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11kV To 0.4kV oil type Transformer

For reliable medium-voltage to low-voltage power distribution, our 11kV To 0.4kV Transformer stands as a superior choice. Engineered for durability and efficient energy transfer, this Step Down Transformer is crucial for industrial plants, commercial complexes, and utility substations. Our Step Down oil type Transformer utilizes high-quality mineral oil for both insulation and cooling, ensuring stable operation under demanding loads and enhancing the overall lifespan of the unit.


Our 11kV To 0.4kV oil type Transformer is meticulously constructed using premium grain-oriented silicon steel cores and copper windings to minimize no-load losses and optimize performance. The robust steel tank provides excellent mechanical protection, while the advanced breather system prevents moisture ingress, maintaining the dielectric strength of the oil over time. This transformer is designed for easy installation and requires minimal maintenance, offering a cost-effective and dependable solution for your power conversion needs.

Key Product Specifications & Features

Parameter Specification Standard / Range
Primary Voltage 11 kV IEC 60076
Secondary Voltage 0.4 kV (400V) IEC 60076
Frequency 50 Hz / 60 Hz As per requirement
Cooling Type ONAN (Oil Natural Air Natural) IEC 60076-2
Vector Group Dyn11, Yyn0, or others Customizable
Insulation Class Class A IEC 60085
Impulse Level 75 kV IEC 60076-3
Noise Level < 65 dB(A) NEMA TR-1
Ambient Temperature -5°C to +40°C IEC 60076-12

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