Course Information
SemesterCourse Unit CodeCourse Unit TitleT+P+LCreditNumber of ECTS CreditsLast Updated Date
1ELK125Electrical Machines 12+2+03505.08.2025

 
Course Details
Language of Instruction Turkish
Level of Course Unit Associate Degree
Department / Program Electricity
Type of Program Formal Education
Type of Course Unit Compulsory
Course Delivery Method Face To Face
Objectives of the Course Explanation of the structures and working principles of transformers and Direct Current (DC) electrical machines, learning the equivalent circuits related to DC machines and transformers, and solving problems related to the subject
Course Content SDC Electrical machines structure and working principles, armature reaction and commutation in DC machines, losses and efficiency in DC motors, sample problem solutions, structure and working principles of transformers, structures of single and three phase transformers, sample problem solutions related to the subjects, special type transformers
Course Methods and Techniques Face to face and practical education
Prerequisites and co-requisities None
Course Coordinator Instructor Eray OĞUZ eray.oguz@gedik.edu.tr
Name of Lecturers Instructor Eray OĞUZ eray.oguz@gedik.edu.tr
Assistants None
Work Placement(s) No

Recommended or Required Reading
Resources N.Güzelbeyoğlu, Elektrik Makinaları I-II, İTÜ Kütüphanesi Yayınları. 1992
Prof.Dr.A. Faik Mergen, Dr. Sibel Zorlu, Electrical Machines I, (Transformers) , Birsen Publishing House
N. Oğuz, M. Gökkaya, "Elektrik Makineleri I" , MEB Yayınları, 1984.
Course Notes Lecture notes prepared by the instructor

Course Category
Mathematics and Basic Sciences %10
Engineering %30
Engineering Design %20
Science %10
Field %30

Planned Learning Activities and Teaching Methods
Activities are given in detail in the section of "Assessment Methods and Criteria" and "Workload Calculation"

Assessment Methods and Criteria
In-Term Studies Quantity Percentage
Mid-terms 1 % 30
Practice 1 % 30
Final examination 1 % 40
Total
3
% 100

 
ECTS Allocated Based on Student Workload
Activities Quantity Duration Total Work Load
Course Duration 14 2 28
Hours for off-the-c.r.stud 14 2 28
Mid-terms 1 14 14
Practice 14 2 28
Final examination 1 28 28
Total Work Load   Number of ECTS Credits 5 126

 
Course Learning Outcomes: Upon the successful completion of this course, students will be able to:
NoLearning Outcomes
1 To be able to explain the structures and working principles of DC electric machines
2 Solve problems related to equivalent circuits in DC machines
3 Ability to calculate losses in DA machines
4 Ability to calculate efficiency of DC generators and DC motors with different operating modes
5 To be able to explain the structures, working principles, different connections and working methods of single and three phase transformers
6 Ability to perform applications related to direct current machines and transformers

 
Weekly Detailed Course Contents
WeekTopicsStudy MaterialsMaterials
1 Magnetism, magnetic flux, and induction phenomenon, explanation of the electromotive force (emf) induced in a conductor and coil, structure of the DC machine, basic parts and functions Weekly lecture notes prepared by the Instructor
2 Types of excitation in DC generator, characteristics of series, shunt and compound excitation generators, problem solutions Weekly lecture notes prepared by the Instructor
3 Armature windings in DC machines, armature winding calculations and parallel winding properties, parallel armature winding diagrams Weekly lecture notes prepared by the Instructor
4 Characteristics of serial armature windings in DC machines, serial armature winding diagrams Weekly lecture notes prepared by the Instructor
5 Working principle of DC motor, back emf, speed of DC motor, changing direction of rotation, torque and mechanical power Weekly lecture notes prepared by the Instructor
6 Working characteristics of DC motor at no load and at different loads, starting Weekly lecture notes prepared by the Instructor
7 Investigation of losses, braking and efficiency in DC motor, sample problem solutions Weekly lecture notes prepared by the Instructor
8 Midterm
9 One-phase structures and operating principles of transformers, coils induced emf ´s calculation, the conversion rate and power definitions Weekly lecture notes prepared by the Instructor
10 The transformer is idle and loaded operation, phasor diagrams, equivalent circuits from loop, iron and copper losses, sample problems Weekly lecture notes prepared by the Instructor
11 Transformer Losses and efficiency, Weekly lecture notes prepared by the Instructor
12 The three-phase transformer core and winding structures, linking groups, voltage, current relations Weekly lecture notes prepared by the Instructor
13 Three-phase transformers connected in parallel and charge distribution, sample problems Weekly lecture notes prepared by the Instructor
14 Auto transformers, welding transformers, voltage and current (measure) transformers Weekly lecture notes prepared by the Instructor
15 Auto transformers, welding transformers, voltage and current (measure) transformers Weekly lecture notes prepared by the Instructor

 
Contribution of Learning Outcomes to Programme Outcomes
P1 P2 P3 P4 P5 P6 P7 P8 P9 P10 P11 P12 P13
C1 5 5 4 1 5 1 4 1 4 1 1 1 5
C2 5 4 4 1 4 1 5 1 5 1 1 1 5
C3 5 5 3 1 3 1 3 1 3 1 1 1 5
C4 4 5 5 1 5 1 5 1 5 1 1 1 5
C5 3 4 5 1 3 1 3 1 5 1 1 1 5
C6 5 5 5 1 5 1 5 1 4 1 1 1 5

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