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

Test example: Investigate influence of losses on DCPM motor performance
Both motors are started with a voltage ramp applied to the armature, causing the DC machines to start, and accelerating inertias. Both machines are loading with a quadratic speed dependent load torque.
The first machine dcpm1 uses default machine parameters of model DC_PermanentMagnet, the second machine dcpm2 is parametrized with additional losses:

	dcpm1	dcpm2
Armature voltage	100	100	V
Armature current	100	100	A
Inner voltage	95.0	94.5	V
Nominal speed	1425.0	1417.5	rpm
Armature resistance	0.05000	0.03864	Ohm
Temperature coefficient	n/a	0.00392	1/K
Reference temperature	n/a	20	degC
Operation temperature	n/a	95	degC
Brush voltage drop	n/a	0.5	V
Electrical input	10,000	10,000	W
Armature copper losses	500	500	W
Core losses	n/a	200	W
Stray load losses	n/a	50	W
Friction losses	n/a	100	W
Brush losses	n/a	50	W
Mechanical output	9,500	9,100	W
Nominal torque	63,66	61,30	Nm

Note: The reference values (voltage, current, speed) are already propagated to the loss records, using the nominal operation point.
See:
Anton Haumer, Christian Kral, Hansjörg Kapeller, Thomas Bäuml, Johannes V. Gragger
The AdvancedMachines Library: Loss Models for Electric Machines
Modelica 2009, 7^th International Modelica Conference

Va	Value: 100 Type: Voltage (V) Description: Actual armature voltage
tStart	Value: 0.2 Type: Time (s) Description: Start of armature voltage ramp
tRamp	Value: 0.8 Type: Time (s) Description: Armature voltage ramp
TLoad1	Value: 63.66 Type: Torque (N·m) Description: Nominal load torque
wLoad1	Value: 1425 * 2 * pi / 60 Type: AngularVelocity (rad/s) Description: Nominal load speed
TLoad2	Value: 61.30 Type: Torque (N·m) Description: Nominal load torque
wLoad2	Value: 1417.5 * 2 * pi / 60 Type: AngularVelocity (rad/s) Description: Nominal load speed
JLoad	Value: 0.15 Type: Inertia (kg·m²) Description: Load's moment of inertia
dcpmData1	Value: Type: DcPermanentMagnetData
dcpmData2	Value: Type: DcPermanentMagnetData