FEKT-MPA-RZBAcad. year: 2020/2021
The first part of course is dedicated to switchgears in electrical substations focusing on their schemes, design and properties, but also on branches equipment and service operations. Practical experience students gain by working on projects, in which they solve examples of switchgear busbar dimensioning or checking of overhead line conductors. The power system protections are discussed in the second part of the course. Working in laboratories where students get familiar with the selected electric protection is a practical experience. In the end the course also deals with an introduction to the high voltage technology, which is related to dielectric strength of distribution equipment.
Learning outcomes of the course unit
Graduates of this course should be able
- characterize basic types of transmission and distribution networks,
- explain the differences in the arrangement of busbar systems of switchgears,
- list the basic conditions for blocking the apparatus in switchgear branches
- apply the basic aspects of power lines dimensioning,
- explain the principles of the basic types of electrical protection,
- explain the effect of current transformers to the electrical protections.
For this course they are primarily required knowledge of these subjects
- Electrical power distribution - parameters of the basic elements of the power system, losses in the line, characteristic values of short-circuit currents,
- Technical Mechanics - mechanics of non-rigid bodies,
- Mathematics of 1st and 2nd year of bachelor study.
Recommended optional programme components
Recommended or required reading
McDonald, J. D. Electric Power Substations Engineering. 3rd Edition. CRC Press May 16, 2012. ISBN 9781439856383. (EN)
Noháčová, L., Mertlová, J. Electrical Substation and Lines. 1st Edition. BEN – technická literatura, Praha 2010. ISBN 978-80-730-265-7. (EN)
Blackburn, J. L., Domin, T. J. Protective Relaying: Principles and Applications. 4th Edition. CRC Press 2014. ISBN 978-1439888117. (EN)
Planned learning activities and teaching methods
Techning methods include lectures, computer laboratories and practical laboratories. Course is taking advantage of e-learning (Moodle) system. Students have to write a two projects/assignments during the course.
Assesment methods and criteria linked to learning outcomes
The final evaluation of this subject consists of:
- assessment of the final credit test (30%),
- evaluation of laboratory protocols (20%)
- assessment of the final oral exam (50%)
The student needs at least half of the maximum number of points in each activity evaluated to successfully pass the subject.
Language of instruction
1. Introduction - substations as part of power system, nominal voltages, operation mode of distribution networks, basic electrical schemes and parameters of switchgears.
2. Switchgears bays facilities - features and applications. Operation manipulation in substation.
3. Technology version of HV and MV substation - outdoor and indoor substation, gas-insulated, hybrid.
4. Cables and overhead lines - materials, construction, classification codes
5. Cables and overhead lines accessories.
6. Conductors designing in respect to maximum operating temperature of cable core.
7. Conductors designing in respect to short circuits effects.
8. Mechanical design of overhead lines.
9. Electrical protection theory - Fundamentals terms and classifications.
10. Types of electrical protection for electrical devices in distribution system.
11. Overvoltage in distribution system and protections against overvoltage.
12. Electrical strength of switchgears and lines, insulation coordination.
The aim of the course is to give students basic information about equipment for electrical energy distribution and learn them basic techniques and principles for the design of power lines. Furthermore, students should get familiar with the principles of electrical protection for the protection of power systems devices.
Specification of controlled education, way of implementation and compensation for absences
Labs are compulsory; correctly excused absence can be replaced by arrangment with the teacher.
Classification of course in study plans
- Programme MPA-EAK Master's, 1. year of study, winter semester, 7 credits, compulsory-optional