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Course info
KEE / PDS
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Course description
Department/Unit / Abbreviation
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KEE
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PDS
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Academic Year
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2024/2025
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Academic Year
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2024/2025
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Title
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Transmission and distribution grids
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Form of course completion
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Exam
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Form of course completion
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Exam
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Accredited / Credits
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Yes,
5
Cred.
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Type of completion
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Combined
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Type of completion
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Combined
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Time requirements
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Lecture
3
[Hours/Week]
Tutorial
2
[Hours/Week]
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Course credit prior to examination
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Yes
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Course credit prior to examination
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Yes
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Automatic acceptance of credit before examination
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Yes in the case of a previous evaluation 4 nebo nic.
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Included in study average
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YES
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Language of instruction
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Czech, English
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Occ/max
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Automatic acceptance of credit before examination
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Yes in the case of a previous evaluation 4 nebo nic.
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Summer semester
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16 / -
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0 / -
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0 / -
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Included in study average
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YES
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Winter semester
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18 / -
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0 / -
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0 / -
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Repeated registration
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NO
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Repeated registration
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NO
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Timetable
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Yes
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Semester taught
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Winter + Summer
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Semester taught
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Winter + Summer
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Minimum (B + C) students
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10
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Optional course |
Yes
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Optional course
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Yes
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Language of instruction
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Czech, English
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Internship duration
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0
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No. of hours of on-premise lessons |
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Evaluation scale |
1|2|3|4 |
Periodicity |
každý rok
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Evaluation scale for credit before examination |
S|N |
Periodicita upřesnění |
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Fundamental theoretical course |
Yes
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Fundamental course |
No
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Fundamental theoretical course |
Yes
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Evaluation scale |
1|2|3|4 |
Evaluation scale for credit before examination |
S|N |
Substituted course
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None
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Preclusive courses
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N/A
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Prerequisite courses
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N/A
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Informally recommended courses
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N/A
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Courses depending on this Course
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KEE/SNAPE, KEV/SNVSE
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Histogram of students' grades over the years:
Graphic PNG
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XLS
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Course objectives:
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The course deals transmission and distribution electrical grids, including industrial electric grids. The objective is to familiarize students with concept and operation of the grids, trends and topical problems. The students also familiarize with procedures of supply power system design; on the basis of the above knowledge and skills the students will be able to design basic concept of industrial supply system. The course also deals with quality of power supply, from point of view of industrial end-user, as well as distribution system operator, problems associated with operation of special industrial loads (effects on supply network and mitigation techniques), and assessment of network disturbances caused by distributing equipment and generation facilities.
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Requirements on student
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Credit:
To elaborate and to present semestral work.
To pass written test - a time-consuming example (calculation of calculated load, compensation output, voltage drop on cables or transformers, fault currents, cable and transformer energy losses; transformer and cable rating) (at least 65% of full score)
Exam:
- Written part: about 10 questions from theoretical part (at least 65% of full score).
- Oral part: questions associated with written part of exam
Final classification: summary of exam, test and project classifications.
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Content
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Lectures:
1. Concept of electrical power system, its parts and relation between them, power system control, electrical networks - types, performance characteristics, neutral earthing arrangement and application, construction and performance characteristics of network elements
2. Transmission system - performance characteristics, cooperation with adjacent power systems, trends and topical problems
3. Distribution system - performance characteristics according to voltage level, cooperation with transmission system, trends and topical problems
4. Industrial electrical grids - specifics, connection of industrial plants to distribution system, basic concept of industrial supply systems, requirements on supply availability, back-up supply, examples of industrial grid topology
5. Fault conditions in power system - concept of power system protection, short-circuit conditions, reduction of short-circuits and their effects, rating of equipment with respect of short-circuit effects
6. Fault conditions in power system - earth faults - detailed analysis of currents and voltages, fault identification and location
7. Power quality - definition, standard EN 50 160, voltage characteristics, causes of voltage waveform disturbances, impact of lower voltage quality on industrial equipment, voltage-tolerance curves
8. Interruptions - causes, indices of continuity of supply SAIDI, SAIFI, MAIFI, incentive-based quality regulation, improvement of indices
9. Voltage quality - voltage variations, causes, effects, evaluation, voltage regulation in distribution system, impact of decentralized generation on voltage profile
10. Voltage quality - voltage dips, fluctuations, unbalance - causes, effects, evaluation, mitigation
11. Voltage quality - harmonics - causes, effects, evaluation, mitigation, impact of harmonics on compensation capacitors
12. Power factor correction in industrial networks - types of PFC equipment, selection of appropriate of PFC equipment, incentive invoicing of reactive energy
13. Connection of equipment (electricity generation and accumulation facilities, disturbing installations) in distribution system - connectivity requests, network disturbances (voltage quality, power flows in distribution networks)
Tutorials:
General procedure of supply network design
Maximum demand of industrial plant or its parts
Power factor correction (PFC) - PFC equipment and their location, calculation of PFC equipment output
Short-circuit currents in industrial networks - calculation of 3-phase short-circuit current, contribution of motors to short-circuit current
Rating of supply system components (cable and transformer sizing)
Assessment of network disturbances caused by special industrial equipment and generation facilities - procedure, selection of mitigation techniques
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Activities
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Fields of study
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Studentum je k dispozici kurz v Google Classroom a Moodle se všemi podstatnými informacemi a materiály, dále pak studijní materiály na Coursewaru.
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Guarantors and lecturers
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Literature
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Basic:
Korenc, Vladimír; Holoubek, Jiří. Kompenzace jalového výkonu v praxi. 1. vyd. Brno : IN-EL, 1999. ISBN 80-86230-07-4.
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Basic:
Tesařová, Miloslava; Štroblová, Milada. Průmyslová elektroenergetika. Plzeň : Západočeská univerzita, 2000. ISBN 80-7082-703-3.
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Basic:
Orságová, Jaroslava. Rozvodná zařízení. VUT Brno, 2007.
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Basic:
Tůma, Jiří,; Martínek, Zbyněk,; Tesařová, Miloslava,; Chemišinec, Igor. Security, quality and reliability of electrical energy. Praha : Conte, 2007. ISBN 978-80-239-9056-0.
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Extending:
Kříž, Michal. Dimenzování a jištění elektrických zařízení - tabulky a příklady. Čtvrté - aktualizované vydání. 2015. ISBN 978-80-87942-07-9.
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Extending:
Dugan, Roger C. Electrical power systems quality. 3rd ed. New York : McGraw-Hill, 2012. ISBN 978-0-07-176155-0.
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Extending:
Lakervi, Erkki; Holmes, E. J. Electricity distribution network design. 2nd ed. Stevenage : Peter Peregrinus Ltd., on behalf of The Institution of Electrical Engineers, 2003. ISBN 0-86341-309-9.
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Extending:
Hudeczek, Mečislav; Santorius, Pavel; Pantůček, Edmund; Cichoň, Břetislav; Satinský, Alexej. Chránění I : elektrická zařízení do 1000 V. Havířov : IRIS, 2004. ISBN 80-903540-1-7.
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Extending:
Bollen, Math H. J.; Hassan, Fainan. Integration of distributed generation in the power system. Hoboken : John Wiley & Sons, 2011. ISBN 978-1-118-02901-5.
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Extending:
Fencl. Průmyslový elektrický rozvod. ČVUT Praha, 1989.
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Recommended:
ČSN EN 50160 - Charakteristiky napětí el. energie dodávané z veřejné distribuční sítě. 2000.
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Recommended:
ČSN EN 60909-0 Zkratové proudy v trojfázových střídavých soustavách - Část 0: Výpočet proudů. 2002.
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Recommended:
ČSN 33 2000-5-523 - Elektrická zařízení, výběr a stavba elektrických zařízení, dovolené proudy. 1994.
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Recommended:
ČSN 34 1610 - Elektrický silnoproudý rozvod v průmyslových provozovnách. 1963.
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Recommended:
Pavlovský, Bohumír. Elektrické sítě v městech a sídlištích. Vyd. 1. Praha : SNTL, 1975.
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Recommended:
Mertlová, Jiřina; Noháčová, Lucie. Elektrické stanice a vedení. 1. vyd. V Plzni : Západočeská univerzita, 2008.
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Recommended:
Schejbal, Konstantin; Mertlová, Jiřina. Elektroenergetika II. 1.část. 1. vyd. Plzeň : ZČU, 1998. ISBN 80-7082-451-4(1.
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Recommended:
Schejbal, Konstantin; Mertlová, Jiřina. Elektroenergetika II. 2. část. 1. vyd. Plzeň : ZČU, 1998. ISBN 80-7082-451-4(2.
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Recommended:
SIEMENS. Planning of Electric Power Distribution - Technical Principles. 2018.
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Recommended:
PNE 33 3430-0 - Výpočetní hodnocení zpětných vlivů odběratelů distribučních soustav.
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Recommended:
SIEMENS. Power Engineering Guide (PEG). Edition 8.0. Publicis Pixelpark, Erlangen, Germany, 2016.
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On-line library catalogues
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Time requirements
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All forms of study
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Activities
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Time requirements for activity [h]
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Preparation for formative assessments (2-20)
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5
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Preparation for an examination (30-60)
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35
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Team project (50/number of students)
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25
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Total
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65
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Combined form of study
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Activities
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Time requirements for activity [h]
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E-learning [dáno e-learningovým kurzem]
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45
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Contact hours
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20
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Total
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65
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Full-time form of study
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Activities
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Time requirements for activity [h]
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Contact hours
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65
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Total
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65
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Prerequisites
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Knowledge - students are expected to possess the following knowledge before the course commences to finish it successfully: |
to describe concept of electrical power system, its parts and relation between them |
to describe operation of power system with regard to neutral earthing |
to compare reliability and other performance characteristics of overhead lines and underground cables, and electric network arrangements |
to define parameters of network elements, to draw up their equivalent circuits |
to draw up time behavior of a short-circuit current with maximum DC part, to analyze parts of a short-circuit current, to define short-circuit currents (initial symmetrical, peak, thermal) |
to explain principles of fundamental protection devices |
to distinguish the type of a switch according its switching capability and describe its application |
to explain principle of power factor correction (PFC) and its benefits |
to define quantities in power systems under non-sinusoidal conditions, to describes effects of harmonics |
to explain origin of resonances in power systems and their applications, e.g. in passive single-tuned filters |
Skills - students are expected to possess the following skills before the course commences to finish it successfully: |
to identify the way of neutral earthing on the basis of voltage and current conditions during a line-to-ground fault |
to calculate conductor resistance, currents and complex power in AC circuits, power factor, efficiency, energy |
to calculate power, current and voltage conditions in simple networks (one-side fed radial networks) in steady state |
to calculate initial short-circuit current and power during 3-phase short-circuit fault |
to size cross-section of a conductor and to make initial proposal of transformer installed capacity |
Competences - students are expected to possess the following competences before the course commences to finish it successfully: |
N/A |
N/A |
N/A |
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Learning outcomes
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Knowledge - knowledge resulting from the course: |
to describe concept of electrical power system and hierarchy of power system control, performance characteristics of transmission and distribution systems, trends and topical problems |
to specify and compare reliability and other performance characteristics of network elements, to compare supply reliability and other performance characteristics of of EHV, HV, MV and LV networks, to give reasons for different way of system earthing and to compare dis-/advantages of system earthing arrangements |
to explain aspects determining basis concept of industrial supply systems, to give specifics of industrial electrical grids |
to explain concept of power system protection and principles of fault identification and location, give reasons for currents and voltage conditions during short-circuit and earth |
to estimate impact of network elements on short-circuit current and its effects and to consider possibilities of their reduction |
to define term Power Quality and voltage characteristics, to present causes of power quality disturbances |
to describe impact of voltage quality on industrial equipment respectively impact disturbing equipment on supply voltage, to give examples of sensitive and disturbing equipments |
to distinguish voltage characteristics, to describe causes of their disturbances, negative impacts on supply network and equipment, to assess application of various mitigation techniques |
to explain principle of voltage regulation by means of transformers with tap changer, impact of decentralized generation on voltage profile and means for its reduction |
to define requests for connection of equipment to distribution networks, to explain the impact of local sources on voltage quality and power flows across networks |
Skills - skills resulting from the course: |
to design basic concept of supply system with respect to requirements on power supply systems (power supply availability) |
to calculate maximum demand of industrial plant or its parts |
to calculate output of back-up source |
to select number and output of transformers in substations and to draft operating mode of the transformers with respect to operational energy losses |
to design power-factor correction/compensation, to select appropriate compensation equipment and its location, to calculate its output |
to calculate 3-phase short-circuit currents in industrial networks |
to rate main feeders/cables |
to assess network disturbances caused by special industrial equipment and generation facilities, to select appropriate of mitigation technique |
Competences - competences resulting from the course: |
N/A |
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Assessment methods
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Knowledge - knowledge achieved by taking this course are verified by the following means: |
Combined exam |
Skills - skills achieved by taking this course are verified by the following means: |
Test |
Project |
Competences - competence achieved by taking this course are verified by the following means: |
Combined exam |
Project |
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Teaching methods
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Knowledge - the following training methods are used to achieve the required knowledge: |
Lecture |
E-learning |
Skills - the following training methods are used to achieve the required skills: |
Practicum |
Individual study |
Competences - the following training methods are used to achieve the required competences: |
Individual study |
Lecture |
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