Insulation Coordination

Insulation Coordination

We consider the different fault scenarios of your Traction Power System that could have a direct impact in the protection of your equipment. Our team will support you from the design assumptions, interfacing and conclusions to be considered in your design by means of calculation allowing you to assess the dielectric insulation performance of your system and choose the right type of surge arrestor and their proper distribution along your installation.

Over Voltage Sources

  • Frequency Over Voltage (Earth Faults)
  • Lightning Over Voltage
  • Temporary Over Voltages
  • Switching Over Voltages


  • Back Flash Over Rate
  • MTBF with and without Surge Arrestors

Standards – Regulations

  • IEC 60071 and BS EN 50124