10MVA Distribution Transformer

The 10 MVA 22 000/11 000 V Distribution Transformer is designed to deliver reliable medium-voltage power transformation for industrial, commercial, and utility applications. Built with premium-grade materials and advanced insulation systems, this transformer ensures high efficiency, reduced energy losses, and superior performance under varying load conditions.

Engineered to meet international standards such as IEC 60076, the unit is oil-immersed and naturally air-cooled (ONAN/ONAF), offering optimal thermal performance and extended operational life. Its robust tank design, hermetically sealed structure, and high mechanical strength provide exceptional protection against environmental and electrical stresses.

Ideal for substations, large manufacturing plants, and municipal power networks, this transformer ensures stable voltage regulation and minimal power interruption, even in challenging operating conditions.

Features

• Rated Capacity: 10 MVA

• Primary Voltage: 22 000 V

• Secondary Voltage: 11 000 V

• Frequency: 50 Hz

• Cooling Type: ONAN/ONAF (Oil Natural Air Natural / Oil Natural Air Forced)

• Vector Group: Dyn11 or YNd1 (customizable)

• Insulation Class: A / F, high dielectric strength oil

• Standards: IEC 60076 / SANS / ISO certified

• Tap Changer: Off-circuit or On-load tap changer (OLTC) available

• Construction: Hermetically sealed tank with conservator and breather

• Accessories: Temperature indicators, Buchholz relay, pressure relief valve, oil level gauge

Benefits

• High Efficiency: Minimizes load and no-load losses, reducing operational costs.

• Long Service Life: Built with corrosion-resistant materials and superior insulation systems.

• Enhanced Cooling: Dual ONAN/ONAF cooling ensures stable operation under varying load conditions.

• Low Maintenance: Hermetically sealed design minimizes oil oxidation and contamination.

• Stable Voltage Regulation: Maintains consistent output even during fluctuating input loads.

• Environmentally Reliable: Designed for outdoor installation with weatherproof coating and oil containment options.

• Customizable: Configurable to suit specific voltage ratios, vector groups, and cooling requirements.