Course detail

Substations and Lines

FEKT-NESVAcad. year: 2011/2012

Description of basic parts of electric power stations and their equipment. Construction and properties of distribution equipment (especially high and ultra high voltage. Recent cable and overhead line technology. Theory of heat and mechanical stress of conductors due to operating load and short-circuit currents. Theory of mechanical stress of a suspended conductor at given climatic conditions.

Language of instruction

English

Number of ECTS credits

6

Mode of study

Not applicable.

Guarantor

doc. Ing. Jaroslava Orságová, Ph.D.

Department

Department of Electrical Power Engineering (UEEN)

Learning outcomes of the course unit

Knowledge of power station equipment, construction and designing with a focus on high and ultra high voltage levels. Knowledge of the designing of conductors of overhead and cable lines.

Prerequisites

The subject knowledge on the Bachelor´s degree level is requested.

Co-requisites

Not applicable.

Planned learning activities and teaching methods

Teaching methods depend on the type of course unit as specified in the article 7 of BUT Rules for Studies and Examinations.

Assesment methods and criteria linked to learning outcomes

Projects, written and oral parts of exam

Course curriculum

Transmission and distribution system - voltage labels, organization, connection of transformer nodal points, interconnection of power systems
Electric power station - types, basic terms a classification, function relation between detail parts
HV, MV and LV substations - out-door and gas insulated, their versions and operating characters
substations and switchboards - classic, cubicle, gas insulated, their versions and operating characters
Common substation equipment - stand-by power supply, centralized ripple control, earthing systém, control system
Substation protection - busbar protection, feeder protection, protection terminal, overvoltage protection theory in power installation, insulation coordination
Overhead line - mechanic of hanging wires

Work placements

Not applicable.

Aims

Make students familiar with a recent state of electrical station equipment with a focus on high and ultra high voltage levels. The subject informs students about technical properties of electrical lines - both cable and overhead - and provides a comprehensive set of information concerning the theoretical principles of distribution equipment and lines designing.

Specification of controlled education, way of implementation and compensation for absences

The content and forms of instruction in the evaluated course are specified by a regulation issued by the lecturer responsible for the course and updated for every academic year.

Recommended optional programme components

Not applicable.

Prerequisites and corequisites

Not applicable.

Basic literature

Not applicable.

Recommended reading

Not applicable.

Classification of course in study plans

  • Programme EECC-MN Master's

    branch MN-EEN , 1 year of study, summer semester, compulsory

Type of course unit

 

Lecture

26 hod., optionally

Teacher / Lecturer

doc. Ing. Jaroslava Orságová, Ph.D.

Syllabus

1. Electric power station - types, basic terms a classification, function relation between detail parts.
2. AC switchgears - scheme, busbar system, branch equipment, operatin handling and blocking of switchgear apparatus.
3. Principles of designing of transformer station - installed capacity specification, choice of parameters and arrangement of switchgears.
4. Transformers - parameters, operation modes, design criteria for transformer cells.
5. Transformers - transformer protection.
6. Substation earthing - fundamentals, definitions and specification
7. Substation earthing - method for measuring of earthing resistance, earthing voltage and touch voltage.
8. Influence of short circuit current on switchgears - theory of thermal and mechanical short circuit strength.
9. Substation protection - busbar protection, feeder protection, protection terminal in switchgear control system.
10. Power station operation control - substation automation system, its providing and abilities.
11. Ripple control - purpose, principle, commanding code, ripple control signal propagation in power system.
12. Overhead line - mechanic of asymmetrically hanging wires.
13. Electromagnetic field in the vicinity of substations and lines.

Fundamentals seminar

18 hod., compulsory

Teacher / Lecturer

doc. Ing. Jaroslava Orságová, Ph.D.

Syllabus

1. Transformers - installed capacity of transformer station, operation in parallel.
2. Transformer station disposition and calculate of cooling in transformer chamber.
3. Dimensioning of transformer station devices - branch equipment, uninterruptible supply.
4. Calculation and check protective earthing system.
5. Waveforms of mechanical effects of short-circuit currents.
6. Calculation of overhead line - various solution of state equation.

Exercise in computer lab

9 hod., compulsory

Teacher / Lecturer

doc. Ing. Jaroslava Orságová, Ph.D.

Syllabus

1. Program for setting and configuration of feeder terminal.
2. Project of distribution transformer station MV/LV
3. Calculation of installation table for overhead line.

Laboratory exercise

12 hod., compulsory

Teacher / Lecturer

doc. Ing. Jaroslava Orságová, Ph.D.

Syllabus

1. Feeder terminal - control function and apparatus blocking.
2. Feeder terminal - cable overloading protections.
3. Differential protection of transformer -measuring of operating characteristic.
4. Transformers with different ratio and impedance in parallel.