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Electrotechnics

Code: PARC04     Sigla: ELECT

Áreas Científicas
Classificação Área Científica
CNAEF Electricity and energy

Ocorrência: 2021/2022 - 1S

Ativa? Yes
Unidade Responsável: Departamento de Engenharia Eletrotécnica
Curso/CE Responsável: Professional Technical Higher Education Courses in Networks and Information Systems

Ciclos de Estudo/Cursos

Sigla Nº de Estudantes Plano de Estudos Anos Curriculares Créditos UCN Créditos ECTS Horas de Contacto Horas Totais
TSPPAR 30 Plano de Estudos_2015_16 1 - 6 60 162

Docência - Responsabilidades

Docente Responsabilidade
Pedro José Ambrósio Lobato

Docência - Horas

Theorethical and Practical : 4,00
Type Docente Turmas Horas
Theorethical and Practical Totais 1 4,00
Pedro José Ambrósio Lobato 4,00

Língua de trabalho

Portuguese

Objetivos

The course unit of Electrotechnics is a sciences engineering field base. The learning of the methods and physical concepts underlying it, aims to develop in students fundamental skills that allow them to understand the electromagnetic phenomena and master the main techniques of electrical circuits analysis in direct and alternating current.

Resultados de aprendizagem e competências

At the end of this Curricular Unit, the student should be able to:

1- Understand and explain the principles that support electrostatic phenomena. Distinguish the concepts and know how to apply them.
2- Identify the electrical quantities and properties of stationary current. Differentiate the electrical components and apply, with discretion, techniques for analyzing direct current circuits.
3- Understand and explain the fundamentals of magnetostatics, as well as apply the laws that govern it.
4- Identify a variable electromagnetic field and describe its effects.
5- Analyze sinusoidal alternating single-phase circuits in steady state.
6- Perform laboratory procedures and practices in order to experiment, validate and consolidate theoretical knowledge.

Modo de trabalho

Presencial

Pré-requisitos (conhecimentos prévios) e co-requisitos (conhecimentos simultâneos)

Knowledge of solving systems of equations, analysis of complex numbers and basic concepts in the field of electrotechnics.

Programa

1. Introduction to Electrotechnics course.
2. Fundamentals of Electrostatics
Electric charge; electrostatic force; Coulomb's Law. Electric field; Electric potential; Electric tension. Condensers and dielectrics; capacitor association.
3. Stationary Electric Current
Electric Current Intensity; Electrical Resistance; Ohm's Law; Resistance Association; Voltage and current dividers. Electric power sources; Voltage and Current Sources; Electric circuit; Power and Energy; Joule's Law. Analysis of Resistive Circuits in DC. Kirchhoff's Laws. Overlay Theorem. Thevenin and Norton theorems.
4. Magnetostatics
Classification of magnetic materials; Ampere's Law; magnetic flux; Magnetomotive force; Magnetic reluctance; Magnetic saturation; coils; Analysis of Magnetic Circuits; Hopkinson's Law. Analogy between electric and magnetic circuits.
5. Variable Electromagnetic Field
Faraday's Law; Coefficient of self-induction and mutual induction; Transformer working principle; Operating principle of mechanical electric power generators; Operating principle of motors (Laplace force).
6. Circuits in Quasi-Stationary Regime
Fundamental notions: sinusoidal alternating quantities; average value and effective value; complex or symbolic representation of an alternating sinusoidal function. Analysis of Sinusoidal Single-Phase Alternating Circuits in Steady State: Circuit R; RL; CR; RLC; Notions of impedance and reactance; Association of impedances; Active, Reactive and Apparent Powers; Power factor. Three-phase circuits (balanced three-phase system).

Bibliografia Obrigatória

Máximo Rosado; Folhas teóricas de apoio às aulas teóricas-práticas
Nelson Martins; Introdução à Teoria da Eletricidade e do Magnetismo . ISBN: ISBN: 9788521202110

Métodos de ensino e atividades de aprendizagem

Theoretical-practical classes, where a teaching methodology is used in which pedagogical techniques of active learning are applied, involving the student more in the process of acquiring knowledge. On the one hand, it allows students, in the exercise of learning activities in the classroom environment, to interact and internalize the contents, developing appropriate attitudes and competences in line with the proposed objectives. On the other hand, the greater involvement of the student in the learning process and in the construction of their competences contributes to the development of their critical spirit and greater autonomy.

Laboratory classes, where practical works are carried out that allow the experimentation and validation of the subjects taught in the theoretical classes.

Software

PHET

Tipo de avaliação

Distributed evaluation with final exam

Componentes de Avaliação

Designation Peso (%)
Participação presencial 65,00
Trabalho laboratorial 35,00
Total: 100,00

Componentes de Ocupação

Designation Tempo (Horas)
Estudo autónomo 82,00
Frequência das aulas 60,00
Trabalho laboratorial 20,00
Total: 162,00

Obtenção de frequência

1- The continuous assessment regime
Students who intend to attend the UC under continuous assessment are required to carry out all assessments of the two components:
- Theoretical-practical component (Tp) is evaluated by tests. The Tp component grade is given by the average of the tests.

- Laboratory Component (L) with mandatory completion of laboratory work. The evaluation of the laboratories is composed of the performance in class and of the reports and other documents presented of the different laboratory works.


2- Assessment regime by exams with mandatory laboratory work
Students who choose the assessment system by exams will take a written test in which all the subjects corresponding to the Tp component will be evaluated. Examination tests are carried out at scheduled times at School level.

The minimum grade for the average of the Tests, the Laboratory Component and the Exam is 9.5 (nine point five points) .

3-Evaluation regime at the time of exams
The exam consists of two parts, one for the first part, and one for the second part. Students who did not pass the continuous assessment system and are obliged to take an exam for their approval, may decide not to take one of the parts of that exam and, in that part, they will be awarded the classification obtained in the corresponding test. The classifications obtained in the parts carried out in the exam replace those eventually obtained in tests for the calculation of the average Tp.

Fórmula de cálculo da classificação final

Final grade (NF) in the continuous assessment regime is given by:

NF = 65% Tp + 35% L;

The final grade (NF) in the assessment system by exams will be the weighted average of the classification obtained at the time of the exam (NE) and that obtained in the mandatory Laboratory component (L) or equivalent,

NF = 65% NE + 35% L ;

Students who have obtained NF ≥9.5 values ​​will be approved with the final classification (NF) determined by rounding up to units.

Observações

The contents and teaching materials to support the study can be found on the Electrotechnics page on moodle.


By the end of the second week of classes, students covered by special statutes (student worker, association manager, high-level athletes, etc.) must inform the UC responsible for their specific situation and respective implications for the evaluations.
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