- Docente: Andrea Cavallini
- Credits: 6
- SSD: ING-IND/33
- Language: Italian
- Moduli: Andrea Cavallini (Modulo 1) Paolo Seri (Modulo 2)
- Teaching Mode: Traditional lectures (Modulo 1) Traditional lectures (Modulo 2)
- Campus: Bologna
- Corso: First cycle degree programme (L) in Electrical Energy Engineering (cod. 8610)
Learning outcomes
To provide the fundamentals of electrical materials from the point of view of short and long-term electrical and mechanical properties, particularly with regard to tests for material choice, design and construction of electrical components, such as power cables and capacitors.
Course contents
- Introduction, problems related to materials used in Engineering. Fields of application, particularly in electrical engineering. Properties and specifications.
- Conductive materials, properties. Main types of conductors. Non-ohmic conduction. Superconducting materials and crioresistives. Design criteria.
- Electrical insulating materials, properties. Discharges in gaseous liquid and solid insulations. Dielectric strength. Partial discharges. Thermophysical analysis. Presentation of the main aspects related to electrical insulation.
- Material aging. Modelling and accelerated testing. Mechanisms of aging. Life estimation of materials and electrical insulation systems.
- Materials and insulation systems of interest. Dimensioning of insulations based on deterministic and probabilistic criteria, the Weibull distribution.
- Magnetic materials, modeling and characterization, soft and hard materials. Main magnetic materials. Permanent magnets. Sizing of magnetic circuits
- Reliability issues and diagnostics of electrical systems
Teaching methods
Lectures and exercises in the classroom and in the laboratory of partial discharges, superconductors, dielectric strength and electrical conductivity.
Assessment methods
Oral examination
Teaching tools
Slides available to the student on the website UNIBO AMS Campus
Office hours
See the website of Andrea Cavallini
See the website of Paolo Seri