MacKay Transmission Station 115kV Refurbishment Project

Location: Montreal River, North of Sault Ste. Marie, Ontario

Owner: Hydro One, Sault Ste. Marie LP

Contractor: EPTCON Ltd.

Project Summary

 

OneLine Engineering provided complete electrical engineering and design services for the replacement of eight bulk oil circuit breakers with SF6 circuit breakers in a live switchyard. The scope of work included:

• Complete detailed design of eleven new protection relay panels for the line protection, breaker failure protection and bus protection
• Design of temporary cabling as required during system change over during construction
• Production and/or updating of all related electrical drawings including single line diagrams, AC & DC schematics, trip logic diagrams, equipment layouts,   termination schedules, equipment grounding and lighting layouts
• Cable schedules for replacement of all control cabling
• Design of the ground grid extension for new line switch structures
• Construction and commissioning assistance