Course Details

ELE 361 Electric Machines I
2021-2022 Spring term information

The course is not open this term

Timing data are obtained using weekly schedule program tables. To make sure whether the course is cancelled or time-shifted for a specific week one should consult the supervisor and/or follow the announcements.

Course definition tables are extracted from the ECTS Course Catalog web site of Hacettepe University ( in real-time and displayed here. Please check the appropriate page on the original site against any technical problems. Course data last updated on 24/05/2022.


Course Name Code Semester Theory
Credit ECTS
ELECTRIC MACHINES I ELE361 5th Semester 3 0 3 4
Prerequisite(s)ELE203 Circuit Theory I
Course languageEnglish
Course typeMust 
Mode of DeliveryFace-to-Face 
Learning and teaching strategiesLecture
Question and Answer
Problem Solving
Other: This course must be taken together with ELE365 ELECTRIC MACHINES LABORATORY I.  
Instructor (s)Faculty members 
Course objectiveThis course is designed to equip seniors with knowledge about basic concepts on electromechanical energy conversion, the operating characteristics of electrical machines and transformers, and their performance analysis based on steady-state equivalent circuit models. 
Learning outcomes
  1. A student who completes the course successfully will L.O.1. Know basic concepts on magnetic circuits: magnetization, energy storage, hysteresis and eddy current losses,
  2. L.O.2. Know basic operating principles of power transformers,
  3. L.O.3. Learn basic concepts on electromechanical energy conversion,
  4. L.O.4. Be aware of basic operating principles of rotating machines,
  5. L.O.5. Apply the techniques learned in the class to DC machine applications,
  6. L.O.6. Apply steady-state equivalent circuit modeling techniques for performance calculation of transformers and some electrical machines.
Course ContentBasic Concepts of Magnetic Circuits
Single-Phase Transformers
Three-Phase Transformers
Electromechanical Energy Conversion
Principles of Rotating Machines
DC Machines
Single-Phase Induction Motors 
ReferencesElectric Machinery Fundamentals, Chapman, 3rd Ed., McGraw-Hill
Electric Machinery, Fitzgerald, Kingsley, Umans, 5th Ed., McGraw-Hill
Electric Machines, Slemon, Straughen, Addison Wesley
Principles of Electrical Machinery and Power Electronics, Sen, John Wiley
Electromechanics and Electric Machines, Nasar, Unnewehr, 2nd Ed., John Wiley

Course outline weekly

Week 1Basic concepts of magnetic circuits, magnetization, energy storage
Week 2Hysteresis and eddy current losses
Week 3Transformer operation principles, equivalent circuit model
Week 4Transformer open circuit and short circuit tests
Week 5Voltage regulation and efficiency in transformers, examples
Week 6Three-phase transformers: connection types, per-phase equivalent-circuit model, and analyses
Week 7Electromechanical energy conversion: field energy, co-energy, electromagnetic force, and torque in singly-excited systems
Week 8Doubly-excited electromechanical energy conversion systems, examples
Week 9Midterm Exam
Week 10Principles of rotating machines: armature mmf, induced emf
Week 11DC machines: emf and torque production, magnetization characteristic
Week 12Methods of excitation
Week 13DC generator analysis, terminal voltage characteristics
Week 14DC motor analysis, ratings and efficiency, speed control
Week 15Preparation for Final exam
Week 16Final exam

Assesment methods

Course activitiesNumberPercentage
Field activities00
Specific practical training00
Final exam150
Percentage of semester activities contributing grade succes650
Percentage of final exam contributing grade succes150

Workload and ECTS calculation

Activities Number Duration (hour) Total Work Load
Course Duration (x14) 14 3 42
Laboratory 0 0 0
Specific practical training000
Field activities000
Study Hours Out of Class (Preliminary work, reinforcement, ect)14228
Presentation / Seminar Preparation000
Homework assignment5210
Midterms (Study duration)12020
Final Exam (Study duration) 12020
Total Workload3547120

Matrix Of The Course Learning Outcomes Versus Program Outcomes

D.9. Key Learning OutcomesContrubition level*
1. PO1. Possesses the theoretical and practical knowledge required in Electrical and Electronics Engineering discipline.     X
2. PO2. Utilizes his/her theoretical and practical knowledge in the fields of mathematics, science and electrical and electronics engineering towards finding engineering solutions.    X
3. PO3. Determines and defines a problem in electrical and electronics engineering, then models and solves it by applying the appropriate analytical or numerical methods.     X
4. PO4. Designs a system under realistic constraints using modern methods and tools.  X  
5. PO5. Designs and performs an experiment, analyzes and interprets the results.     
6. PO6. Possesses the necessary qualifications to carry out interdisciplinary work either individually or as a team member. X    
7. PO7. Accesses information, performs literature search, uses databases and other knowledge sources, follows developments in science and technology. X   
8. PO8. Performs project planning and time management, plans his/her career development.X    
9. PO9. Possesses an advanced level of expertise in computer hardware and software, is proficient in using information and communication technologies. X   
10. PO10. Is competent in oral or written communication; has advanced command of English.  X  
11. PO11. Has an awareness of his/her professional, ethical and social responsibilities.    X
12. PO12. Has an awareness of the universal impacts and social consequences of engineering solutions and applications; is well-informed about modern-day problems.   X 
13. PO13. Is innovative and inquisitive; has a high level of professional self-esteem.   X 

*1 Lowest, 2 Low, 3 Average, 4 High, 5 Highest

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