Study Guide

Objective

The student:
- knows Y- and deltatransformations
- knows complex numbers
- knows the AC sine function
- knows and is able to calculate DC and AC power.

Content

- Y- and deltatransformations
- complex numbers
- AC sine function
- calculation of AC circuits
- the power in DC and AC circuits

Location and time

19.01.2026 - 08.03.2026

Materials

Course Compendium
Supplementary materials.

Teaching methods

Lectures
Calculus exercises
Self-studies

Exam schedules

The exam will be held in week 10.

Completion alternatives

Written examination and diagnostic test. The score from the diagnostic test can only increase the course grade if the course exam is passed.

Student workload

Total 81 hours, of which lectures/calculation exercises/exams 34 hours.

Evaluation scale

H-5

Assessment criteria, satisfactory (1)

Has the skill to transform between Y- and delta circuits
Has the skill to transform complex numbers between rectangular and polar form
Has the skill to calculate the frequency/period and angular frequency
Understands the importance of phase shift between current and voltage
Knows the relationship between active, reactive and apparent power

Assessment criteria, good (3)

Has an understanding of the relationship between rectangular and polar form
Has the skill to illustrate the relationship between time- and circular charts
Masters the calculation of the impedance of simple series and parallel circuits
Masters the calculation of the power of simple series and parallel circuits

Assessment criteria, excellent (5)

Can explain the relationship formulas
Has the skill to calculate the alternating quantities’ instantaneous values
Has the skill to calculate the quantities’ instantaneous values of reactive components
Knows the principles for power adjustment and phase compensation

Assessment methods and criteria

For course credit: At least 33.3% in the course exam (three exam opportunities are offered).

Assessment criteria, fail (0)

Less than 33.3% of total points.

Assessment criteria, satisfactory (1-2)

Grade 1: 33.3% - 47.2% of total points.
Grade 2: 47.3% - 61.1% of total points.

Assessment criteria, good (3-4)

Grade 3: 61.2% - 74.9% of total points.
Grade 4: 75.0% - 88.8% of total points.

Assessment criteria, excellent (5)

More than 88.8% of the total points.

Qualifications

No prerequisites