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Strömberg 4 MVA 21/6.6kV GSU-Transformer

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Technical specifications

Year of Manufacture1988
ApplicationPower Transformer
Basic Transformer ConceptOil-immersed, Conservator Type
Tank DesignCorrugated tank design
Number of Phases3-phase
Rated Power4 000 kVA
Method of CoolingONAN
Voltage Ratio21 000 / 6 600 V
Voltage RegulationTo be adviced!
Tapping RangeTo be adviced!
Frequency50 Hz
Insulation levels HV(Um / LI / AC) 24 / 125 / 50 kV
Insulation levels LV(Um / LI / AC) 7,2 / 60 / 20 kV
ConnectionYNd11
Impedance6,8 %
No-load losses3 943 W
Load-losses23 174 W
Total Weight8 400 kg

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When you see the BTB nameplate on a transformer, you know it meets our strict quality standards. Our distribution transformers are manufactured by SEM Transformatör, whose certified quality guarantees durability in demanding conditions.

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