Academic Year 2008/2009
- Docente: Giovanni Mazzanti
- Credits: 6
- SSD: ING-IND/33
- Language: Italian
- Teaching Mode: Traditional lectures
- Campus: Bologna
- Corso: Second cycle degree programme (LS) in Electric Engineering (cod. 0232)
Learning outcomes
The Course has the goal of providing a deeper insight into the technical characteristics of the specific devices that are used in the high voltage field. Emphasis is put on the technological and engineering modifications that occur when voltage reaches very high values. For this purpose, in the course the different types of voltage stresses that affect high voltage equipments (nominal voltage, lightning overvoltages, switching overvoltages), as well as the behavior of the various insulating systems in the presence of such stresses, are analized. Moreover, testing apparatus and methodologies are examined that are employed in the laboratory for reproducing the various voltage stresses that affect high voltage devices in service.
The Course is linked to the previous Courses of COMPONENTI E TECNOLOGIE ELETTRICHE , IMPIANTI ELETTRICI e MISURE ELETTRICHE.
Course contents
In summary, the topics that are treated during the course are the following:
· lightning overvoltages and the relevant tools for reducing them, as well as their effects.
· switching overvoltages and the relevant tools for reducing them, as well as their effects.
· high voltage circuit breakers.
· high voltage testing facilities for high voltage direct current tests, for high voltage alternate current tests and for high voltage impulse tests.
· Insulation coordination.
· Fundamentals about the physiological effects, the measurement and the calculation methods of electrical and magnetic fields from high voltage apparatus.
Readings/Bibliography
For a deeper insight, the following textbooks are suggested:
1) F.H. Kreuger, “Industrial High Voltage”, Delft University Press, 1991.
2) Pearmain, Gallagher, “High Voltage Engineering”, IEE Publ., 1982.
Teaching methods
Lectures and practical exercises in the classroom. "In-situ" magnetic field measurements relevant to transmission and distribution power lines.
Assessment methods
Oral examination (two questions chosen by the teacher)
Teaching tools
Notes edited by the students , derived from the lectures by the teacher, are provided, that also include technical and scientific references for gaining a deeper insight into the subject. They can be downloaded from the web at the following link
http://www.limat.ing.unibo.it/didattica/tecnaltten.htm
Links to further information
http://www.limat.ing.unibo.it/pers/mazzanti/giovanni.htm
Office hours
See the website of Giovanni Mazzanti