Teck Resources Ltd. operates one of the largest fully integrated lead/zinc smelters in the world in Trail, British Columbia. For nearly 60 years, the power required to run the smelting operation was supplied from the Edgewood dam. Due to its age, upgrades were required to resolve a number of reliability and safety issues.
Teshmont was retained as a subconsultant by Wood Group PLC (formerly Amec Foster Wheeler) to carry out a feasibility study and prepare cost estimates for several options for upgrading or replacing the 63/230 kV Waneta substation. The study considered replacement of the existing 63 kV switchgear and protection at Waneta with gas-insulated switchgear (GIS) technology, and replacement of the 63/230 kV autotransformers for line 71L and associated protection systems. After careful consideration, Teshmont’s recommendation was to replace the existing substation with a new 63 kV GIS substation located adjacent to the existing powerhouse.
Over the course of the project Teshmont prepared the initial conceptual designs and budgetary cost estimates, detailed primary and secondary equipment specifications, defined interfaces between the 63 kV and 230 kV substations and the hydro generating plant including station service power, communications, SCADA control at the generating plant and with the System Control Centre, designed the substation automation system for all 63/230 kV equipment, and provided on-site commissioning management and support.
At the project’s conclusion, the refurbishment and replacement works addressed the reliability and safety issues that had been identified, ensuring successful operation of the station into the future.
Client: Teck Resources Ltd. (formerly Teck Cominco Ltd.)
Geographical Region: North America