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Wye-Zigzag Transformers

Three-phase transformers with wye primary and zigzag secondary windings

 Description Yz01  Yz03  Yz05  Yz07  Yz09  Yz11 The Wye-Zigzag (or Yz) components are three-phase transformers with wye primary and zigzag secondary windings. The base name of each component is Yzij, where ij are two digits that specify the phase shift between the primary and secondary windings. The numbers range from 0 to 12 and correspond to the hours on the face of a clock. For example, 01 corresponds to a phase shift of 30 degrees.

Connections

 Name Description Modelica ID $\mathrm{plug1}$ Primary plug plug1 $\mathrm{plug2}$ Secondary plug plug2 $\mathrm{starpoint1}$ Primary star-point connection starpoint1 $\mathrm{starpoint2}$ Secondary star-point connection starpoint2 $\mathrm{thermalPort}$ Optional thermal port thermalPort

Parameters

General Parameters

 Name Default Units Description Modelica ID $n$ $1$ $1$ Ratio primary voltage (line-to-line) / secondary voltage (line-to-line) n ${T}_{1,\mathrm{oper}}$ $293.15$ $K$ Operational temperature of primary resistance T1Operational ${T}_{2,\mathrm{oper}}$ $293.15$ $K$ Operational temperature of secondary resistance T2Operational Use Thermal Port $\mathrm{false}$ True (checked) means thermal port is enabled useThermalPort

Nominal Resistances And Inductances Parameters

 Name Default Units Description Modelica ID ${R}_{1}$ $\mathrm{\Omega }$ Primary resistance per phase at TRef R1 ${T}_{1,\mathrm{ref}}$ $293.15$ $K$ Reference temperature of primary resistance T1Ref ${\mathrm{\alpha }}_{1}$ $0$ $\frac{1}{K}$ Temperature coefficient of ${R}_{1}$ at ${T}_{1},\mathrm{ref}$ alpha20_1 ${L}_{1\mathrm{\sigma }}$ $H$ Primary stray inductance per phase L1sigma ${R}_{2}$ $\mathrm{\Omega }$ Secondary resistance per phase at TRef R2 ${T}_{2,\mathrm{ref}}$ $293.15$ $K$ Reference temperature of secondary resistance T2Ref ${\mathrm{\alpha }}_{2}$ $0$ $\frac{1}{K}$ Temperature coefficient of ${R}_{2}$ at ${T}_{2},\mathrm{ref}$ alpha20_2 ${L}_{2\mathrm{\sigma }}$ $H$ Secondary stray inductance per phase L2sigma

 Modelica Standard Library The component described in this topic is from the Modelica Standard Library. To view the original documentation, which includes author and copyright information, click here.