Research Of Digital Substation Design

As the technology of Online testing of electrical equipment, substation operation, operator training simulation mature, the network communication technology and automation technology are rapidly development, unconventional transformer, intelligent electronic devices in the substation system gradually promote the use of the construction of digital substation is a general trend. It is an irresistible trend to build digital substation since the requirements are basically met with the development of network communication technology and automation technology. This paper proposed an110kV digital substation design scheme according to the110kV Dahetun substation design task of Henan province Nanyang power company. An electronic transformer engineering application scheme with good ratio of performance and price, reasonable choices of type and list are introduced according to the Dahetun110kV substation bus arrangement. The secondary system was fully integrated according to the scale of construction of Dahetun110kV substation. The economic benefit of the application of electronic transformer and the integration of secondary system was analyzed. In the respect of monitoring information transmission network in the substation, Dahetun substation data transmission network was designed according to the business requirement of substation automation system. Finally safety protection measures for the Dahetun110kV substation Data transmission network and remote communication programme were put forward.