Ternopil Ivan Puluj National Technical University

Каф. електричної інженерії

Electrical Machines


1. Educational programs for which discipline is mandatory:

# Educational stage Broad field Major Educational program Course(s) Semester(s)
1 bachelor's 14. Електрична інженерія 141. Електроенергетика, електротехніка та електромеханіка (бакалавр) 3 1

2. The course is offered as elective for all levels of higher education and all educational programs.

3. Information about the author of the course

Full name Buniak Oleh
Academic degree Cand. Sc.
Academic title Assoc. Prof.
Link to the teacher`s page on the official website of the department
Е-mail (in the domain

4. Information about the course

Study hours structure Lectures: 54
Practical classes: 18
Laboratory classes: 18

Amount of hours for individual work: 120
ECTS credits: 7,0
Teaching language english
Form of final examination exam
Link to an electronic course on the e-learning platform of the university

5. Program of discipline

Description of academic discipline, its goals, subject of study and learning outcomes

Course goals: To give students theoretical knowledge and practical skills in the field of electrical machines and transformers, their electrical and mechanical properties, energy and thermal processes that take place in their work.
Learning objectivess: to study the structure and principle of operation of certain types of electrical machines and transformers; the main elements of construction and materials from which they are made; electromagnetic processes and physical phenomena in electric machines; the physical essence of the parameters of electrical machines and transformers and their impact on the mode of operation, characteristics and energy performance; ways to start and adjust the speed of electric machines; features of operation of electric machines and transformers; mathematical models of electric machines and transformers of different levels.

The place of academic discipline in the structural and logical scheme of study according to the educational program

Prerequisites. List of disciplines, or knowledge and skills, possession of which students needed (training requirements) for successful discipline assimilation

The theoretical basis for mastering the discipline are the mastered courses: "Higher Mathematics", "Physics", "Theoretical foundations of electrical engineering".

Contents of the academic discipline

Lectures (titles/topics)

Topic 1. Fundamentals of the theory of electric machines
Topic 2. Single-phase transformer.
Topic 3. Features of transformers
Topic 4. Operation of the transformer under load.
Topic 5. External characteristics of transformers.
Topic 6. Transient modes of transformers.
Topic 7. Modes of operation of an asynchronous machine.
Topic 8. Working processes of asynchronous machines.
Topic 9. Schemes of replacement of an asynchronous machine.
Topic 10. Mechanical characteristics of an induction motor.
Topic 11. Performance characteristics of an induction motor.
Topic 12. Starting asynchronous motors.
Topic 13. Speed ​​control of induction motors.
Topic 14. Excitation systems for synchronous machines.
Topic 15. Basics of synchronous machine.
Topic 16. Characteristics of a synchronous generator.
Topic 17. Power loss and efficiency of a synchronous machine.
Topic 18. Parallel operation of generators.
Topic 19. Characteristics of a synchronous motor.
Topic 20. Asymmetric modes of operation of synchronous generators.
Topic 21. Modes of operation of the machine constant.
Topic 22. Anchor covers of DC machines.
Topic 23. The main electromagnetic relations of a DC machine.
Topic 24. Switching in DC machines.
Topic 25. Power losses of DC machines.
Topic 26. Characteristics of DC generators.
Topic 27. Characteristics of DC motors.

Practical classes (topics)

Topic 1. Transformers.
Topic 2. Asynchronous machines.
Topic 3. Synchronous machines.
Topic 4. DC machines.

Laboratory classes (topics)

Laboratory 1. Investigation of power two-winding transformer by idling and short circuit.
Laboratory 2. Research of three-phase induction motor by direct loading method.
Laboratory 3. Research of three-phase synchronous generator.
Laboratory 4. Research of three-phase synchronous generator.

Learning materials and resources

1. Buniak O. Electric machines [electronic resource]: // Institutional repository Atutor (discipline code ID 5119): official site of Ternopil National Technical University - Ternopil, 2011.
2. Electrical Machine by Dr. P. S. Bhimbra (Highly Recommended for GATE / IES).
3. Electric Machines by Ashfaq Husain and Harroon Ashfaq.
4. Electric Machinery Fundamentals by Stephen Chapman.

6. Policies and assessment process of the academic discipline

Assessment methods and rating system of learning results assessment

Assessment by discipline is carried out in two modules. The first module: "Transformers", "Asynchronous machines". Maximum number of points: 37. Second module: "Synchronous machines", "DC machines". Maximum number of points: 38. Each module includes: successful performance and defense of laboratory works, performance of practical tasks on topics, development of topics for self-study, test control.

Table of assessment scores:

Assessment scale
(100 points)
(4 points)
90-100 Excellent А
82-89 Good B
75-81 C
67-74 Fair D
60-66 E
35-59 Poor FX
1-34 F
Approved by the department
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