Oil Transformer

Oil transformers use mineral or biodegradable oil for insulation and cooling, suited for outdoor substations and high-capacity loads. FIJ TECH supplies ONAN/ONAF units with conservator or sealed-tank designs, custom impedances, and tap changers.

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%
SH15 Amorphous Alloy Oil Immersed Power Transformer
SH15 Amorphous Alloy Oil Immersed Power Transformer
Model Series

SH15 Amorphous Alloy Transformer
Connection group grade

Dyn11
Rated capacity(KVA)

30 ~ 2500 (KVA)
High voltage (kV)

11 10 10.5 6.3 6 (kV)
Low voltage(kV)

0.4 (kV)
Short-circuit resistance(%)

4 / 4.5 / 5
Tapping range

±5% or ±2×2.5%