ELECTRICAL POWER SYSTEMS B
Stampa
Enrollment year
2017/2018
Academic year
2017/2018
Regulations
DM270
Academic discipline
ING-IND/33 (ELECTRICAL ENERGY SYSTEMS)
Department
DEPARTMENT OF ELECTRICAL,COMPUTER AND BIOMEDICAL ENGINEERING
Course
ELECTRICAL ENGINEERING
Curriculum
PERCORSO COMUNE
Year of study
Period
2nd semester (05/03/2018 - 15/06/2018)
ECTS
6
Lesson hours
52 lesson hours
Language
Italian
Activity type
WRITTEN AND ORAL TEST
Teacher
MONTAGNA MARIO (titolare) - 6 ECTS
Prerequisites
Basic knowledge of electrical plants and electrical machines.
Learning outcomes
Learning the basic techniques for the analysis and design of electrical distribution systems and users with particular reference to the following topics: calculation of short circuit currents, overcurrents and overvoltages following faults, calculation methods for networks of medium to large size.
Course contents
1. Review of basic electrical engineering concepts
Electrical circuits in sinusoidal steady state conditions. Three-phase systems and method of symmetrical components. Theorems on electrical networks.
2. Generalities on electrical plants
Classification and structure of the electrical systems. Generating plants; networks of high voltage transmission, the primary distribution, medium and low voltage distribution; civilian and industrial plants.
3. Components of the electrical systems
Models of the most important components of an electrical plant. Transmission lines; calculation of the fundamental constants. Single-phase and three-phase transformers; method of relative values (per-unit); sequence impedances; models used for the calculation of short circuit currents. Synchronous machine model; synchronous impedances and sequence impedances. Basic characteristics of the induction motor model. Switching and protection.
4. Calculation of short-circuit currents
Calculation of the symmetrical three-phase short circuit currents
Study of three-phase systems with the method of symmetrical components; sequence networks. Calculation of unsymmetric short circuit currents. Neutral state in three-phase systems; short circuit currents and surges; fault protection with and without ground.
5. General equations of networks in continuous operation
Using the general equations of the networks for the calculations of short circuit and distribution of power flows. Calculation methods suited to the implementation on a computer.
Teaching methods
Lectures and practical classes.
Reccomended or required readings
G. Granelli. Dispense di Impianti Elettrici B.
G. Granelli, M. Montagna. Fondamenti di Impianti Elettrici, Vol. I. Cisalpino - Monduzzi Editoriale, Milano, 2013.
N. Faletti, P. Chizzolini. Trasmissione e distribuzione dell'energia elettrica, 2 volumi.
F. Iliceto. Impianti Elettrici, Volume I. Pàtron Editore, Bologna.
V. Medved, R. Schinco. Le correnti di corto circuito negli impianti elettrici AT, MT e BT. Editoriale Delfino, Milano.
Manuale Cremonese di Elettrotecnica, Vol. III. Edizioni Cremonese, Firenze.
Comitato Elettrotecnico Italiano. Norme CEI 11-1, 64-8 , 11-25.
Assessment methods
The final examination consists of a written test and an oral examination (possibly held in written form).
Further information
The final examination consists of a written test and an oral examination (possibly held in written form).
Sustainable development goals - Agenda 2030