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ABB - Poste de l'Outaouais

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As the Hydro-Québec and Ontario Power Generation grids are not synchronized, the Outaouais interconnection substation has a back-to-back configuration to keep them separate while allowing power interchanges between the two.

The Outaouais substation has a capacity of 1,250 MW.  It is located on some 93,000 m, north of the  315 kV Chénier-Vignan line. The switching section had to be commissioned in late 2008 and the converter section in mid-2009.

Hydro-Québec awarded ABB the contract for the engineering, manufacture, construction, installation and commissioning of the converter section.  ABB then contracted Pomerleau to construct the 3,300 m² control building, the foundations and the steel framework for the electrical equipment in the Converter Section.

The underground concrete foundations extend over a 1.8 km area and there are 6 km of surface conduits to house the electrical cables.

The Outaouais susbstation comprises two 315/230-kV converters, each with a capacity of 625 MW, six 315/75-kV power transformers and a spare, and six 230/75kV power transformers and a spare.  Each transformer weighs 256 tonnes.

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Stipulated price
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Type of service :
Self-performed work, Health and safety
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521, 6th Avenue
Saint-Georges, QC
Canada G5Y 0H1

Phone: (418) 228-6688
Fax: (418) 228-3524
E-mail: eric.lessard @ pomerleau.ca

Website: www.pomerleau.ca
Printed on: October 22, 2016