SR 400 MVA 400 kV Power Transformer (Synthetic Ester Oil) and 63 MVAr 21 kV Variable Shunt Reactor (VSR) Synthetic Ester Oil-Immersed

Call for competition published on TED on 8 Oct 2026 by Helen Electricity Network Ltd. (Helen Sähköverkko Oy) (Finland), CPV 31170000 Transformers.

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Description

Helen Sähköverkko Oy is building new 400 kV substation in Sörnäinen, Helsinki Finland. Subject of the procurement is delivery of power transformer and VSR reactor for Helen Sähköverkko Oy. Intended delivery of power transformer and VSR reactor is year 2030. With this invitation to participate Helen Sähköverkko Oy is looking for capable and interested candidates to deliver the needed power transformer and VSR reactor. The delivery of power transformer and VSR reactor, including all needed transportation and erections, will be performed as turnkey deliveries. The transformer and VSR reactor deliveries will be separate from the substation construction project performed by other contractors, however, there is a need to coordinate the delivery with the construction work at site. Delivery of 400 / 400 / 125 MVA, 410 ± 6 x 1,33 % / 120 / 21 kV power transformer (Synthetic Ester Oil), equipped with on-load tap-changer, including: - Manufacturing of transformer with fittings and accessories - Testing - All necessary logistics e.g. - Sea transportation to Finland - Loading and unloading on the railway cart - Loading and unloading on road truck and transport to the site - Supplier may choose the means and route of transportation - All organizational work needed for logistics: arrangement of transportation from factory to site, customs clearance and forwarding - Unloading on the foundation - Erection, testing and commissioning at site. Delivery of 63 MVAr 21 kV Variable Shunt Reactor (VSR) Synthetic Ester Oil-Immersed including: - Manufacturing of reactor with fittings and accessories

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