The static converters are three types, depending on locomotive:
- for classic locomotives DEL 2100 HP,
- for DEL 2100 HP locomotives updated by
   Electroputere together with GM-EMD
- for GM G16 locomotives

No matter of the locomotives type, the converters feed the line train with alternative voltage of 1500 V/50 Hz, taking the power from either a separately DC traction generator, for DEL 2100 EGM, either from the main generator, for classic 2100 HP diesel-electric locomotive and GM G16 locomotive.

The converters are designed to operate with and without insulation transformer from the locomotive chassis.