influence of Stator Winding Resistance upon Maximum Torque of Reluctance Synchronous Motors
This paper starts from the conclusion that, in case of low power reluctance synchronous motors, it is imposed to consider the resistance of the armature winding because its value may not be neglected. In order to study t...