Traction Power Supply System

Traction Power Supply System

TECHNICAL CHARACTERISTICS:

A. MEDIUM VOLTAGE (MV) POWER
SourcePublic Power Corporation (PPC)
Power Supply Voltage20 kV, 3Φ, 50Hz
Power Supply Points30
Power Distribution70 mm2, copper cable
Β. DIRECT CURRENT (DC) RECTIFIER SUBSTATIONS
Rectifier types12-pulse rectifiers with silicon diodes
Number of substations10 (Line2)
10 (Line 3)
2 (Depot)
22 in Total
Average spacing1100m (Line 2)
1200m (Line 3)
Power3 MW
Overloading capacity150%, 2 h
300%, 1 min
Output voltage (nominal)750 VDC
C. DC POWER DISTRIBUTION
Third Rail60 Kg/m, low carbon content steel
17.3 Kg/m, Composite (Aluminum / Stainless Steel)
Nominal voltage750 VDC
Minimum voltage525 VDC
Maximum voltage900 VDC
D. OTHER CHARACTERISTICS
Capacity design6-car Trains, 100s Headway
SectionalizationThe entire third rail of the Main Lines:
•   Line 2 – 18 sections
•   Line 3 – 14 sections
Monitoring & ControlRemote Control (Syntagma)
Local Control
Emergency plungers every 200m
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