Digital Subtation

Digital substations represent an inevitable trend in the digital transformation and development of the power sector globally—and in Vietnam in particular.

A digital substation is a type of substation that employs optoelectronic technology to convert measurement, control, status, and alarm signals primary equipment located outdoors (at the intermediate cabinet or device level) digital signals. These signals are transmitted via converter units and fiber optic systems to relay/BCU devices installed in protection and control panels within the central control room.

The transmission and reception of data outdoor devices to the control center are fully digitized using the IEC 61850-9-2 Process Bus technology.