29653 - Industrial Electrotechnics T

Learning outcomes

The main goal of this course is to provide the student with the fundamentals of Electrical Engineering. The basic concept and methodology in the field of stationary and slow varying electromagnetism will be discussed. Subjects concerning circuit analysis in D.C. and A.C. regime will be treated in detail. The basic theory for electromechanical devices will be discussed. The basics theory of electric power systems will be treated.

Course contents

Circuit Theory: Kirchhoff's Laws. Circuit Elements and their characteristics, resistor, capacitor, inductor, dependent and independent voltage and current sources, ideal transformer. Graph of a circuit, tree and co-tree, sets of fundamental cuts and fundamental loops. DC regime. Circuit Analysis Methods. Main theorems on linear network. Transient analysis. AC regime: Stainmetz transform, AC circuit analysis methods, AC power. Three-Phase Systems. Electric Power Systems: Generation and transmission. Safety basic concepts.

Electromagnetism: definitions and Maxwell equations in integral form. From fields theory to circuit theory. Magnetic circuits. Power losses in electric machines. Transformer. Basic principle. Internal and external equations. Equivalent circuits. Open circuit and short circuit test, efficiency measurements. Three-Phase transformer. Rotating field theory. Induction machine. Basic principle. Internal and external equations. Equivalence theorem for asynchronous machines. Equivalent circuit. Torque-speed and current-speed characteristics. Synchronous-speed machine. Basic principle. Internal and external equations.  D.C. machines. Basic principle. Internal and external equations. Equivalent circuits. Torque-speed and current-speed characteristics.

 

Readings/Bibliography

G. Rizzoni, “Principles and applications of electrical engineering”, McGrow-Hill, 2015.

Teaching methods

During the lessons the arguments shown in the program of the course are developed. The course contains class exercises.

Assessment methods

The exam consists of a written test. There are six exam sessions during the academic year: two in January/February, three in June/July, and one in September (there is also a special exam session in October, reserved for graduates of the December graduation session). The date, time, and location of the written tests are listed on the Alma-Esami website. Registration is mandatory. The lists on Alma-Esami open approximately one month in advance and close two days before the start of each exam session.

Each written exam lasts 90 minutes and consists of one theory question and two exercises. Students will be given a sheet of paper and the test text, on which they must fill in their last name, first name, and student ID. At the end of the time, the text (with the results obtained) and the sheet of paper (with a comprehensible solution to the exercises and the answer to the theory question) must be returned. Exercises may relate to: DC circuits, AC circuits, and three-phase systems. The theory question will focus exclusively on the topics covered in the course. The use of books, handouts, or notes is not permitted during the exam; the use of a calculator is recommended. The theory question and the two exercises are worth approximately ten points each. To pass, a minimum of three points is required for each one of the three parts. The exams will be evaluated based on the accuracy of the results and the solution procedures for the exercises, and on the relevance and completeness of the answer to the question.

The results will be published on Almaesami within approximately two weeks. The results will be fixed a week after the publication on the Almaesami website, except for exceptions (those who want to repeat the test must immediately notify the teacher by e-mail). Each result obtained remains valid for one year, unless it is replaced by a subsequent result.

Teaching tools

Solved examples and the lecture notes (in italian) are available in the section "Teaching resources on Virtuale".

Office hours

See the website of Massimo Fabbri