Academy of Technical and
Art Applied Studies Belgrade

Railway Power Supply Systems Course code: 117083 | 5 ECTS credits

Basic information
Level of Studies: Undergraduate applied studies
Year of Study: 2
Semester: 4
Requirements:
Goal: To learn and understand the fundamentals of electrical components in relway electrotraction systems DC 600 V, 1500 V and 3000 V, AC 15 kV 16 2/3 Hz and 25 kV 50 Hz.
Outcome: Students will be able to: define the basic physical laws and principles required to model the traction system; explain the method of calculation of traction and braking of trains; describe existing traction power systems; describe the main components of the electrical traction system; perform the power supply calculation of stable traction power substations and analyze the environmental impact of stable electric traction substation.
Contents of the course
Theoretical instruction:
  1. DC 600 V, 1500 V and 3000 V, AC 15 kV 16 2/3 Hz, 25 kV and 2x25 kV 50 Hz.
  2. Economic and technical criterions and conditions for railway electrification.
  3. Main components of electrical traction systems: traction power substations, railway network section switchgear.
  4. Feeder substation, mid-point track sectioning cabin, intermediate track sectioning cabin
  5. Construction and types of the contact line systems: non-compensated, semi-compensated and compensated.
  6. Determination of the electrical parameters of the railway traction lines.
  7. Overhead contaclines: faults and abnormal operating conditions, overcurrent protection.
  8. Overheadcontac lines protection: directional, distance, differential and earth faults protection.
  9. Overhead contaclines and protection: Automatic reclosure and overload protection.
  10. Transformer protection: differential, Bucholz, earth fault, overcurrent, and overheating protection.
  11. Regime of traction vehicle drives, tractive effort, Calculations of the electrical conditions in the contact line system: voltages, powers and energy demanded for the traction.
  12. Power and energy demand, Connections of the stable traction power substations in the three phase power system.
  13. Allowed unsymmetry of voltages and currents, Radial and parallel operation of traction substations.
  14. Electric and magnetic fields under contact lines and in proximity of the traction power installations.
Practical instruction (Problem solving sessions/Lab work/Practical training):
  1. 1. Gavrilović, B., „Stabilna postrojenja električne vuče“, Visoka železnička škola strukovnih studija, autorizovana predavanja, Beograd, 2015. 2. Gavrilović, B., „Sistemi daljinskog upravljanja stabilnim postrojenjim aelektrične vuče“, Visoka železnička škola strukovnih studija, Beograd, 2013. 3. Marković, Đ., „Stabilna postrojenja električne vuče”, skripta, VŽŠ, Beograd, 2003. 4. Marković, Đ., „Elektroenergetska postrojenja“, skripta, VŽŠ, Beograd, 2003. 5. Matić, S. V., „Kontaktna mreža”, ŽELNID, Beograd, 1982.
Textbooks and References
Number of active classes (weekly)
Lectures: 2
Practical classes: 2
Other types of classes: 0
Grading (maximum number of points: 100)
Pre-exam obligations
Points
activities during lectures
0
activities on practial excersises
0
seminary work
0
colloquium
0
Final exam
Points
Written exam
0
Oral exam
0