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Victoria Terminal Substation

Big power in a small space

  • 10 KM

    240kV Cable Duct

  • 2

    City Lots

  • 450

    MVA Transformer

  • Edmonton, Alberta

    Edmonton, Alberta

Improving power supply to Edmonton’s Downtown core

Working closely with EPCOR, we created a remarkably compact design fit into the small footprint available at the Victoria Terminal Substation. We designed the 240 kV (kilovolt) to 72 kV at the Victoria Terminal Substation by providing detailed design, project management, construction management, and on-site support.

The existing 72 kV six breaker radial bus was upgraded to a nine-breaker ring bus and a new 240 kV / 72 kV 450 MVA transformer was added to the substation. Two oil-filled 72 kV lines were relocated and a new 240 kV XLPE underground cable was terminated in the substation. Space underground was limited, so the transformer was put on a deep, rather than wide, oil containment pad. The containment pit has 300 mm of gravel suspended above on a grate. The new 450 MVA power transformer is among one of the largest in the city. Special transportation arrangements had to be made to get the 284 metric tonne transformer installed on its pad. This included moving the transformer while roads were frozen, and lifting telephone cables so the transformer could fit under them.

Finally, an attractive architectural wall was designed for an aesthetically pleasing fit into the existing surroundings, suppressing the transformer hum to low levels.

At a Glance



  • Power - Detailed Engineering
Meet Our Team

Rocky Asuncion, Senior Transmission Line Engineer

Projects with many challenges to overcome are the most rewarding.
Rocky Asuncion Senior Transmission Line Engineer Read More

Ben Shen, Substation Engineering Manager

Being proactive on projects and providing construction-efficient and operation and maintenance-friendly solutions to the most complex problems is the best thing I can do for our clients.

Rocky Asuncion

Senior Transmission Line Engineer

Ben Shen

Substation Engineering Manager

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