Oil Immersed – 3 Phase
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Product specifications:
- Power: Up to 16 MVA
- Voltage: Up to 40.5 kVA
- Core Steel: Silicon Steel / Amorphous Alloy
- Windings: Copper / Aluminium
- Insulation liquid: Mineral oil /Natural ester
Introduction to Oil-Immersed Three-Phase Transformers
SOTEK’s three-phase oil-immersed distribution transformers are designed for reliable performance in medium-voltage power networks. Engineered with high-grade silicon steel cores and copper or aluminum windings, our transformers ensure efficient energy transmission, low losses, and long service life.
These units are insulated and cooled using high-quality mineral oil or natural ester, complying with international standards such as IEC 60076, ANSI/IEEE, and TCVN 6306.
🔧 Key Features:
- Power rating: Up to 16 MVA
- Voltage class: Up to 40.5 kV
- Cooling type: ONAN / ONAF (optional KNAN, KNAF)
- Core material: Cold-rolled grain-oriented silicon steel or amorphous alloy (on request)
- Protection: Hermetically sealed or with conservator tank
- Standards: IEC, ANSI, TCVN compliant
- Customizable tap changers (DETC / OLTC)
📦 Applications:
- Power distribution substations
- Industrial zones and manufacturing plants
- Commercial buildings and urban infrastructure
- Renewable energy integration (solar/wind)
