Electric Machinery

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Syllabus & Examinations

Syllabus

Solutions Exam 1 - Transformers

Solutions Exam 2 - Synchronous Machines

Solutions Exam 3 - Induction Motors

Unit 00 - Circuits Fundamentals Review

Topics include: Phasors, Instantaneous Power, Complex Power, Power Factor, Lecture 1 Homework Assignment. Ideal Wye-connected Source, Relationship of Line and Phase Voltages, Ideal Delta-to-Wye Source Transformation, Delta-to-Wye Load Impedance Transformation, Non-ideal Delta-to-Wye Source Transformation, Per-phase Analysis Procedure, Power Factor Correction, Comprehensive Example, Lecture 2 Homework Assignment.

Lecture 01 - Circuits Fundamentals Review - Lecture Notes

Lecture 01 - Circuits Fundamentals Review - Homework Solutions

Lecture 02 - Balanced Three-phase Analysis Without Transformers - Lecture Notes

Lecture 02 - Balanced Three-phase Analysis Without Transformers - Homework Solutions

Unit 01 - Single-phase Transformers

Topics include: Construction, The Ideal Transformer, Theory of Operation, Equivalent Circuit, Analysis in Units, Per-unit Analysis, Voltage Regulation, Phasor Diagram, Ideal Autotransformer, Non-ideal Autotransformer, Lectures 3 and 4 Homework Assignments.

Lecture 03 - Single-phase Transformers - Lecture Notes

Lecture 03 - Single-phase Transformers - Homework Solutions

Lecture 04 - Single-phase Transformers - Lecture Notes

Lecture 04 - Single-phase Transformers - Homework Solutions

Unit 02 - Three-phase Transformers

Topics include: Ideal Three-phase Transformer Connections, Per-phase Equivalent Circuit of Practical Three-phase Transformer in Units, Example of System Analysis in Units, Relationships of Base Quantities, Relationships of Per-unit Quantities, Selection Rules of Base Quantities, Per-unit Equivalent Circuit of Practical Three-phase Transformer, Example of Per-unit Analysis, Ideal Open-delta Connection, Ideal Open-wye Open-delta Connection, Non-ideal Open-wye Open-delta Connection, Ideal Scott-T Connection, Ideal Three-phase T Connection, Lectures 5 and 6 Homework Assignments.

Lecture 05 - Three-phase Transformers - Lecture Notes

Lecture 05 - Three-phase Transformers - Homework Solutions

Lecture 06 - Three-phase Transformers - Lecture Notes

Lecture 06 - Three-phase Transformers - Homework Solutions

Unit 03 - AC Machinery Fundamentals

Topics include: Voltage Induced in Simple Rotating Loop, Torque Induced in Current-carrying Loop, Rotating Magnetic Field, Electrical Frequency and Speed of Field Rotation, Reversing Direction of Field Rotation, MMF and Flux Distribution, Induced Voltage in AC Machines, Induced Torque in AC Machines.

Lecture 07 - AC Machinery Fundamentals - Lecture Notes

Unit 04 - Cylindrical-rotor Synchronous Generator

Topics include: Induced Generated Voltage, Effect of Armature Reaction, Equivalent Circuit, Phasor Diagrams, Power and Torque, Measuring Model Parameters, Synchronous Generator Operating Alone, Sample Problem 1, Sample Problem 2, Generator Capability Curve, Lecture 8 Homework Assignment.

Lecture 08 - Cylindrical-rotor Synchronous Generator - Lecture Notes

Lecture 08 - Cylindrical-rotor Synchronous Generator - Homework Solutions

Unit 05 - Parallel Operation of Synchronous Generators

Topics include: Advantages of Paralleling Generators, Required Conditions for Paralleling, Three-light-bulb Method, f-P and V-Q Characteristics, Isolated Generator Characteristics, Paralleling Generator to Infinite Bus - Real Power Control and Reactive Power Control, Paralleling Generators of Same Size - Individual Control and Power Sharing Adjustment and Control Without Affecting Power Sharing, Lecture 9 Homework Assignment.

Lecture 09 - Parallel Operation of Synchronous Generators - Lecture Notes

Lecture 09 - Parallel Operation of Synchronous Generators - Homework Solutions

Unit 06 - Salient-rotor Synchronous Generator

Topics include: Modeling of Armature Reaction, Development of Phasor Diagram, Construction of Phasor Diagram, Derivation of Power Formula, Derivation of Induced Torque Formula, Lecture 10 Homework Assignment.

Lecture 10 - Salient-rotor Synchronous Generator - Lecture Notes

Lecture 10 - Salient-rotor Synchronous Generator - Homework Solutions

Unit 07 - Steady-state Analysis of Induction Motor

Topics include: Induced Torque, Rotor Slip and Frequency, Per-phase Equivalent Circuit, Power Flow Diagram if Core Losses Specified, Power Flow Diagram if Core Losses Lumped into Rotational Losses, Power and Torque Formulas if Core Losses Specified, Power and Torque Formulas if Core Losses Lumped into Rotational Losses, No-load Test, DC Test, Blocked-rotor Test, Lecture 11 Homework Assignment.

Lecture 11 - Steady-state Analysis of Induction Motor - Lecture Notes

Lecture 11 - Steady-state Analysis of Induction Motor - Homework Solutions

Unit 08 - Induction Motor Torque-Speed Relationships

Topics include: Qualitative Analysis Under No-load Condition, Qualitative Analysis Under Heavy Load Condition, Qualitative Development of Torque-Speed Characteristic, Torque-Speed Characteristic Regions of Operation, Derivation of Induced Torque Relationship, Derivation of Maximum (Pull-out) Torque Relationship, Attributes of Torque-Speed Characteristic, Typical Squirrel Cage Rotor Laminations, NEMA design classes, Affect of Varying Rotor Resistance on Torque-Speed Characteristic of Wound Rotor Induction Motor, Deep-bar Rotor Construction and Operation, Double-cage Rotor Construction and Operation, Performance and Applications of NEMA design classes, Torque-Speed Characteristics of Mechanical Loads, Sample Problem 1, Sample Problem 2, Lecture 12 Homework Assignment.

Lecture 12 - Induction Motor Torque-Speed Relationships - Lecture Notes

Lecture 12 - Induction Motor Torque-Speed Relationships - Homework Solutions

Unit 09 - Synchronous Motor

Topics include: Basic Principle of Operation, Phasor and Magnetic Field Diagrams, Torque-Speed Characteristic, Induced Torque and Pull-out Torque Formulas, Effects of Load Change, Effects of Field Current Change, Starting Synchronous Motor, Motor Starting with Amortisseur Windings, Summary Table, Lecture 13 Homework Assignment.

Lecture 13 - Synchronous Motor - Lecture Notes

Lecture 13 - Synchronous Motor - Homework Solutions