PLECS 2.2 Online Help

Linear Dy5 Transformer

Purpose

Three-phase transformer in Dy5 connection.

Library

3-Phase Transformers

Description

pict

Implements a linear three-phase transformer with two windings in Dy5 connection using three Linear 2-Winding Transformers. The magnetization inductance Lm   and the core losses Rm   are modeled as linear elements. Their values are referred to the primary side.

Parameters and Dialog Box

[Picture]

Leakage inductance
A two-element vector containing the leakage inductance of the primary side L1   and the secondary side L2  . The inductivity is given in henries (H).
Winding resistance
A two-element vector containing the resistance of the primary winding R1   and the secondary winding R2  , in ohms (_O_  ).
Winding ratio
The ratio n1∕n2    between the number of turns of the primary and secondary winding.
Magnetization inductance
The magnetization inductance Lm  , in henries (H). The value is referred to the primary side.
Core loss resistance
An equivalent resistance Rm   representing the iron losses in the transformer core. The value in ohms (_O_  ) is referred to the primary side.
Initial currents wdg. 1
A two-element vector containing the initial currents on the primary side [i1,a i1,b]   in amperes (A). The currents are considered positive if flowing into the transformer. The default is [0 0 0].
Initial currents wdg. 2
A three-element vector containing the initial currents on the secondary side [i2,a i2,b i2,c]   in amperes (A). The currents are considered positive if flowing into the transformer. The default is [0 0 0].