Oil-Immersed Power Transformer
Heavy-duty power distribution for utility-scale and industrial applications.
Reliability at Utility Scale
Hartwerk Power oil-immersed transformers are engineered for the most demanding power distribution networks. Using high-grade mineral oil or synthetic ester fluids, these units offer superior cooling, dielectric strength, and overload tolerance for continuous operation at full rated capacity.
From 5 MVA distribution units to 100 MVA power transformers, every unit is built with grain-oriented silicon steel cores, continuously transposed conductors, and advanced conservator systems with silica gel breathers — ensuring decades of trouble-free service.
Key Features
Superior Overload Capacity
Oil-based cooling handles sustained peaks far beyond dry-type ratings.
Thermal Stability
Natural ester fluids offer a 300 °C fire point — far above mineral oil.
Field Serviceable
Accessible tap changers, bushings, and conservator for on-site maintenance.
Grid-Ready
Designed for utility interconnection meeting grid code requirements worldwide.
Technical Specifications
Applications
Utility Substations
Backbone power distribution for regional and national grid networks.
Mining Operations
Heavy-duty power for crushers, conveyors, and ventilation systems in remote mines.
Industrial Plants
Furnace transformers and rectifier duty units for steel, cement, and chemical plants.
Interested in learning more?
Our engineering team is ready to provide detailed specifications, performance curves, and a tailored quotation for your requirements.
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