Traction Power Supply System
TECHNICAL CHARACTERISTICS: | |
| A. MEDIUM VOLTAGE (MV) POWER | |
| Source | Public Power Corporation (PPC) |
| Power Supply Voltage | 20 kV, 3Φ, 50Hz |
| Power Supply Points | 30 |
| Power Distribution | 70 mm2, copper cable |
| Β. DIRECT CURRENT (DC) RECTIFIER SUBSTATIONS | |
| Rectifier types | 12-pulse rectifiers with silicon diodes |
| Number of substations | 10 (Line2) 10 (Line 3) 2 (Depot) 22 in Total |
| Average spacing | 1100m (Line 2) 1200m (Line 3) |
| Power | 3 MW |
| Overloading capacity | 150%, 2 h 300%, 1 min |
| Output voltage (nominal) | 750 VDC |
| C. DC POWER DISTRIBUTION | |
| Third Rail | 60 Kg/m, low carbon content steel 17.3 Kg/m, Composite (Aluminum / Stainless Steel) |
| Nominal voltage | 750 VDC |
| Minimum voltage | 525 VDC |
| Maximum voltage | 900 VDC |
| D. OTHER CHARACTERISTICS | |
| Capacity design | 6-car Trains, 100s Headway |
| Sectionalization | The entire third rail of the Main Lines: • Line 2 – 18 sections • Line 3 – 14 sections |
| Monitoring & Control | Remote Control (Syntagma) Local Control Emergency plungers every 200m |
