Traditional switch intelligent interface device for digitized transformer substation

The invention discloses a traditional switch intelligent interface device for a digitized transformer substation, which can be installed on a switch yard. The intelligent interface device and the digitized transformer substation receive GOOSE-free service communication using IEC61850 of protection equipment and measurement and control equipment of an isolating layer, and complete the control of the traditional switch and the acquisition of the switch state information. The invention belongs to the field of power system control and can be used for intelligent transformation of the traditional switch of the digitized transformer substation.