PartialBasicTransformer

Partial model of three-phase transformer

Diagram

Information

This information is part of the Modelica Standard Library maintained by the Modelica Association.

Partial model of a three-phase transformer, containing primary and secondary resistances and stray inductances, as well as the iron core. Circuit layout (vector group) of primary and secondary windings have to be defined.
Default values for transformer's parameters (a realistic example) are:

turns ratio n	1
nominal frequency fNominal	50	Hz
nominal voltage per phase	100	V RMS
nominal current per phase	100	A RMS
nominal apparent power	30	kVA
primary resistance R1	0.005	Ohm per phase at reference temperature
reference temperature T1Ref	20	°C
temperature coefficient alpha20_1	0	1/K
primary stray inductance L1sigma	78E-6	H per phase
secondary resistance R2	0.005	Ohm per phase at reference temperature
reference temperature T2Ref	20	°C
temperature coefficient alpha20_2	0	1/K
secondary stray inductance L2sigma	78E-6	H per phase
operational temperature T1Operational	20	°C
operational temperature T2Operational	20	°C
These values give the operational parameters:
nominal voltage drop	0.05	p.u.
nominal copper losses	300	W

Parameters (12)

n	Value: Type: Real Description: Ratio primary voltage (line-to-line) / secondary voltage (line-to-line)
R1	Value: Type: Resistance (Ω) Description: Primary resistance per phase at TRef
T1Ref	Value: Type: Temperature (K) Description: Reference temperature of primary resistance
alpha20_1	Value: Type: LinearTemperatureCoefficient20 (¹/K) Description: Temperature coefficient of primary resistance at 20 degC
L1sigma	Value: Type: Inductance (H) Description: Primary stray inductance per phase
R2	Value: Type: Resistance (Ω) Description: Secondary resistance per phase at TRef
T2Ref	Value: Type: Temperature (K) Description: Reference temperature of secondary resistance
alpha20_2	Value: Type: LinearTemperatureCoefficient20 (¹/K) Description: Temperature coefficient of secondary resistance at 20 degC
L2sigma	Value: Type: Inductance (H) Description: Secondary stray inductance per phase
useThermalPort	Value: false Type: Boolean Description: Enable / disable (=fixed temperatures) thermal port
T1Operational	Value: Type: Temperature (K) Description: Operational temperature of primary resistance
T2Operational	Value: Type: Temperature (K) Description: Operational temperature of secondary resistance

Outputs (5)

powerBalance	Type: PowerBalanceTransformer Description: Power balance
v1	Default Value: plug1.pin.v Type: ComplexVoltage[m] Description: Primary voltage
i1	Default Value: plug1.pin.i Type: ComplexCurrent[m] Description: Primary current
v2	Default Value: plug2.pin.v Type: ComplexVoltage[m] Description: Secondary voltage
i2	Default Value: plug2.pin.i Type: ComplexCurrent[m] Description: Secondary current

Connectors (3)

	plug1	Type: PositivePlug Description: Primary plug
	plug2	Type: NegativePlug Description: Secondary plug
	thermalPort	Type: ThermalPortTransformer

plug1

Type: PositivePlug

Description: Primary plug

plug2

Type: NegativePlug

Description: Secondary plug

thermalPort

Type: ThermalPortTransformer

Components (11)

	powerBalance	Type: PowerBalanceTransformer Description: Power balance
	v1	Type: ComplexVoltage[m] Description: Primary voltage
	i1	Type: ComplexCurrent[m] Description: Primary current
	v2	Type: ComplexVoltage[m] Description: Secondary voltage
	i2	Type: ComplexCurrent[m] Description: Secondary current
	r1	Type: Resistor
	l1sigma	Type: Inductor
	r2	Type: Resistor
	l2sigma	Type: Inductor
	core	Type: IdealCore
	thermalAmbient	Type: ThermalAmbientTransformer

Extended by (36)

	Dz10 Modelica.Electrical.QuasiStationary.Machines.BasicMachines.Transformers.Dz Transformer Dz10
	Dz08 Modelica.Electrical.QuasiStationary.Machines.BasicMachines.Transformers.Dz Transformer Dz8
	Dz06 Modelica.Electrical.QuasiStationary.Machines.BasicMachines.Transformers.Dz Transformer Dz6
	Dz04 Modelica.Electrical.QuasiStationary.Machines.BasicMachines.Transformers.Dz Transformer Dz4
	Dz02 Modelica.Electrical.QuasiStationary.Machines.BasicMachines.Transformers.Dz Transformer Dz2
	Dz00 Modelica.Electrical.QuasiStationary.Machines.BasicMachines.Transformers.Dz Transformer Dz0
	Dd10 Modelica.Electrical.QuasiStationary.Machines.BasicMachines.Transformers.Dd Transformer Dd10
	Dd08 Modelica.Electrical.QuasiStationary.Machines.BasicMachines.Transformers.Dd Transformer Dd8
	Dd06 Modelica.Electrical.QuasiStationary.Machines.BasicMachines.Transformers.Dd Transformer Dd6
	Dd04 Modelica.Electrical.QuasiStationary.Machines.BasicMachines.Transformers.Dd Transformer Dd4
	Dd02 Modelica.Electrical.QuasiStationary.Machines.BasicMachines.Transformers.Dd Transformer Dd2
	Dd00 Modelica.Electrical.QuasiStationary.Machines.BasicMachines.Transformers.Dd Transformer Dd0
	Dy11 Modelica.Electrical.QuasiStationary.Machines.BasicMachines.Transformers.Dy Transformer Dy11
	Dy09 Modelica.Electrical.QuasiStationary.Machines.BasicMachines.Transformers.Dy Transformer Dy9
	Dy07 Modelica.Electrical.QuasiStationary.Machines.BasicMachines.Transformers.Dy Transformer Dy7
	Dy05 Modelica.Electrical.QuasiStationary.Machines.BasicMachines.Transformers.Dy Transformer Dy5
	Dy03 Modelica.Electrical.QuasiStationary.Machines.BasicMachines.Transformers.Dy Transformer Dy3
	Dy01 Modelica.Electrical.QuasiStationary.Machines.BasicMachines.Transformers.Dy Transformer Dy1
	Yz11 Modelica.Electrical.QuasiStationary.Machines.BasicMachines.Transformers.Yz Transformer Yz11
	Yz09 Modelica.Electrical.QuasiStationary.Machines.BasicMachines.Transformers.Yz Transformer Yz9
	Yz07 Modelica.Electrical.QuasiStationary.Machines.BasicMachines.Transformers.Yz Transformer Yz7
	Yz05 Modelica.Electrical.QuasiStationary.Machines.BasicMachines.Transformers.Yz Transformer Yz5
	Yz03 Modelica.Electrical.QuasiStationary.Machines.BasicMachines.Transformers.Yz Transformer Yz3
	Yz01 Modelica.Electrical.QuasiStationary.Machines.BasicMachines.Transformers.Yz Transformer Yz1
	Yd11 Modelica.Electrical.QuasiStationary.Machines.BasicMachines.Transformers.Yd Transformer Yd11
	Yd09 Modelica.Electrical.QuasiStationary.Machines.BasicMachines.Transformers.Yd Transformer Yd9
	Yd07 Modelica.Electrical.QuasiStationary.Machines.BasicMachines.Transformers.Yd Transformer Yd7
	Yd05 Modelica.Electrical.QuasiStationary.Machines.BasicMachines.Transformers.Yd Transformer Yd5
	Yd03 Modelica.Electrical.QuasiStationary.Machines.BasicMachines.Transformers.Yd Transformer Yd3
	Yd01 Modelica.Electrical.QuasiStationary.Machines.BasicMachines.Transformers.Yd Transformer Yd1
	Yy10 Modelica.Electrical.QuasiStationary.Machines.BasicMachines.Transformers.Yy Transformer Yy10
	Yy08 Modelica.Electrical.QuasiStationary.Machines.BasicMachines.Transformers.Yy Transformer Yy8
	Yy06 Modelica.Electrical.QuasiStationary.Machines.BasicMachines.Transformers.Yy Transformer Yy6
	Yy04 Modelica.Electrical.QuasiStationary.Machines.BasicMachines.Transformers.Yy Transformer Yy4
	Yy02 Modelica.Electrical.QuasiStationary.Machines.BasicMachines.Transformers.Yy Transformer Yy2
	Yy00 Modelica.Electrical.QuasiStationary.Machines.BasicMachines.Transformers.Yy Transformer Yy0