In the DC feeding system, the AC power with voltage step-downed by rectifier transformer is converted to the DC power for traction power by the rectifier.
We make optimal design to fit with special overload ratings like Classes D, E, and S for train load and attempt to realize the compact and lightweight design.
Primary and secondary connections support the bus duct system according to layout of substations.
There is no risk of electrical shock because the pure water heat pipe natural cooling system heat pipe is insulated.

• [Pure-water heat-pipe self-cooled type]
  (1) Environmentally-conscious design by using pure water for coolant
  (2) There is no risk of electrical shock because the heat pipe is insulated
  (3) Enhancement of convection and reduction of foot-print space by adopting the vertical heat pipe
• [Air self-cooled type]
  (1) Effective cooling mechanism with heat sink on which thermoelectric cooling elements closely attached
  (2) Realizing the compact design by simplified structure
  (3) Easy maintenance and inspection