Course code ETeh2015

Credit points 4.50

Electrical Engineering and Electronics

Total Hours in Course120

Number of hours for lectures32

Number of hours for laboratory classes24

Independent study hours64

Date of course confirmation19.09.2012

Responsible UnitInstitute of Engineering and Energetics

Course developer

author Inženiertehnikas un enerģētikas institūts

Liene Kanceviča

Dr. sc. ing.

Replaced course

EeTkB007 [GEIKB007] Electrical Engineering and Electronics

Course abstract

The aim of the course is to know: basic laws of electrical circuits; alternating current - fundamental concepts; graphical - analytical methods of calculation; electrical measurement; transformers and energy supply; electrical sources of light, heat and mechanical energy; control and protection of electrical appliance; elements of electronics; rectifiers, amplifiers, generators of oscillation; power electronics technology.

Learning outcomes and their assessment

1. Knowledge - operating principles and use of electrical and electronic equipment – exam;
2. Skills - to choose research and calculation methods corresponding to a specific research, substantiating their choice, to interpret the results of data processing – test; to formulate and critically evaluate the basic issues of electrical engineering and electronics, to connect various types of electrical equipment to the network, to perform measurements and theoretical calculations of the operating parameters of electrical systems – practical and laboratory works;

3. Competence - to orientate in electrical and electronic equipment and systems, electrical measurements and calculations, to analyze calculation results – exam.

Course Content(Calendar)

1. Introduction. Electrical safety. Exposure to electric current. 2 h
2. Basic concepts of electrical engineering and electronics. The main components of electrical circuits, characteristics, measurement of electrical quantities. 3 h
Test 1 - Electric circuit operating modes. 1 h
3. DC and AC. Basic laws and operating modes. 2 h
Test 2 Test on the subject learned in lectures. 1 h
4. Magnetic circuits. Electromagnetic induction. 2 h
5. Sinusoidal alternating current - its generation and characteristics. Calculation methods of electrical circuits. 2 h
Test 3 - Series connection: active, inductive, capacitive resistance. 2 h
6. Concepts of electrical resistance and power of AC circuits. 1 h
Test 4 - Parallel connection: active, capacitive and inductive resistors. 2 h
7. Capacitor connections. Parallel, series and mixed connection. 3 h
Test 5 - Mixed capacitor connections. 2 h
8. Three-phase electrical systems. Stars and triangles. 1 h
Test 6 Test on the subject learned in lectures. 1 h
9. Transformers. Construction and operating principle of asynchronous machine. Mechanical characteristic of an asynchronous machine. 2 h
10. Electrical networks. The concept of electricity supply. 1 h
Test 7 Test on the subject learned in lectures. 1 h
11. Basic elements of electronic equipment. AC rectifiers and filters. 1 h
12. Introduction to the theory of electric semiconductors. Electronic switches. Electronic signal amplifiers and generators. Pulse equipment. Photovoltaic equipment. 3 h
Laboratory works:
1. Safety equipment and electrical safety instruction – 1 h.
2. Electrical equipment connection to the network – 2 h.
3. Measurement of current, voltage, power and energy in single-phase network, application of current measuring transformer – 2 h.
4. I, U, P, Q, S, cosφ complex measurement. Electrical resonance (with graphic part) – 2 h.
5. Investigation of three-phase network star and triangle circuit (with graphic part) – 2 h.
6. Three-phase active power measurement – 2 h.
7. Transformer research – 2 h.
8. Research of asynchronous machine, determination of stator winding ends – 2 h.
9. Starting the asynchronous motor with a contactor and switching the stator Y-Δ (Ip measurement) – 2 h.
10. Electric drive control, control redundancy, reversal and single-phase mode – 2 h.
11. Semiconductor diode - 2 h.
12. Bipolar transistor - 1 h.

13. Defense of laboratory works - 2 h.

Requirements for awarding credit points

Written exam. Exam consists of:
Two questions of the theoretical part;
The task of the topics learned in the study course in practical works.

The student is admitted to the examination only if all tests and laboratory works are counted.

Description of the organization and tasks of students’ independent work

Preparing for tests

Criteria for Evaluating Learning Outcomes

Evaluation of study results is based on the student's answers during the examination. It is also possible to get a maximum rating of 10 (excellent) if all the work is done on time, and the student has given the appropriate knowledge.

Compulsory reading

1. Klegeris I. Ž. Lietišķā elektrotehnika: studiju materiāli. Jelgava: LLU, 2008. 78 lpp.
2. Galiņš A. Elektrozinību teorētiskie pamati. Jelgava: LLU, 2008. 120 lpp.
3. Lagzdiņš Ģ.E. Pamatkurss elektrotehnikā. Rīga: Jumava, 2004. 217 lpp.
4. Leščevics P., Galiņš A. Elektronika un sakaru tehnika: mācību līdzeklis lietišķajā elektronikā. Jelgava: LLU, 2008. 121 lpp.

5. Bird J. Electrical and Electronic Principles and Technology. 6th edition. New York: Routledge, 2017. 526 p.

Further reading

1. Raņķis I., Žiravecka A. Industriālās elektronikas pamati. Rīga: RTU, 2007. 212 lpp.

2. Mikroelektronikas komponentes un pamatshēmas. Tehn. red. A. Galiņš, A. Kaķītis, A. Vārna. Valmiera: VPIC izd., 2003. 512 lpp.

Periodicals and other sources

1. Журнал «РАДИО» ISSN-0033-765X. [tiešsaiste] [skatīts: 03.10.2019.]. Pieejams:

2. Журнал «Современные технологии автоматизации» ISSN 0206-975Х. [tiešsaiste] [skatīts: 03.10.2019.]. Pieejams:


The course includes in the compulsory part of the TF academic bachelor study program "Agricultural Engineering" and in the compulsory part of the professional bachelor study program "Machine Design and Manufacturing".