CONTEXTUALIZATION OF THE SUBJECT



Electrical Technology in its most generalized meaning is the technological discipline that studies the applications of electricity. It covers, from the point of view of the practical use of electricity, the study of the phenomena electrical and electromagnetic included in three large fields of knowledge and experience:



1.- The concepts and scientific laws that explain the operation and behavior of the different devices, receivers and electrical machines, with respect to the physical phenomena that occur in them.



2.- The laws, theorems, principles and techniques of analysis, calculation and prediction of the behavior of circuits electrical.



3.- The elements with which circuits, devices, machines and electrical installations are assembled and built: representation, arrangement, normalization, connections and characteristics.



Because the applications of electricity are widely used in any activity in the sectors domestic, services, construction and industrial, the contents must respond to a rigorous list of the concepts and procedures that are the root of the ways of thinking and doing of any engineer Let it be your field of work.



The understanding and adequate resolution of Electrical Technology problems will allow us to adequately address the management of electrical energy and its installations in civil works.



Therefore, this subject can be considered a functional tool that will allow obtaining the skills raised in this Degree of Civil Engineering.



PREVIOUS KNOWLEDGE FOR THE SUBJECT



Math



1.- Temporal sinusoidal functions.



a) Maximum value, period, frequency.



b) Same origin of times for all functions. Go from sines to cosines and vice versa.



c) Advancement and delay between functions.



2.- Derivation and integration.



3.- Operation with complex numbers.



4.- Resolution of linear equations with real and complex coefficients.

M01CM04. Understanding and mastery of the basic concepts of the general laws of fields and electromagnetism and its application to solve engineering problems.



M02CM09. Ability to analyze the problems of electrical safety and health in construction works.



M02CM10. Fundamental knowledge about the electrical power system: energy generation, network transportation, distribution and distribution, as well as types of lines and drivers. Knowledge of leave regulations and high tension.

BLOCK 1. ELECTRICAL CIRCUITS



Topic 1.- Introduction to Electrical Circuits.



Part I. Fundamental magnitudes.

Definition of circuit. Burden. Current. Voltage or potential difference. Power and energy. Conservation principle of energy.



Part II. Ideal circuit components.

Active and passive components. Open circuit and short circuit. Sign convention. Voltage source. Source of current. Endurance. Coil. Condenser.



Part III. Kirchhoff's laws and techniques for solving circuits.

Kirchhoff's laws. Series and parallel association of resistors. Series association of voltage sources. Parallel association of current sources. Voltage and current dividers. Mesh method.



Topic 2.- Single-Phase Alternating Current.



Characteristics of alternating current. Phasor concept. RMS value and peak-to-peak value. Element response ideals in alternating current: resistance, coil and capacitor. Impedance and admittance. Association in series and in parallel of impedances. Resolution of alternating current circuits: Kirchhoff's laws, voltage and voltage and current dividers and mesh method. Instant power. Active power. Reactive power. Power triangle. Theorem of Boucherot. Useful power and performance. Power factor improvement.



Topic 3.- Three-Phase Alternating Current.



Advantages of three-phase current. Three-phase generators: star and delta or triangle connection. Three-phase loads: Symmetric load with star or delta connection. Power consumed by three-phase loads: star or star load triangle. Boucherot's theorem. Improved power factor: star or delta connection.



BLOCK 2. ELECTRICAL POWER SYSTEM.



Topic 4.- Introduction to the Electrical Power System. Calculation of Power Lines.



Importance and interest of electrical energy. General description of the electrical power system: generation, transportation and distribution. Single-line diagrams. Cables used in power lines. Electrical low voltage regulation (REBT). Calculation of the section of the lines according to the REBT: thermal criterion (overhead, underground and interior lines), maximum voltage drop (line with single load, with distributed load, fed at both ends, ring and direct current), ability to withstand short circuit currents.



Topic 5.- Electrical Protections. Switchgear. Electrical Safety.



Introduction. Electric risk. Safety against electrical risk: work without tension, with tension and in proximity. Grounding. Neutral regimes: TN, TT and IT schemes. Description of switchgear: characteristics, switch, automatic switch, disconnector, fuse, contactor and starter and differential switch. Switchgear calculation: protection against overloads, short circuits, fault and leakage currents and selectivity. Single-line diagrams.



Topic 6: Link Installations.



Definition and parts. Normative. Schemes. Rush. General Protection Fund. General Food Line. Centralization of counters. Individual referral. Power Control Switch. Individual Devices and Command and Protection Generals. Receiving facilities. Interior facilities. Exterior lighting installations.Temporary and provisional construction installations. Single-line diagrams.



Topic 7: Transformation Centers.



Definition and regulations. Classification. Components. Examples of configurations. Grounding.



Topic 8: Regulations Applicable to Electrical Installations.



Introduction. Directive 2009/72/EC. Electrical Sector Law. Regulation on Technical Conditions and Guarantees of Safety in High Voltage Electrical Installations



Practices:



Introductory practice: Electrical Risk Prevention. Description and Use of the Job Position.



Practice 1: Basic Measurements in Direct Current and Steady State. (Topic 1)



Practice 2: Analysis of Single-Phase Alternating Current Circuits. (Topic 2)



Practice 3: Analysis of Three-Phase Alternating Current Circuits. (Theme 3)



Practice 4: Electrical Installation of the School of Engineering of Gipuzkoa - Donostia (Topics 4, 5, 6, 7 and 8)



Practice 5: Calculation of Power Lines using Professional Software. (Theme 4)



Practice 6: Calculation of Electrical Installations in Residential Buildings using Professional Software. (Topic 6)

The material necessary to follow the subject (notes, proposed problems, practice scripts, etc.) is available on the eGela platform. It is recommended that students bring this printed material to class. In some cases, students must consult, analyze, etc. thematerial before classes.



TOOLS AND QUALIFICATION PERCENTAGES



In the master classes the most important theoretical aspects will be highlighted and analyzed, resolving the doubts of the student body. Likewise, activities will be developed to stimulate participation, discussion and critical analysis by the students.



In classroom practices, problems, questions, etc. will be resolved, with the active participation of the students.



Within the laboratory schedule, the students will carry out the required practices and deliver the corresponding activity questionnaire along with appropriate calculations and critical considerations. Students must bring laboratory the practice script printed and analyzed.



In addition, the subject's teaching staff will be available for consultation during tutorials hours indicated on the center's official website.



Two liberating controls will be carried out as long as a grade equal to or greater than 5.0 is obtained in each of them.

• Continuous Assessment System
• Final Assessment System
• Tools and qualification percentages:
  • Written test to be taken (%): 75
  • Realization of Practical Work (exercises, cases or problems) (%): 25

Two release controls will be carried out. The first of the controls will cover topics 1, 2 and 3 and will take place approximately in week 7 of the semester; the second will include the rest of the agenda and will be held in the last week of classes.



A calculator may be used during controls and exams. In controls and examinations, for the resolution of problems of topics 4 and 5, students will be able to use the following documentation (which will be available to them in the eGela platform):

- Complementary Technical Instructions of the Low Voltage Electrotechnical Regulations 6, 7 and 19.

- Maximum admissible currents in indoor installations.

- Document on cable designation.



Likewise, in the controls and exams, to solve the problems of topic 6, the students, in addition to the previous documentation, you may also use the following documentation (which will be available to you on the platform eGela):

- Complementary Technical Instructions of the Low Voltage Electrotechnical Regulations 10, 14 and 15.



Students may use any of these two evaluation methods:



1. Continuous evaluation. In this case the final grade will be obtained as follows:

- Written exam: 75%. The exam will have two parts:

- Part 1, topics 1-3: 30%

- Part 2, topics 4-8: 45%

- Laboratory practice questionnaires: 25%



The grade obtained in the written exam (without taking into account the controls), as long as it is equal to or greater than 4.0, will be will be averaged to calculate the final grade. The controls carried out will be liberatory as long as a grade is obtainedequal to or greater than 5.0 in each of them. In that case, the weight of each of them will be the one indicated for the part corresponding to the exam.



To pass the subject, the final grade is required to be equal to or greater than 5.0.



2. Final evaluation. In this case the final grade will be obtained as follows:

- Written exam: 75%. The exam will have two parts:

- Part 1, topics 1-3: 30%

- Part 2, topics 4-8: 45%

- Practical exam in the laboratory: 25%



In the final evaluation, the grade for the controls or laboratory practices will not be taken into account. The grade obtained in the written exam, as long as it is equal to or greater than 4.0, it will be averaged to calculate the final grade. For passing the subject requires that the final grade be equal to or greater than 5.0.



To waive continuous evaluation, students will have to write to the teacher before the start of the week 10 of the semester.



To resign from the call, it will be enough to not appear for the final test. In that case the rating will be "No Presented".

The evaluation will be carried out the same as in the ordinary call. In the case of obtaining a 5.0 or more on the exam ordinary writing of any of the 2 parts of the subject, that part will be released for the call extraordinary, applying the same procedure as with the controls to calculate the final grade.

Material available on the virtual teaching support platform: eGela.

Basic bibliography

ZUBIA I., MONASTERIO E., BANDRES L.M., ARRUTI P. Teoría de Circuitos. Servicio Editorial de la UPV/EHU.



ARRUTI P., MOLINA J., ZUBIA I. Relación de problemas específicos propuestos para Tecnología Eléctrica



GARCÍA TRASANCOS, J. "Instalaciones Eléctricas en Media y Baja Tensión." Madrid: THOMSON Paraninfo, 2009. 439

p. ISBN 978-84-283-3190-6



GARCÍA TRASANCOS, J. "Electrotecnia." 10ª ed. actualizada Madrid: THOMSON Paraninfo, 2009. 440 p. ISBN 978-

84-283-3194-4

In-depth bibliography

DORF, R.C. "Circuitos Eléctricos: introducción al Análisis y diseño". Marcombo

EDMINISTER J.A., NAHVI M. "Circuitos Eléctricos. Teoría y problemas resueltos." Serie Schaum McGraw-Hill.

MORENO ALFONSO N., CANO GONZALEZ R."Instalaciones Eléctricas de Baja Tensión". Madrid. THOMSON Paraninfo, 2004. 301 p. ISBN 84-9732-281-9.

COLMENAR A., HERNANDEZ J.L. "Instalaciones Eléctricas en Baja Tensión: Diseño, Cálculo, Seguridad y Montaje".Madrid: Ra-Ma, 2007. 954 p. ISBN 978-84-7897-840-3.

REBT Edición Comentada y Textos Técnicos Complementarios de Asea Brown Boveri SA

Journals

Energía: Ingeniería energética y medioambiental.
Montajes e instalaciones.
Electra.

Web addresses

Universidad del País Vasco / Euskal Herriko Unibertsitatea: www.ehu.eus
Escuela de Ingeniería de Gipuzkoa: www.ehu.eus/es/web/gipuzkoako-ingeniaritza-eskola
Departamento de Ingeniería Eléctrica de la UPV/EHU: https://www.ehu.eus/es/web/ingenieria-electrica
Norma UNE : www.aenor.es
ABB Productos Baja Tensión y Cuadernos de Aplicaciones Técnicas: new.abb.com/low-voltage/es
Red Eléctrica Española: www.ree.es
www.voltimum.es