5.1. IntroductionReal-Time Measurement InterfacesPrecautions in Real-Time Measurement5.2. Determining Moment of Inertia5.2.1. Virtual Instrument Panel5.2.2. Recommended Laboratory Hardware5.3. Losses in DC Motors5.3.1. Virtual Instrument PanelPart 1, Armature Resistance TestPart 2, Steady Speed TestPart 3, Retardation Test (Polar moment of inertia of the machine set)Part 4, Power Losses Against Speed GraphsPart 5, No-Load Iron Losses versus SpeedPart 6, Torque/Speed Characteristic5.3.2. Laboratory Hardware5.4. Electromechanical Device ExperimentPart 1, Data AcquisitionPart 2, AC Characteristics of the Magnetic CircuitView Input Data for ACView and Analyze Simulation Hysteresis LoopView and Analyze Real Data Hysteresis LoopCalculate Total Power Losses and Eddy Current LossesPart 3, DC Characteristics of Magnetic CircuitsView DC DataTheoretical Force Calculation5.4.1. Laboratory Hardware5.5. Tests for AC Circuits5.5.1. Single-Phase AC Circuit TestHardware for the Single-Phase Circuit Test5.5.2. Three-Phase AC Circuit TestHardware for Three-Phase AC Circuit Test5.5.3. Power Factor Correction TestHardware for Power Factor Correction Test5.6. Transformer TestPractical TransformerOpen-Circuit TestShort-Circuit TestFull-Load Test5.6.1. Virtual Instrument PanelExperimental Tests: Open-Circuit and Short-CircuitAnalysisFull-Load TestSimulation with Phasors5.6.2. Self-Study Questions5.6.3. Sample Results5.7. Asynchronous (Induction) Motor Test5.7.1. TheoryMeasuring the Equivalent Stator Winding Resistance R1Blocked-Rotor TestNo-Load (Light-Running) TestPerformance Characteristics5.7.2. Virtual Instrument PanelMeasuring Stator ResistanceBlocked-Rotor TestNo-Load TestPerformance Characteristics5.7.3. Self-Study Questions5.7.4. Laboratory Hardware5.8. Synchronization Observer5.8.1. Virtual Instrument Panel and Laboratory HardwareProcedures for the Synchronization Test5.9. Synchronous Machine TestEquivalent Circuit and PhasorsOpen-Circuit TestShort-Circuit TestSynchronous ImpedanceZero Power Factor Characteristic and Potier TriangleSlip TestPower and Phasor Analysis5.9.1. Virtual Instrument PanelMeasuring Stator ResistanceOpen-Circuit TestShort-Circuit TestSynchronous ImpedanceSynchronizationZero Power Factor TestSlip TestPower and Phasor Analysis5.9.2. Self-Study Questions5.9.3. Sample ResultsOpen-Circuit Test Results (Fig. 5-74)Short-Circuit Test Results (Fig. 5-75)Synchronous Impedance (Fig. 5-76)Zero Power Factor Test (Fig. 5-77 and Fig. 5-78)Slip Test (Fig. 5-79)Power and Phasor Analysis (Fig. 5-80 and Fig. 5-81)5.10. References