Electrical Installations
Keywords |
Classification |
Keyword |
OFICIAL |
Power |
Instance: 2006/2007 - 1S
Cycles of Study/Courses
Teaching language
Portuguese
Objectives
· To give the students a general survey on the electrical sector in Portugal.
· To present some equipment used in medium voltage facilities and, mainly, in low voltage installations considering the technological and functional characteristics. · To present the students the method of dimensioning electrical cables and their protections.
· To inform the students about the requirements of electrical projects concerning residential buildings.
Program
· Electrical Installations: some fundamental concepts.
· The electrical sector in Portugal: The topology of the networks (Generation, Transport and Distribution); Exploitation of the distribution networks in MV and LV; Electrical Legislation; The energy market
· Electromagnetic contactors. Electrical schemes.
· Underground cables. Tables of acceptable maximum currents.
· Evaluation of short circuit currents.
· Dimensioning of electrical cables and their protections. Circuit breakers and fuses.
· Relays: Types and characteristics.
· Overvoltages protection.
· People's security in electrical installations. Earth electrodes.
· Switchgear installations for medium voltage: Constitution and main types.
· Brief references about the execution of electrical projects concerning low voltage installations (residential buildings).
Teaching methods and learning activities
· Theoretical classes: Use of transparencies. These are available, as study material, to the students. The exhibition is illustrated with the visualization of the equipments, whenever such it is viable.
· Practical classes: Resolution of problems belonging to a list previously distributed the students.
· Visits to a medium voltage switchgear installation and to a factory of electrical cables manufacturing.
Evaluation Type
Distributed evaluation with final exam
Assessment Components
Description |
Type |
Time (hours) |
Weight (%) |
End date |
Subject Classes |
Participação presencial |
56,00 |
|
|
|
Total: |
- |
0,00 |
|
Eligibility for exams
Not to attend classes more then the allowed maximum number of lacks.
Calculation formula of final grade
CLASS_FINAL(NF) = 0,875 x CLASS_Test(NE) + 0,075 x CLASS_FirstWork + 0,050 x CLASS_SecondWork.
Examinations or Special Assignments
First Work: A problem to be solved about Dimensioning of electrical cables.
Second Work: A practical one.
Special assessment (TE, DA, ...)
Is applied the formula: NF = NE.
Classification improvement
CLASS_FINAL(NF) = 0,875 x CLASS_Test(NE) + 0,075 x CLASS_FirstWork + 0,050 x CLASS_SecondWork.