Schaffner Distribution transformers

Distribution transformers

Installed in traction power substations in over 50 cities worldwide

Schaffner is the leading supplier of dry-type transformer products for distribution and trackside power applications. Strong technical expertise and vast application experience allow us to design the best solutions for these demanding applications.

Our products are installed in traction power substations in over 50 cities worldwide and include traction power transformers (TPT), interphase transformers (IPT), auxiliary power transformers (APT), and DC negative return reactors. In addition to that, Schaffner medium voltage (MV) grid step-up transformers support photovoltaic (PV), wind energy, hydro, bio-fuel and energy storage applications worldwide.


  • Phases: 1 and 3
  • Power range: up to 10 MVA
  • Voltage range: up to 36 kV
  • Lightning impulse: up to 300 kV
  • Fundamental frequency: 16 Hz up to 30 kHz
  • Coil technology: VPI, Magne-seal
  • Insulation classes: 180 / 200 / 220
  • Protection class: up to IP67 and NEMA 6/6P
  • Cooling methods: AN, AF, WD