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DC Traction Power Supply
System Design
DC Substation
Accomodation
Main Components
Diode Rectifier
Thyristor Controlled Rectifier
Thyristor Controlled Inverter
Thyristor Controlled Double Converter
DC Switchgear
Station Control System
Combined Protective Unit and Controller
Energy Storage System
Short-circuiting Device
Stray-current Monitoring System
DC Substation - General
Reliable technology
The DC substations must transform, rectify and feed the current from the medium-voltage 3-phase network into the contact line sections. They must comply with the characteristic requirements of mass transit systems:
  • Short distances between stations
  • High starting power
  • High train density
  • Limited total length of all routes
  • Meshed networks