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Instructors: Prof. Dr.-Ing. Volker Hinrichsen; Dr.-Ing. Constantin Balzer; M.Sc. Tobias Trautmann
Event type:
Lecture
Org-unit: Dept. 18 - Electrical Engineering and Information Technology
Displayed in timetable as:
VL Überspann.-schutz
Subject:
Crediting for:
Hours per week:
2
Language of instruction:
Englisch
Min. | Max. participants:
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Course Contents:
- Introduction, basics and overview
- Determination of representative overvoltages
- Origin and classification of overvoltages
- Normal distribution of overvoltage probability and derivated variables
- Operating voltage and temporary overvoltages
- Slow front overvoltages
- Fast front overvoltages
- Characteristics of overvoltage protective devices
- Operation and design of metal-oxide surge arresters
- Travelling wave effect and protective distance of surge arresters
- Representative voltage and overvoltages in the case of using surge arresters
- Determination of coordination withstand voltage
- Insulation strength for different voltage shapes and geometric configurations (gap factors)
- Performance criterion
- Insulation coordination procedure
- Determination of required withstand voltage
- General remarks
- Atmospheric correction
- Safety factor for internal and external insulations
- Standard withstand voltage and testing procedures
- General remarks
- Test conversion factors
- Determination and verification of insulation withstand by type tests
- Table of test voltages and required clearances
Literature:
The related IEC standard can be borrowed during the lecture time. Lecture notes (in English) and other helpful materials can be downloaded from HST homepage: www.hst.tu-darmstadt.de.
Preconditions:
High Voltage Technology I and II
Further Grading Information:
Up-to-date information on lectures and exercises, as well as an updated time schedule, can be found on our homepage:
https://www.hst.tu-darmstadt.de/lehre_14/vorlesungen/ueberspannungsschutz_und_isolationskoordination/overvoltage_protection_and_isolation_coordination.de.jsp
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