Electric Power Systems 1
- define basic parts of electric facilities and their purposes
- identify basic parts of electric facilities on field
- describe current-voltage conditions in balanced and unbalaced systems
- solve short circuit problem on simple power system example
- distinguish between different arc interrupting techniques
- argue about utilization of given electric product in specific location in the system
- employ softvare tool NEPLAN for power system modeling and short circuit calculations
Forms of Teaching
Week by Week Schedule
- Fundamentals of engineering, standards and IEC standards; Legislation; Permits.
- Bus bars; Power transformer; Insulators; Isolators; Capacitors; Voltage regulators; Earthing and protection system; Incoming and outgoing lines; Switchyard; Substation design and construction.
- Principles of operation of transformers; Equivalent circuit and voltage equations; Main and leakage flux; Magnetization current; Inductances; No-load and short-circuit test; Equivalent circuit parameters; Basics of construction of winding and core.
- Model of line; Model of transformer; Model of feeder; Simple load model.
- Model of generator; Model of asynchronous motor; Model of power plant.
- Equivalent circuit diagram for short-circuits; Methods of calculation; Calculation of parameters of short-circuit currents; IEC and other relevant standards; Single phase to ground fault; Double phase fault; Double phase to ground fault; Three phase fault; Three phase to ground fault.
- Thermal equivalent short-time current; Thermal strength of equipment; Determining optimal cross-section of conductors; Peak short-circuit current; Calculation of stresses in rigid conductors; Forces on supports.
- Midterm exam.
- Circuit breakers; Disconnectors; Reclosers; Busbar configurations; Insulation and protection by insulating; Transformers selection and construction; Circuit breakers and disconnectors selection and construction; Earthing and requirements regarding earthing design.
- Switches; Fuses; Load brake switches; Switching device combinations.
- Parallel connection; Connection groups; Autotransformer; Intrinsic rated power; Losses; Efficiency; Temperature rise; External characteristics; Voltage drop.
- Control systems in substations; Monitoring systems in substations; Measuring systems in substations; Communication systems in substations; Protection systems in substations; Reactive power compensation systems; Instrument transformers selection; Auxiliary systems in substations.
- Project task; Location selection and data collection; Design, layouts and documentation (CAD); Master project; Circuit diagram and connection plans; Consents and approvals.
- Expert supervision over the equipment development and facility construction; Construction, testing and commissioning; Safety; Environmental impacts; Costs and financial analysis; Timescales.
- Final exam.
Computing (study)Elective Courses (5. semester)
Electrical Engineering and Information Technology (study)Elective Courses (5. semester)
(.), Visokonaponska rasklopna postrojenja; H. Požar; Tehnička knjiga, Zagreb; 1990; ISBN: 8670591057,
(.), Transparencije s predavanja,
(.), Electric Power Substations Engineering; J.D. McDonald; CRC Press; 2003; ISBN: 0849373832, 9780849373831,
(.), Introduction to Electric Power Systems; (http://ocw.mit.edu/index.html) MIT OpenCourseWare; MIT; 2005; ISBN: -,
(.), Symmetrical Components for Power Systems Engineering; J. Lewis Blackburn; Marcel Dekker; 1993; ISBN: 0849376181, 9780849376184,
(.), Power System Analysis John Grainger, Jr., William Stevenson McGraw-Hill 1994,
L3 English Level
8 Laboratory exercises
0 Project laboratory