12 July 2002 – Alstom has won an order in excess of €10m for three high-voltage direct current (HVDC) converter transformers with Canadian utility Manitoba Hydro. This brings the total number of such transformers ordered by the utility from Alstom to 15 in the past four years.
Manitoba Hydro generates 95 per cent of its electricity from hydro-electric resources and 75 per cent is from the Nelson River System. The HVDC converter transformers are needed to reinforce and expand the capacity of power transfer by HVDC transmission lines between northern Manitoba, Canada, where the generating stations are, to southern Manitoba, where the electricity is either distributed locally or transmitted to neighbouring Canadian provinces and US states.
Two 310MVA 500kV 3-phase HVDC converter transformers will go to the Henday converter station in northern Manitoba and a 292MVA, 500kV 3-phase HVDC converter transformer will be delivered to the Dorsey converter station in the south of the province.
The transformers will be designed and manufactured at Alstom’s Stafford transformer factory in the UK, part of the company’s Transmission and Distribution (T&D) Sector. The transformers will then be transported by road, sea and rail to site. The Stafford site has produced 46 HVDC converter transformers in the past decade.
Christian Couteret, Senior Vice President of the Power Transformer Business within Alstom T&D, said: “Manitoba Hydro have once again shown their confidence in Alstom’s ability to do a world-class job.”