Transformers; Project Rauhalahti 2026
Buyer: Alva-yhtiöt Oy
- Published
- 20 June 2024
- Procedure
- Negotiated procedure
- Lots
- 1
- Notice number
- 00366464-2024
- Reference
- 119d5fe3-caef-408d-8065-b42dfd17dd0f
- Official source
- Official source
CPV codes
- 31170000Transformadores
Description
Specifications for the 2 x 110/20 kV / 63MVA transformers Construction •The transformer shall be delivered complete with all normal parts and accessories. •required for proper performance and transport, including those not explicitly mentioned in the specification. •The thermometers and oil level indicator shall be placed so that these can be read from the ground levels. •Each alarm and trip contact of the protective equipment shall be electrically separated from any other contact. The continuous current carrying capacity of the contacts shall not be less than 0.5 A, and the breaking and making capacities shall not be less than 0.2 A (L/R = 40 ms) at 250 v Do. Transformer type •Air-cooled Oil transformer 3 phase. •Cooling method ONAN (ONAF as option). •Load will be at nominal load many hours per day. Nominal values •Nominal power (in all adjustment positions) 63 MVA ONAN. •Nominal voltage 117 ± 9 x 1.67/ 20 kV. •Frequency 50Hz.•Short circuit impedance 10-12%. •Switching group YNd11. •Standards IEC 60076, IEC60354 Genelec / SFS6001. •Primary Insulation Level UM123 LI550 AC230. •Primary bushings insulation UM123 LI550 AC230. •Secondary insulation level UM24 LI170 AC70. •Secondary…
Award criteria
- Price — Price
Awards
| Awarded to | Amount | Date |
|---|---|---|
| Hitachi Energy Finland Oy | €2,200,000 | — |
Official publications
- TED · 00366464-2024 · 20 June 2024
- OJS · 119/2024 · 20 June 2024
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