Sourcing Requirements
make me an offer for a 1MVA transformer with the following data:? Power transformer: 1000kVA, 20/0.4kV Oil imersed, hermetic type cooling: ONAN Copper winding vector group: Dyn11 primary taps: +5% /+2.5% /0 /-2.5% /-5% impedance: < 6% Temperature rise: 65C as per IEC 60076 and UE 548/2014 ( ECODESIGN2) note: Need to have CE certification and fullfil the Ecodesign 2 requirements Ambient temperature: -25C to +40C Max Altitude: < 1000m This transformer will be used for a photovoltaic system supplied by 10 inverters of 100kW each, 400V output. So the 400V connectors need to accept on each phase 10 cable connections So actually the transformer will work reversed: Supplied from the 0.4kV side and supply into the national grid at 20kV