Teshmont acted as a subconsultant to Wood Group PLC (formerly Amec Foster Wheeler), with the end client being Teck Resources Ltd. (formerly Teck Cominco Ltd.), for the replacement of the aging Tadanac and Warfield 63 kV substations near Trail, British Columbia in the Interior of British Columbia, Canada.
Teck Resources operates one of the largest fully integrated lead/zinc smelters in the world in Trail. For over 60 years, the power required to run the smelting operation was supplied and distributed through two switching stations. Due to the number of years in-service, the substations needed to be upgraded to address reliability and safety issues.
The project required the replacement and modernization of the existing 63 kV substations at Tadanac and Warfield. This was achieved by establishing a new 230 kV substation at Warfield, interconnecting the 230 kV substation via a 230 kV line, and operating in parallel with the existing 63 kV transmission lines.
Teshmont designed the ac control and protection systems for the new Emerald 63 kV substation, including protection for incoming and outgoing transmission lines and feeders and for transfer tripping of lines to Emerald at Waneta Generating Station.
In addition, Teshmont planned and designed the replacement of existing outgoing feeders (overhead lines and cables) from Tadanac/Warfield to the zinc plant by new outgoing feeders from Emerald to the zinc plant, and provided assistance as needed during the construction phase. Short circuit studies were performed to determine line protection settings, as well as system studies and designs of Remedial Action Scheme (RAS) to protect the power system.
Teshmont prepared commissioning plans, supervised the commissioning activities, and carried out commissioning of control and protection systems at Emerald. At the project’s conclusion, the refurbishment and modernization works addressed the potential reliability and safety issues that had been identified. In-depth training was provided to the staff designated to operate the station, ensuring successful operation of the station into the future.
Client: Teck Resources Ltd. (formerly Teck Cominco Ltd.)
Geographical Region: North America