Engineering Application of Digital Substation

Abstract

This paper introduces digital substation engineering applications typically schemes of CBZ-8000B in different stages of the program, in which the analog input uses the mode from the IEC61850-9-1 point-to-point to the IEC61850-9-2 network transmission, 10kV analog inputs use the IEC60044-8 small analog mode, and it realizes the transmission of tripping and closing commands and network protection by transporting GOOSE information of process layer. Meanwhile, superior points of different projects are compared and the greater innovation and application on network protection and quadratic functions which will be achieved in following engineering application are forecasted.