Oil Power Transformer

Oil power transformers use insulating oil for dielectric strength and heat dissipation, enabling ratings up to 100MVA and voltages above 132kV. FIJ TECH provides mineral oil or biodegradable ester fluid options with conservator or sealed-tank designs.

S13 Series 3 Phase Oil-Immersed Power Transformer
S13 Series 3 Phase Oil-Immersed Power Transformer
Model Series

S13 Series Oil-Immersed Power Transformer
Connection group grade

Yyn0 or Dyn11
Rated capacity(KVA)

30 ~ 3150 (KVA)
High voltage (kV)

10kV / 6.3kV / 6(kV)
Low voltage(kV)

0.4(kV)
Short-circuit resistance(%)

4.0 / 4.5 / According to customer needs
Tapping range

+5%
+2×2.5%
S20 Energy Efficiency Stage 2 Oil-Immersed Transformer
S20 Energy Efficiency Stage 2 Oil-Immersed Transformer
Model Series

S20 Energy Efficiency Stage 2 Oil-Immersed Transformer
Connection group grade

Yyn0 or Dyn11
Rated capacity(KVA)

30 ~ 2500 (KVA)
High voltage (kV)

10kV / 6.3kV / 6(kV)
Low voltage(kV)

0.4(kV)
Short-circuit resistance(%)

4.0 / 4.5 / 5 / According to customer needs
Tapping range

+5%
+2×2.5%
S22 Type Energy Efficiency Primary Oil Immersed Transformer
S22 Type Energy Efficiency Primary Oil Immersed Transformer
Model Series

S22 Type Energy Efficiency Primary Oil Immersed Transformer
Connection group grade

Yyn0 or Dyn11
Rated capacity(KVA)

30 ~ 2500 (KVA)
High voltage (kV)

10kV / 6.3kV / 6(kV)
Low voltage(kV)

0.4(kV)
Short-circuit resistance(%)

4.0 / 4.5 / 5 / According to customer needs
Tapping range

+5%
+2×2.5%