General Characteristics

ELETRAFO is a compact solution that allows the measurement of the voltage of the catenary line and distributes the information through the whole train. Having just one certified product that integrates so many functions, allows easy communication and interchange of data, with maximum control of the whole process.


ELETRAFO's functions are highly customizable according to customer needs as well as suggestions derived from our experience.

  • Detection and measurement of the instantaneous catenary AC and DC voltages
  • Analog and/or digital output signals
  • Insulated optical fiber output
  • On-line diagnostics

Environmental Performance

The device is compliant with all regulations of the rail market. All components are homologated for the industrial temperature range (from -40°C to +85°C - Class TX - EN 50125-1) and ensure proper function in the worst environmental conditions. The precision is 1% on everage, 0.3% on the whole TX range and 0.5% at 23°C.

Electrical Performances

ELETRAFO operates under the following power supply systems

(EN 50163 - Railway Systems Supply Voltages).