For African mining companies, cement plants, processing facilities and heavy industrial projects, power systems may involve different incoming medium-voltage levels during plant expansion or network integration. This dual high voltage transformer is engineered to accommodate two primary voltage requirements while maintaining stable low-voltage power distribution for industrial loads.

The design can be customized around the customer's existing grid voltage, transformer capacity and load profile, allowing the same transformer platform to serve different project configurations.

Industrial-Oriented Design

Dual HV input configuration for flexible medium-voltage connection
Reinforced mechanical structure for demanding industrial environments
Low-loss magnetic core to improve operating efficiency
Copper winding option for high mechanical strength and thermal performance
ONAN cooling without auxiliary fan power consumption
Optional temperature indicator, oil level indicator, pressure relief device and surge protection accessories

Recommended Applications

Copper, cobalt and gold mining operations
Cement and aggregate plants
Mineral processing facilities
Oil and gas supporting infrastructure
Large workshops and industrial production plants
Temporary or phased industrial power expansion

Typical Technical Data

Parameter	Typical Specification
Capacity	315–3150 kVA
HV	11/22 kV, 22/33 kV or project-specific
LV	400/415 V
Frequency	50 Hz
Cooling	ONAN
Installation	Outdoor / Indoor Substation
Insulation Medium	Mineral insulating oil

FAQ

Is this transformer suitable for mining projects?
Yes. The mechanical and thermal design can be adapted to mining and heavy industrial operating conditions.

Can the two HV voltage levels be customized?
Yes. The HV configuration is engineered according to the customer's actual network.

Can protection accessories be added?
Yes. Temperature, oil level, pressure relief and other monitoring or protection components can be configured.

Dual HV Oil Transformer 22/33kV 11/0.415kV for African Mining, Cement and Heavy Industrial Power Systems

22/33kV oil immersed transformer

11/0.415kV dual HV transformer