Checking date: 02/09/2019

Course: 2019/2020

Electrical machines and installations
Study: Bachelor in Industrial Electronics and Automation Engineering (223)

Coordinating teacher: RODRIGUEZ AMENEDO, JOSE LUIS

Department assigned to the subject: Department of Electrical Engineering

Type: Compulsory
ECTS Credits: 6.0 ECTS


Students are expected to have completed
Fundamentos de Ingeniería Eléctrica
Competences and skills that will be acquired and learning results. Further information on this link
-Understanding fundamentals about electrical machines. Why do they work?. -Calculating voltages and currents in one transformer winding with data of voltages and currents at the other winding. -Characterizing primary properties of electrical motors in order to do a proper selection of the machine. -Acquiring fundamentals about medium and low voltage electrical facilities. -Understanding the importance of an appropriate design of medium and low voltage electrical facilities.
Description of contents: programme
1. Fundamentals of electromagnetics applied to ferromagnetic materials. 1.1. Electromagnetic theory review. 1.2. Hopkinson's Law and limitations. Coil inductances. 1.3. Saturation and hysteresis at ferromagnetic materials. 1.4. Eddy current losses. Power dissipation at ferromagnetic materials. 2. Transformers. 2.1. Principles about the ideal transformer. 2.2. Construction. 2.3. Equivalent circuit of a real transformer. 2.4. Voltage drop and efficiency. 2.5. Three phase transformers. Phase angle between windings. 2.6. Measurements and protection transformers. 2.7. Variacs. 3. Introduction to rotating machines. 3.1. Principles about rotating machines 3.2. Magnetic fields in the air gap. 3.3. Ferraris' Theorem. 3.4. Construction issues at AC machines. 4. The syncronous Machine. 4.1. Fundamentals. Applications. 4.2. Rotor with windings and permanent magnets. 4.3. Torque-speed characteristics. Start-up. 5. The asyncronous machine. 5.1. Fundamentals. Applications. 5.2. Equivalent circuit. 5.3. Torque-speed characteristics. Start-up. 6. Low-voltage (LV) facilities: cables and conductors. 6.1. Introduction to power distribution. 6.2. Conduction cross section calculations. 7. Internal and Linking facilities. 7.1. General sketches and definitions. 7.2. Shortcircuit currents calculations. 8. LV protection devices. 8.1. Protection against electrical shocks. 8.2. Automatic switches and fuses. 9. LV electrical facilities: Spanish regulations. 10. Medium voltage (MV) electrical grids: Equipment and substations. 10.1. Switching equipment. 10.2. Measurement and protection equipment. 10.3. Substations. 11. MV protections. 11.1. Systems. 11.2. Overcurrent protections. 12. Power quality. Practical sessions: 1.- The three phase transformer: connections, tests for equivalent circuit. 2.- The asycronous motor: start-up and current consumption. Power factor, rotating speed and efficiency for different loads. 3.- Ground resistance measurements: connections, calculations. 4.- Transformation facilities. Switching. Switching in substations. Safety rules.
Learning activities and methodology
- Learning in big groups (theoretical approach), learning in small groups (solving doubts), individual meetings to solve doubts (ask for them by email), individual student work. Theoretical knowledge (3 ECTS). - Laboratory learning (4 sessions), learning in small groups (solving practical problems), individual meetings to solve problems (ask for them by email), individual student work. Practical knowledge (3 ECTS).
Assessment System
  • % end-of-term-examination 55
  • % of continuous assessment (assigments, laboratory, practicals...) 45
Basic Bibliography
  • A.J.Conejo, J.M. Arroyo, F.Milano, N.Aguacil, J.L.Polo, R.García Bertrand, J.Contreras, A.Clamagirand, L.López;. ¿Instalaciones Eléctricas¿;. Mc. Graw-Hill..
  • Antonio Colmenar y Juan Luis Hernández. Instalaciones Eléctricas en Baja Tensión. Editorial Ra-Ma. 2007
  • Fraile Mora J.,. "Máquinas eléctricas",. , Mc-Graw-Hill..
  • Fraile Mora J., Fraile-Ardanuy J.;. "Problemas de Máquinas eléctricas";. Mc-Graw-Hill..
  • Guirado R., Asensi R., Jurado F., Carpio J.;. ¿Tecnología Eléctrica¿;. Mc Graw Hill..
  • Sanz Feito J.;. "Máquinas eléctricas";. Prentice Hall..
Additional Bibliography
  • Chapman, Stephen C.;. "Máquinas Eléctricas";. Mc.Graw Hill..
  • Fraile Mora, J;. ¿Electromagnetismo y circuitos eléctricos ¿;. Servicio de publicaciones E.T.S. de Ingenieros de Caminos de Madrid..
  • Sanjurjo Navarro, R.;. "Máquinas eléctricas",. Mc.Graw Hill..

The course syllabus and the academic weekly planning may change due academic events or other reasons.