Single-phase sulphur hexafluoride (SF6) test transformer TIOG-350 is designed for testing high-voltage electrical equipment (current and voltage transformers, power transformers, circuit breakers, bushings, etc.) with the short-term AC voltage at 50 Hz frequency, including testing with isolation capacitance (Cx), dissipation factor (tg δ) and partial discharge (PD) measurements.

Transformer TIOG-350 is designed for use as part of cable test vans, so its' structure is resistant to vibrations and varying climatic factors. The transformer is virtually maintenance free.