13E013ENT - Power Transformers

Course specification
Course title Power Transformers
Acronym 13E013ENT
Study programme Electrical Engineering and Computing
Module Power Engineering
Type of study bachelor academic studies
Lecturer (for classes)
Lecturer/Associate (for practice)
Lecturer/Associate (for OTC)
ESPB 5.0 Status elective
Condition "Project-Power Transformer Design" is recommended. Consultation are provided during semester (ESPB=2)
The goal Acquiring the basic knowledge of construction and operation principles of power transformers, their use and behavior in normal and emergency modes in the EPS, basic types in respect to their use and on site monitoring.
The outcome Mastering the techniques for selection of power transformers in respect to plant characteristics; the ability of analysis and prediction of behavior of transformers in various operational modes; monitoring, testing and maintenance of transformers.
URL to the subject page
Contents of lectures Operation principles, construction, main equations. No-load operation and no-load and short circuit tests. Equivalantly scheme. Losses and power efficiency. Voltage drop. Thermal problems. Connection, short circuit current, mechanical forces, overvoltages. Three phase winding connections. Parallel operation. Asymmetric modes, special transformers. Control, prevention, maintenance, protection.
Contents of exercises No-load and short circuit tests in laboratory. Measurement of power losses, determination of equivalent circuit parameters and voltage ratio. One day visit to factory of power transformers "MINEL Transformers".
  1. Đ. Kalić, R. Radosavljevic: Transformers (in Serbian)
  2. Đ. Kalić, R. Radosavljevic: Transformers, a collection of tasks for auditory exercises 9in Serbian)
  3. R. Radosavljevic: Exercise guidelines for testing of power transformers (in Serbian)
  4. CSP Standards IEC 60076-x, and others
  5. J.H.Harlow: Electric power transformer engineering, CRC Press
Number of hours per week during the semester/trimester/year
Lectures Exercises OTC Study and Research Other classes
3 1 0.5
Methods of teaching Lectures, exercises, laboratory, visit to factory
Knowledge score (maximum points 100)
Pre obligations Points Final exam Points
Activites during lectures 10 Test paper 30
Practical lessons 10 Oral examination 20
Colloquia 30
Seminars 0