Course detail

Fundamentals of Reliability in Electrical Engineering

FEKT-LZSEAcad. year: 2017/2018

The course deals with the issue of reliability, the basic concepts, the use of statistics in reliability calculations of reliability indicators. In addition, students learn the reliability models, backup systems and methods of reliability analysis. Another part of the course is devoted to the operating model and stress, degradation mechanisms in materials, elements and systems.

Learning outcomes of the course unit

The student is able to:
- define the basic concepts of reliability,
- describe methods of reliability analysis systems,
- explain the methods of reliability,
- explain the issue of risk in production,
- calculate selected indicators of system reliability.


The subject knowledge on the Bachelor´s degree level is requested.


Not applicable.

Recommended optional programme components

Not applicable.

Recommended or required reading

Základy spolehlivosti elektrotechnických výrob (CS)
Bednařík a kol.: Technika spolehlivosti v elektronické praxi (CS)
Montgomery, D. C.. Introducion to Statistical Quality Control. John Wiley, New York, 1996

Planned learning activities and teaching methods

Techning methods include lectures, computer laboratories and practical
laboratories. Students have to write a single project/assignment during the course.

Assesment methods and criteria linked to learning outcomes

upto 30 points from seminars (student will receive these points by the separate written work in the field of reliability and its presentation and also by solution of examples given in other independent works).
upto 70 points from written examination. The test focuses into the quality issues discussed in tutorials and seminars.

Language of instruction


Work placements

Not applicable.

Course curriculum

1. Introduction to the study of reliability. Basic conceps of reliability.
2. Mathematical statistics. Random variable, utilization of random variable distribution in reliability. Exponential distribution.
3. Quantile. Spot and interval estimation of parameters of the basic set. Chi-quadrat and Student's distribution.
4. Expentable objects. Reliability characteristics of expentable objects.
5. Repairable objects. Reliability characteristics of repairble objects.
6. Serial and parallel reliability models. Combined models.
7. Methods of creating reserves of systems. Forms and function of reserves. Static reserve. Dynamic reserve.
8. Introduction of quality system ISO 9000.
9. Degradation factors affecting electrical equipment. Relation of operating, partial and model stresses.
10. Degradation mechanisms in materials, element and systems.
11. Diagnostics methods.
12. Tests of reliability elements.
13. Tests of reliability equipments.


The aim of the subject is to make students familiar with the problems of reliability of electrotechnical products and introduction of the system of quality into electrotechnical production.

Specification of controlled education, way of implementation and compensation for absences

The content and forms of instruction in the evaluated course are specified by a regulation issued by the lecturer responsible for the course and updated for every academic year.

Classification of course in study plans

  • Programme EEKR-ML Master's

    branch ML-EVM , 1. year of study, summer semester, 5 credits, compulsory

  • Programme EEKR-ML1 Master's

    branch ML1-EVM , 1. year of study, summer semester, 5 credits, compulsory

  • Programme EEKR-CZV lifelong learning

    branch ET-CZV , 1. year of study, summer semester, 5 credits, compulsory

Type of course unit



26 hours, optionally

Teacher / Lecturer

Exercise in computer lab

18 hours, compulsory

Teacher / Lecturer

Laboratory exercise

4 hours, compulsory

Teacher / Lecturer

The other activities

4 hours, compulsory

Teacher / Lecturer