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Fundamentals of Electrical Engineering I

Course developer

Prior knowledge

Fizi2032, Physics I

Fizi2033, Physics II

Mate1029, Mathematics I

Mate1030, Mathematics II

Mate2034, Mathematics III

Mate2035, Mathematics IV

Replaced course

ETeh4037 [GETH4037] Fundamentals of Electrical Engineering I

Course abstract

When studying a course, students acquire knowledge of the theoretical bases of electrical knowledge: familiarity with linear DC circuits and techniques for calculating electrical circuits, non-linear DC circuits, their characteristics, applications and calculations, looks at magnetic circuits, their breakdown, materials, calculations. The physical nature of the sinusoidal current and its characteristics. Methods for calculating alternating circuits - the symbolic calculation method, vector chart

Learning outcomes and their assessment

Knowledge - of the theoretical fundamentals of electrical engineering and the theory of calculation of electrical circuits is understanding of physical processes in electrical circuits - test, laboratory works
Skills - to perform electrical calculations - test.
Kompetence - ability to calculate and evaluate the operation of electrical circuits - test.

Course Content(Calendar)

1. Introductory lecture. Ohm’s Law. Kirhof's laws (Lecture - 1h).
2. Serial and parallel connections. Power calculation (Lecture - 1h, Practical work - 2h).
3. Proportional-value method for calculating electrical circuits. Power balance (Lecture - 1h, Practical work - 2h).
1. Test: Proportional-value method (Practical work - 2h).
4. Contour current method for electric circuit calculations. Determinants, their use (Lecture - 1h, Practical work - 2h).
2. Test: Contour current method (Practical work - 2h).
5. Superposition method for electric circuit calculations. Principle of overlap (Lecture - 1h, Practical work - 2h).
3. Test: Superposition method (Practical work - 2h).
6. Replacing the parallel branches containing the EDS source with an equivalent branch (Lecture - 1h).
7. Two-Knot Method for Calculating Electrical Circuits (Lecture - 1h, Practical work - 2h).
4. Test: Two-Knot Method (Practical work - 1h).
8. Knot Potential Method for Calculating Electrical Circuits (Lecture - 1h, Practical work - 2h).
5. Test: Knot Potential Method (Practical work - 3h).
9. Nonlinear DC Circuits, Characteristics (Lecture - 1h).
10. Calculations of non-linear DC circuits (Lecture - 1h).
11. Magnetism. Magnetic Circuits. Magnetic materials (Lecture - 1h, Practical work - 2h).
12. Calculations of magnetic circuits (Lecture - 1h, Practical work - 2h).
6. Test: Calculations of magnetic circuits (Practical work - 2h).
13. Sinusoidal alternating current (Lecture - 1h).
14. Sinusoidal AC circuits, their calculations (Lecture - 1h, Practical work - 2h).
15. Symbolic method, complex numbers of vector algebra (Lecture - 1h, Practical work - 2h).
16. Voltage and current resonance (Lecture - 1h).

Laboratory Works:
1. Topology of substitution schemes -1h.
2. Scheme Elements and Parallel Connections -1h.
3. Indication of voltages and currents -1h.
4. DC circuit with variable load -1h.
5. Sinusoid parameters -1h.
6. Addition of sinusoids -1h.
7. Multiplication of sinusoids, active power -1h.
8. RLC circuit in AC circuit -1h.

Requirements for awarding credit points

Test.
Accumulative test, all tasks completed.
Regular attendance (at least 75%), tests, laboratory works and independent assignments.

Description of the organization and tasks of students’ independent work

Quality of work performance. Understanding what you have done. Ability to logically justify processes and explain the causes of errors. Ability to discuss what do you have learned.

Criteria for Evaluating Learning Outcomes

Quality of work performance. Understanding what you have done. Ability to logically justify processes and explain the causes of errors. Ability to discuss what do you have learned.

Compulsory reading

1. A. Galiņš. Elektrozinību teorētiskie pamati. Elektrisko ķēžu aprēķini. Mācību metodiskais līdzeklis. Jelgava: LLU, 2008. 120 lpp.
2. Elektrotehnikas teorētiskie pamati: Stacionāri procesi lineārajās ķēdēs. Briedis J., Dūmiņš I., LasisU.u.c.; K. Tabaka red. Rīga:Zvaigzne 1999. 300. lpp.

Further reading

1. Franco S. Electric circuits fundamentals. International edition. Saunders College Publishing 1995.-882 p.
2. Nahvi R., Sonderstand M. Student problems manual for electric circuits fundamentals. Saunders College Publishing, 1995-578p.
3. Dorf R.C. Introduction to electric circuits. 2nd edition. NewYork. JohnWiley&Sons, Inc. 1993. 872 p.

Notes

Compulsory course in full-time and part-time studies of professional higher education bachelor study program "Applied energy engineering"