Electrical Engineering

Code

ME-ELE1

Version

3.1

Offered by

Mechanical Engineering

ECTS

Prerequisites

Mechanical Engineering: MA-MAT1 and MA-DYN1
Global Business Engineering: GB-ENBM2, GB-MAT3 and ME-DYN1

Main purpose

The main purpose is to gain knowledge about electrical systems, installations and to be able to calculate and select correct electric motors.

Knowledge

After the course, the student can expound:

• Simple DC and AC circuits (complex impedance, current and voltage, phasor analysis, load reduction and complex power)
• Single and three phase AC systems
• Single phased transformers
• Three phase systems and the power grid, power in balanced systems
• DC motors, types and speed control
• AC motors:
o Construction, temperature and isolation classes, thermal protection, contactors
o Start of motor, load types, start methods, start restrictions, DOL start, Y-D start, soft starters and frequency converters.

Skills

After the course, the student has acquired skills in:

• Analysis of DC and AC systems included in mechanical system
• Loads Analysis

Competences

The student has acquired competence in selecting and dimensioning the electrical part of mechanical drivelines.

Topics

Teaching methods and study activities

4 lessons a week for 12 weeks.
The workload for the student, expected to be 138 hours.
The didactic method is classroom teaching, assignments and homework.

Student Activity Model

According to the study activity model, the amount of work is distributed in:

Category 1: Initiated by the teacher with teacher and student participation: 42 hours - 30%
Category 2: Initiated by the teacher with student participation: 76 hours - 55%
Category 3: Initiated by students with student participation: 20 hours - 15%
Category 4: Initiated by students with teacher and student participation: 0 hours - 0%

Resources

ABB Motor guide for low voltage motors (Third edition 2014)

Giorgi Rizzoni: Fundamentals of Electrical Engineering, Chapter seven (First Edition)

Lecturer notes

Evaluation

Examination

Requirements for attending examination
None

Type of examination:
Individual oral examination where the student must explain how to solve a given problem.
The problems are known in advance
The duration is approx. 20 minutes.
No preparation time for the exam.
The exam papers are handed out at least one week before the exam.
The exam counts 100% of the final grade.
Internal Censor

Allowed tools:
None, however the course textbooks will be available in the examination room

Re-examination:
As ordinary