# 3176.23 - Introduction to Electrical Engineering

Course number
3176.23
Title
Introduction to Electrical Engineering
ECTS
7.5
Prerequisites
The students are expected to be well versed with complex number calculation and have passed a university course in electromagnetism.
Purpose
To enable students to understand basic electrical engineering including electric circuits, electric power, and the electric installation in a house.
Content
Kirchoff’s laws and systematic circuit calculations. Thevenin’s and Norton’s theorems and superposition. Resistances, capacitors and inductors. Voltage and current sources. Time varying voltages and currents. Stationary voltages and currents. Phasors and complex number calculation. 3-phase systems. The electrical installation in a house. Periodical functions and harmonics. Frequency caracteristics and filters. Diodes and rectifier circuits.
Learning and teaching approaches
Lectures, group work, problem solving and laboratory projects with reports.
Learning outcomes
After the course the student shall be able to: - Define voltage, current, and power. Describe independent and dependent sources. - Describe and use basic electrical laws. - Analyse serial, parallel, and mixed combinations of resistors. Apply voltage and current division rules. - Use superposition and Thevenin’s and Norton’s theorem. - Describe the connection between electrical current and voltage in L and C circuits. Calculate currents and voltages in RC and RL circuits. - Calculate stationary DC solution to circuits with R, L, and C. - Calculate the stationary AC-solution to circuits with R, L, and C, including series and parallel combinations. Use phasors and complex calculations. - Calculate three phase circuits. - Calculate active, reactive, and apparent power. - Understand the electrical installation in a house. - Draw frequency caracteristics (amplitude and phase) for simple filters. - Describe diode models: ideal model, piecewise linear model. - Describe rectifier circuits and know the ratio between AC and DC current. - Understand the impact of harmonics in power supply
Assessment method
Written examination during the exam week. Laboratory work has to be approved before the test.
Examination
External
Marking scale
7-
Bibliography
Allan R. Hambley: Electrical Engineering, Principles and Applications; 7th edition. Lecturers own notes.
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