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Station 122 (GRTA) 345kV Substation

Realtime provided engineering services for the addition (2) new 345kV bays and (3) new 345-115kV transformers to accommodate a capacity increase at the substation.

Design for installation of new 4th and 5th 345kV bays; installation of new transformers 4T, 5T, and 6T; new relay design integrated with existing annunciation, SCADA, and engineering access systems; new protection and control system, including IEC 61850 protocol and GOOSE messaging for relay-to-relay communications; 345kV control building expansion; 345kV connections from transformers to 345kV bays; 115kV underground connections from new GIS switchgear to the existing line terminal structures; 115kV revenue metering; termination structure foundations; demolition of the existing 115kV switchyard and control building; and 115kV transmission line terminal structure relocation and retrofit.

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