Study Guide

Objective

The student:
- knows the symmetrical three-phase system
- knows the unsymmetrical three-phase system
- is familiar with power calculation in the three phase system.

Content

- single-phase AC circuits (repetition)
- three-phase AC circuits, Y-coupling
- three-phase AC circuits, D-coupling
- three-phase AC circuits, power calculation

Location and time

28.08.2023– 13.10.2023

Materials

Compendium
Supplementary material.

Teaching methods

Lectures
Calculation exercises
Diagnostic tests
Self studies

Exam schedules

The exam is arranged week 40.

Completion alternatives

Written exam and opportunity for bonus points through diagnostic tests..

Student workload

A total of 81 hours, of which lectures / calculation exercises 36 hours (weeks 35 - 40).

Evaluation scale

H-5

Assessment criteria, satisfactory (1)

Understands and can perform basic matrix operations
Can calculate voltages and currents in Y- and D-connected symmetrical three-phase systems
Can calculate voltages and currents in Y- and D-connected asymmetrical three-phase systems
Can calculate different powers in symmetrical networks

Assessment criteria, good (3)

Can perform matrix operations and apply this in practical applications
Understands the principle of the neutral conductor importance in a symmetrical three-phase-system
Understands the principle of the neutral conductor importance in a asymmetrical three-phase-system
Can calculate different powers in asymmetric three-phase systems

Assessment criteria, excellent (5)

Understands and can perform more advanced matrix operations
Has the skills for theoretical analysis and calculation of different types of symmetrical three-phase loads
Has the skills for theoretical analysis and calculation of different types of asymmetrical three-phase loads
Has the skills and knows the principles for calculation of compensation of reactive power in three-phase systems

Assessment methods and criteria

Written exam (33.3 % for passing grade) and diagnostic tests..
In the case of an approved course exam, the bonus points from the diagnostic tests replaces the exam task with the lowest score.
The bonus points do not apply at the re-examination.

Assessment criteria, fail (0)

Less than 33.3 % of the total score.

Assessment criteria, satisfactory (1-2)

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

Assessment criteria, good (3-4)

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

Assessment criteria, excellent (5)

More than 88.8 % of the total score.More than 88.8 % of the total score.

Qualifications

Basics in Electrical Engineering - AC