Universidad de Jaén

Schedule of theory

 

Teaching unit 1: Overhead power lines

 

Block 1: Overhead power lines constituent elements

 

Topic 1: Conductors

 

1.- Introduction

 

2.- Electrical and mechanical characteristics

 

3.- Phase conductors

 

4.- Ground conductors

 

Topic 2: Supports

 

1.- Introduction and general characteristics

 

2.- Classification

 

3.- Types of supports

 

Topic 3: Insulators and Hardware

 

1.- Introduction

 

2.- Insulators

 

3.- Hardware

 

4.- Type Chains

 

5.- Level of insulation

 

6.- Electrical calculation of the chain of insulators

 

7.- Mechanical calculation of the chain of insulators

 

8.- Distribution of potentials in chains of insulators

 

Block 2: Mechanical calculations on overhead power lines

 

Topic 4: Charges and Overcharges to Consider in a High Voltage Airline

 

1.- Introduction

 

2.- Permanent charges

 

3.- Effort of the wind on the airlines

 

4.- Effect of ice on airlines

 

5.- Combined effect of wind and ice

 

Topic 5: Calculating conductors

 

1.- Catenary

 

2.- Control span or canton

 

3.- Maximum allowable strength

 

4.- Vibratory phenomena

 

5.- Maximum arrows in phase conductors and earth cables

Topic 6: Calculation of supports

1.- Efforts that occur in the supports

2.- Calculation hypothesis

3.- Security coefficients

4.- Development of the calculation hypotheses by type of support

5.- Calculation of supports with change of conductor

6.- Calculation of supports in change of zone

7.- Calculation of supports in crash or by shunt

8.- Safety distances in the support

9.- Situation of the heights of the different elements in the supports

10.- Change of conductor plane  

Topic 7: Choice of standard supports  

1.- Use of catalogs

2.- Step of vertical efforts to horizontal

3.- Change of efforts according to safety coefficients

4.- Choice of crosspieces and assemblies

5.- Choice of support for efforts

6.- Optimization of the election

7.- Situation of the heights of the different elements in the supports  

Topic 8: Calculation of Foundations  

1.- General characteristics

2.- Start-up check

3.- Compression check

4.- One block foundations

5.- Fractionated foundations  

Topic 9: Measurements and area of occupancy  

1.- Measurements

2.- Occupancy area

3.- List of goods and rights  

Topic 10: Graphics of use of supports and crossbars  

1.- Generalities

2.- Support of alignment-suspension

3.- Support of alignment-mooring

4.- Alignment-anchor support

5.- Angle-Suspension Support

6.- Support of angle-mooring

7.- Angle-anchor support

8.- Line start-end support

9.- Graphics of use of crossbars

Block 3: Electrical calculations on overhead power lines    

Topic 11: Introduction to Electrical Calculations  

1.- Fundamental constants of the lines  

2.- Constant characteristics derived from fundamental  

3.- Current density of a conductor  

4.- Maximum permissible intensity  

5.- Determination of the section of a conductor by maximum power  

6.- Determination of the section of a conductor by voltage drop    

Topic 12: Short lines  

1.- Vector diagram. Voltage fall  

2.- Types of lines  

3.- Power transmission  

4.- Regulation  

5.- Maximum power with a certain regulation  

Topic 13: Middle lines  

1.- T-equivalent method  

2.- Equivalent method in P  

Topic 14: Long lines  

1.- Introduction  

2.- Voltage and current at any point on the line  

3.- Application of hyperbolic forms  

4.- Characteristic values of a line  

5.- Limit operation of a line  

6.- Direct wave and reflected wave  

7 .- Transmission line as two-port network  

Topic 15: Voltage regulation  

1.- Introduction  

2.- Relationship between the nature of the load, type of line and voltage drop  

3.- Regulation of the voltage in electrical lines. Methods of regulation  

4.- Advantages and disadvantages of static and synchronous capacitors  

5.- Calculation of the powers of the machines necessary to regulate  

Topic 16: Crown Effect  

1.- Introduction  

2.- Voltages that produce the corona effect  

Teaching unit 2: Underground high voltage lines  

Block 4: Constituent elements of high voltage underground lines    

Topic 17: General of high voltage underground lines    

1.- Standard voltages  

2.- Levels of insulation  

3.- Cables  

4.- Accessories  

Topic 18: Types of installations in underground lines    

1.- Introduction  

2.- Directly buried  

3.- In tubing  

4.- In galleries  

5.- In atarjeas or registrable channels  

6.- In trays, supports, moths or directly attached to the wall  

7.- In the aquatic bottoms  

8.- Air-ground conversions  

Block 5: Electrical calculation in underground high voltage lines  

Topic 19: Calculation of drivers  

1.- By voltage drop  

2.- By maximum intensity in steady state  

3.- By short circuit  

Unit 3: Transformation centers and substations  

Block 6: Constituent elements of transformation centers and substations  

Topic 20: High-voltage switchgear  

1.- Introduction  

2.- Nominal characteristics of the high voltage switchgear  

5.- Breakers  

6.- Switches and circuit breakers  

7.- Fuse cutouts  

8.- Protection relays  

9.- Blocking coils

Topic 21: Sizing of conductors and rods  

1.- Introduction

2.- Conductors used

3.- Bare drivers

4.- Sizing by voltage drop

5.- Dimensioning by current density

6.- Dimensioning by short circuit

7.- Choice of the most profitable section

8.- Efforts caused by short circuits  

Block 7: Transformation centers  

Topic 22: Constitution of transformation centers  

1.- Classification of transformation centers

2.- Basic components of a transformation center

3.- Interior layout of transformation centers  

Topic 23: Additional facilities of the processing center  

1.- Ventilation of transformation centers

2.- Lighting and signaling

3.- Fire protection  

Block 8: Substations  

Topic 24: Characteristics of electrical substations  

1.- Introduction

2.- Security and regulations

3.- Main elements

4.- Configurations

5.- Exploitation

6.- Local control, remote control and telecontrol

7.- Hierarchical levels of command

8.- Interlocking

9.- General characteristics of the power unit

10.- Coordination of insulation

11.- General criteria for defining the configuration of a substation

12.- Example of double maneuvers with transfer bar

13.- IP Encoding

14.- IK coding

Topic 25: AIS, GIS and HIS Substations  

1.- AIS Substations  

2.- GIS Substations  

3.- HIS Substations            

Teaching unit 4: Earthing installations  

Block 7: Concepts, methods and calculation processes  

Topic 26: Concepts and definitions of earthing systems  

1.- Introduction  

2.- Resistivity of the terrain  

3.- Selection of the conductor and the joints  

4.- Ground fault currents  

5.- Stream flow through the terrain  

6.- Electrode ground resistance  

Block 8: Calculation Methods and Processes  

Topic 27: Calculation Methods  

1.- Method of Unesa  

2.- Howe Method  

3.- Maxwell Method  

4.- IEEE Std-80 Method  

5.- Determination of the unit coefficients  

6.- Determination of the earth resistance  

7.- Absolute electrode potential  

8.- Calculation of the minimum length of buried cable  

Topic 28: Calculation of earthing in supports  

1.- Generalities  

2.- Regulatory conditions  

3.- Industrial frequency dimensioning of earthing systems  

4.- Sizing with respect to the security of the people  

5.- Classification of the supports according to their location  

6.- Verification of the design of the earthing system  

7.- Difficult earthing conditions

8.- Calculation of sequence impedances for overhead lines

8.1.- Calculation of line resistance and reactance

8.2.- Calculation of direct and reverse sequence impedances

Calculation of homopolar impedance

9.- Defect current

9.1.- Calculation of equivalent sequence impedances at the point of failure

9.2.- Infinite chain impedance

9.3.- Finite chain impedance

9.4.- Defect away from a substation (infinite chain)

9.5.- Defect near a substation (finite chain)

9.6.- Reduction factor for overhead lines with earth threads

 

Topic 29: Calculation of earthing at transformation centers and substations  

1.- Maximum permissible loads in a plant  

2.- Calculation procedure  

3.- Difficult earthing conditions  

4.- Elements of earthing installations and mounting conditions  

5.- Determination of the fault currents for the calculation of the contact and contact voltages  

6.- Separation of low voltage neutral

7.- Defect currents

7.1.- Transformer Substations

7.2.- Substations

8.- Sequence impedances of the substations
9.- Sequence impedances of underground lines
9.1.- Placement of the conductors
9.2.- Equivalent resistance of earth return
9.3.- Ground return distance
9.4.- Impedance matrices
9.5.- Impedances of line sequences

Teaching unit 5: Overvoltages in high voltage installations  

Block 9: Coordination of insulation and surges in electrical networks  

Topic 30: Coordination of isolation  

1.- Introduction and objectives  

2.- Overvoltages in high voltage electrical networks  

3.- Characteristics and behavior of insulation  

4.- Surge protection  

5.- Coordination of insulation  

Topic 31: Overvoltages in high voltage installations  

1.- Introduction  

2.- Temporary overvoltages  

3.- Slow front overvoltages  

4.- Rapid front overvoltages  

5.- Very fast front-side overvoltages  

Topic 32: Shielding of power lines and substations  

1.- Introduction  

2.- Shielding of electrical lines  

3.- Total shielding angle  

4.- Shielding of electrical substations  

5. Shielding with guard cables  

6.- Shielding with Franklin tips  

7.- Special cases of shielding of substations  

8.- Comparison between Franklin tips and guard cables  

Topic 33: Surge protection. Lighting rod  

1.- Introduction  

2. Characteristics of non-explosive variable resistance lightning rods  

3.- Lightning selection criteria  

Schedule of practice  

Practice 1: Surveying  

1 .- What is a topographic profile?  

2.- Guitar  

3.- Methods for obtaining the topography of an electric line  

Practice 2: Obtaining the longitudinal profile of the power line  

1.- Determination of the initial and final points of the line  

2.- Introduction of vertices  

3.- Several traces in the same project  

Practice 3: Accidents and crossings with the power line  

1.- Electrical isolation distances to avoid discharges  

2.- Special requirements  

3 .- Crossings. Distances. Parallelisms  

4.- Accidents  

Practice 4: Determination of the conductor to be used in the line according to the transport power  

1.- Current density  

2.- Maximum current in the conductor by thermal limit  

3.- Maximum power by thermal limit  

4.- Resistance in an overhead power line  

5.- Self-induction in an overhead power line  

6.- Reactance in an overhead power line  

7.- Maximum power by voltage drop. Electric moment  

Practice 5: Plotting and editing the line  

1.- Plotting  

2.- Edition

Practice 6: Calculation of Regulatory Voltages and Laying Table  

1.- Regulatory Hypotheses  

2.- Vibratory phenomena  

3.- Laying table  

Practice 7: Calculation of supports  

1.- Hypothesis  

2.- Distances in the support  

Practice 8: Choice of supports and crosspieces  

1.- Determination of the catalog  

2.- Choice of crossbars and assemblies  

3.- Choice of supports  

Practice 9: Foundations  

1.- One block foundations  

2.- Split fractions  

Practice 10: Measurements  

1.- Excavation volume  

2.- Concrete volume  

3.- Length of the line  

4.- Length of conductor  

5.- Weight of the driver  

6.- Weight of the supports  

7.- Number of mooring and suspension chains

Practice 11: Underground link line  

1.- Determination of the lowering auxiliary elements  

2.- Calculation of the section by voltage drop  

3.- Calculation of the section by thermal limit  

4.- Calculation of the section by short circuit  

Practice 12: Choice of Transformation Center Protections  

1.- Sectional elements  

2.- Cutting elements  

3.- Fuses  

4.- Voltage transformers  

5.- Current Transformers  

Practice 13: Calculation of sections and conductors and center bars  

1.- Calculation of the section by voltage drop  

2.- Calculation of the section by thermal limit  

3.- Calculation of the section by short circuit  

4.- Calculation of the electrodynamic forces by short circuit  

Practice 14: Calculation of earthing of power line supports  

1.- Calculation of the voltages of passage, contact and passage in the access of standars  

2.- Determination of the earthing electrode  

3.- Calculation of the earth resistance and fault current  

4.- Calculation of the unit coefficients Kp, Kc, Kpacc  

5.- Comparison between regulatory and installation voltages  

6.- Corrective measures  

Practice 15: Calculation of the earthing of the transformation center  

1.- Calculation of the voltages of passage, contact and passage in the access of standars  

2.- Determination of the earthing electrode  

3.- Calculation of the earth resistance and fault current  

4.- Calculation of the unit coefficients Kp, Kc, Kpacc  

5.- Comparison between regulatory and installation voltages  

6.- Corrective measures

- Exposure classes of theory and practical examples  - Exhibition of works of students  - Practical classes

Students with special educational needs should contact the Student Attention Service (Servicio de Atención y Ayudas al Estudiante) in order to receive the appropriate academic support

• Theoretical and practical at the end of the semester that will be a value in the final grade of 60% written exam. In this test the skills cel2, CT2 and CT4 and learning outcomes 2, 3 and 4 are evaluated.
• Work experience with delivering a project of a power line and subeterránea AERES with high voltage transformer. complete with a weight on the final grade of 15%. This section cel2 skills, CT1, CT2 and CT4 and learning outcomes 2, 3 and 4 are evaluated.
• Working on a topic of the course and exhibition of the same class will have a total value on the subject of 15%. This section cel2 skills, CT1, CT2 and CT4 and learning outcomes 2, 3 and 4 are evaluated.
• Attendance at practical classes and sessions exhibition of work by 10%. This section cel2 skills, CT1, CT2 and CT4 and learning outcomes 2, 3 and 4 are evaluated.
• To get pass the course must be obtained in the written test at least 5 out of 10.

1- TEACHING METHODOLOGY AND FORMATIVE ACTIVITIES

According to the determination of the Higher Polytechnic School of Jaen for the subject of High Voltage Electrical Installations, the theoretical classes in large groups (A1) will be 100% in the classroom and time assigned. As for the classes in small group (A2 - practices), according to the guidelines of the Center will be present at 100% non-rotating in the laboratory and assigned time.

The Centre may vary the percentage of attendance depending on the number of students and the capacity of the classroom/laboratory in accordance with health measures. In case of less than 100% attendance, there will be a periodic rotation of students as determined by the Center.

Formative activities	Format (onsite)	Teaching methodology  Description
A1 - Large group theory classes	100% on site attendance	Classes to all students in the group at the assigned time and room.
A2 - Small group classes	100% on site attendance	Classes to all students in the group at the assigned time and room.
Tutoríals	On site attendance + Non-presential	Some tutoring sessions will be done face-to-face and others online (synchronous and asynchronous)

2- EVALUATION SYSTEM

 The evaluation system and weights will be the same as in the fully face-to-face scenario determined in this course guide..

 3.- RESOURCES

The web page in Platea of the subject contains the necessary material for the classes:

- Notes of the subject.

- Problems solved.

- Support material for the classes and problem solving.

- Practice reports

- Individual work proposals for the subject.

- Additional material added during the course.

Specialized free software for practices:

- Andelec: http://www.andelec.es

- Amikit: https://www.ormazabal.com/es/descargas/software/amikit-50

1- TEACHING METHODOLOGY AND FORMATIVE ACTIVITIES

Large group (A1) theory classes will be online by videoconference at the assigned time. The small group classes (A2 - practices) will be carried out online using videos about the practices complemented with directed activities for each of the practices in the assigned schedules.

Formative activities	Format (online)	Teaching methodology  Description
A1 - Large group theory classes	Online	Classes at the assigned time by video conference.
A2 - Small group classes	Online	Classes at the assigned time by video conference.
Tutoríals	Online	All tutoring sessions will be conducted online

2- EVALUATION SYSTEM

The tests will be conducted online. The weights will be modified to give more weight to the student's work and are distributed as follows:

- Attendance and participation: Participation in class. Presentation of work 15%.

- Theoretical concepts of the subject: Theoretical exam 50%, the written part will be done by videoconference with webcam and exercises of similar difficulty individualized for each student, the theoretical part will be done by individual videoconference of 15 minutes maximum.

- Execution of works, cases or exercises: Laboratory practices 35%.

 3.- RESOURCES

The web page in Platea of the subject contains the necessary material for the classes:

- Notes of the subject.

- Problems solved.

- Support material for the classes and problem solving.

- Practice reports

- Individual work proposals for the subject.

- Additional material added during the course.

Specialized free software for practices:

- Andelec: http://www.andelec.es

- Amikit: https://www.ormazabal.com/es/descargas/software/amikit-50

Institution in charge of data processing: Universidad de Jaén, Campus Las Lagunillas, s/n, 23071 Jaén

Data Protection Delegate: dpo@ujaen.es

Purpose: In accordance with the Universities Law and other national and regional regulations in force, carrying out exams and assessment tests corresponding to the courses students are registered in. In order to avoid frauds while sitting the exam, the exam will be answered using a videoconference system, being able the academic staff of the University of Jaén to compare and contrast the image of the person who is answering the exam with the student's photographic files. Likewise, in order to provide the exam with evidential content for revisions or claims, in accordance with current regulation frameworks, the exam will be recorded and stored.

Legitimacy: compliance with legal obligations (Universities Law) and other national and regional regulations currently in force.

Addressees: service providers who are the owners of the platforms where the exams are carried out and with whom the University of Jaén has signed the corresponding data access contracts.

Storage periods: those established in current in force regulations. In the specific case of exam videoconference recordings, not before the examination records and transcripts are closed or the exam can still be reviewed or challenged.

Rights: you can exercise your right of access, amendment, cancellation, opposition, suppression, limitation and portability by sending a letter to the postal or electronic address indicated above. In the event that you consider that your rights have been violated, you may submit a complaint to the Andalusian Council for Transparency and Data Protection www.ctpdandalucia.es

Person in charge: Universidad de Jaén, Paraje Las Lagunillas, s/n; Tel.953 212121; www.ujaen.es

Data protection delegate (DPO): TELEFÓNICA, S.A.U. ; Email: dpo@ujaen.es

Procedure aim: To manage proper recordings of teaching sessions with the aim of facilitating learning process under a multimodal and/or online teaching

Period for record storage: Images will be kept during legal term according to regulations in force

Legitimacy: Data will be managed according to legal regulations (Organic Law 6/2001, December 21, on Universities) and given consent provided by selecting corresponding box in legal admission documents

Data recipients (transfers or assignments): Any person allowed to get access to every teaching modality

Rights: You may exercise your rights of access, rectification, cancellation, portability, limitation of processing, deletion or, where appropriate, opposition. To exercise these rights, you must submit a written request to the Information, Registration and Electronic Administration Service of the University of Jaen at the address above, or by e-mail to the address above. You must specify which of these rights you are requesting to be satisfied and, at the same time, you must attach a photocopy of your ID card or equivalent identification document. In case you act through a representative, legal or voluntary, you must also provide a document that proves this representation and identification. Likewise, if you consider that your right to personal data protection has been violated, you may file a complaint with the Andalusian Data Protection and Transparency Council www.ctpdandalucia.es