Letzte Änderung : 12.12.2025 13:32:09   


Code:260300
Module title:Electrical Power Devices
Version:1.0 (12/2019)
Last update: 12.12.2023
Responsible person: Prof. Dr. techn. Kornhuber, Stefan
S.Kornhuber@hszg.de

Offered in 2 study courses:
Electrical Power Systems (B.Eng.) valid from class 2018
Electrical Power Systems (B.Eng.) valid from class 2021

Semester according to time table:SoSe+WiSe (summer and winter semester)
Module level:Bachelor/Diplom
Duration:1 semester
Status:elective core module (specialization)
Place where the module will be offered:Zittau
Language of Instruction:English

Workload* in SCH **
semester
hoursECTS
Credits
1
2
3
4
5
6
7

L
S
P
O
L
S
P
O
L
S
P
O
L
S
P
O
L
S
P
O
L
S
P
O
L
S
P
O
150
5
5.0



2
2
1
0


*Overall workload per module (1 ECTS credit corresponds to a workload of 30 hours)
**One semester credit hour (SCH) corresponds to a workload / class meeting of 45 minutes per week in a semester

Self study time in hours
total

94



Learning and teaching methods:The communication of knowledge/expertise takes the form of lectures and seminars.


Exam(s)
Assessments Major oral exam 20 min 70.0%
Major exam (laboratory work)
 - 
 30.0%


Syllabus plan/Content:
  • Contact theory: contact model according to Holm and pollution layer resistance, warming to contact, contact forms and materials
  • Switching arc: Static and dynamic arc, potential, ignition and extinguish of the AC and DC arc, transient behavior, re-ignition Mechanismen
  • Switching operations: turning on and off of short-circuit currents, long and short distance short circuit, phase opposition, switching off small inductive and capacitive currents
  • Low-Voltage Switchgear: application and requirements, (current limiting) circuit breakers, switch disconnectors, disconnectors, line proctection circuit breakers, RCD
  • fuses: current-time integral, melting time-current characteristics, current limiting, selectivity, backup protection
  • HV Switchgear: application and requirements, circuit breakers, extinguishing principles, switch actuators, multiple interruption, separating path, circuit breakers, disconnectors, earthing switches, special switchgear (OLTC, switches, HVDC switch)
  • Switchgear testing, Switchgear diagnosis
  • surge protection devices: application and requirements, arresters with spark gaps, metal oxide arrestors
  • switchgear: application and requirements, low, medium and high voltage Equipment

Learning Outcomes:
Subject-specific skills and competences:After completing the module, students are able to
  • Recognition of requirements and solutions for the contact (current path) and the ignition, control and extinguishing of the switching arc (as a switching element)
  • Understanding expertise on the structure and function of switching devices of the electric power supply
  • Knowledge about the basic selection and dimensioning guidelines for electric power switchgear
  • Understanding and preparing of self-doing of measurements in relation to switch function and switch diagnostics
Generic competences (Personal and key skills):After completing the module, students are able to
  • Recognition of requirements and solutions for the contact (current path) and the ignition, control and extinguishing of the switching arc (as a switching element)
  • Understanding expertise on the structure and function of switching devices of the electric power supply
  • Knowledge about the basic selection and dimensioning guidelines for electric power switchgear
  • Understanding and preparing of self-doing of measurements in relation to switch function and switch diagnostics

Pre-requisites:None

Literature:
  • Schufft,Wolfgang, and Jürgen Backes. Taschenbuch Der Elektrischen Energietechnik: ...102 Tabellen.München: Hanser, (2007):
  • Küchler, Andreas: High voltage engineering: fundamentals, technology, applications. New York, NY : Springer Berlin Heidelberg, 2018 — ISBN 978-3-642-11992-7
    Further literature is notified in the lecture