3.3kV Three Phase Oil Immersed Distribution Transformer

Huawan 3.3 kv transformer, 1.6 MVA, is being exported to Saudi Arabia and features two copper windings. It has a primary voltage of 3.3 kV and a secondary voltage of 380 V, with ONAN cooling and a DYN 11 vector group. Essential protection equipment is included, along with a on-load tap changer, all compliant with IEC standards. Additionally, all necessary diagrams and certificates are provided.

distribution and power transformer

Specifications and Parameters of Oil Distribution 3.3Kv Transformer

ParameterDetails/Specifications
Rated Power50 kVA ~ 5000 kVA
Input Voltage3.3 kV
Output Voltage0.4 kV / 0.69 kV / 1 kV
Rated Frequency50 Hz / 60 Hz
Capacity100 L ~ 2000 L
Cooling MethodONAN (natural oil cooling)/ONAF (oil air cooling)
Impedance Voltage4% ~ 6%
Load Loss< 2 W / kVA
Short-Circuit Loss< 2%
Ambient Temperature-5 °C~40 °C (optional high temperature resistant version, up to 50 °C)
Weight200 kg ~ 3000 kg
External DimensionsCustomized according to power model (small sizes can be customized for design)
Insulation LevelF-grade (155 °C)/H-grade (180 °C)
Noise Level≤ 55 dB (low-noise type, suitable for residential areas)
Protection GradeIP20~IP65 (customized waterproof and dustproof type according to requirements)
Seismic ResistanceLevel 6 seismic resistance, suitable for installation in complex geological areas
Energy Saving PerformanceEfficient design that complies with national energy-saving standards (such as energy efficiency level 1 or 2)
Long Term StabilityLong term stable operation with low maintenance costs
Operational ReliabilityFully enclosed oil immersed design, excellent corrosion resistance and aging resistance
Certification StandardsISO certification standards



As one of the leading distribution transformer manufacturers, Huawan ensures high-quality production and adherence to international standards, delivering reliable and efficient solutions for diverse power distribution needs.

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Have Questions About Huawan Transformer and Switchgear? Get in Touch With Us Now!

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Company: Room 914-915, Block A, No. 188 Qianshan South Road, Shushan District, Hefei, China

Factory: South of Chunhua Road and West of Zhihe Road, Xuancheng Economic andTechnological Development Zone, Anhui, China
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Company: Room 914-915, Block A, No. 188 Qianshan South Road, Shushan District, Hefei, China

Factory: South of Chunhua Road and West of Zhihe Road, Xuancheng Economic andTechnological Development Zone, Anhui, China