Course detail
Distribution Equipment
FEKT-BRZBAcad. year: 2018/2019
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.
Language of instruction
Number of ECTS credits
Mode of study
Guarantor
Learning outcomes of the course unit
- 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.
Prerequisites
- 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.
Co-requisites
Planned learning activities and teaching methods
Assesment methods and criteria linked to learning outcomes
- 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.
Course curriculum
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.
Work placements
Aims
Specification of controlled education, way of implementation and compensation for absences
Recommended optional programme components
Prerequisites and corequisites
Basic literature
Recommended reading
Classification of course in study plans
Type of course unit
Lecture
Teacher / Lecturer
Syllabus
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. State equation - solution methods of state equation.
10. Electrical protection theory - Fundamentals terms and classifications.
11. Types of electrical protection for electrical devices in distribution system.
12. Overvoltage in distribution system and protections against overvoltage.
13. Electrical strength of switchgears and lines, insulation coordination.
Fundamentals seminar
Teacher / Lecturer
Syllabus
2. Installed transformer station.
3. Dimensioning of power cables and insulatin conductors
4. Dimensioning of flat conductors for busbars. Dimensioning of steel reinforced conductors with respect to mechanical pension.
5. Conductors protection in electric power distribution - overloading and short-circuit protection, assigning of protective elements.
Exercise in computer lab
Teacher / Lecturer
Syllabus
2. Calculation of assembly table for overhead line.
3. Computation program for design of electrical line protection.
Laboratory exercise
Teacher / Lecturer
Syllabus
2. Measuring of distance protection characteristic.
3. Measuring of comparative protection.
4. The testing sources in high voltage laboratory.
5. Excursion in HV and MV substation.