44606 - High Voltage Technique (Graduate Course)

Scheda insegnamento

  • Teacher Giovanni Mazzanti

  • Credits 6

  • SSD ING-IND/33

  • Teaching Mode Traditional lectures

  • Language Italian

Academic Year 2008/2009

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