technical parameter
11kv 250kva Transformer Product Overview and Features
Product Overview
Designed for both pole mounting and distribution station applications, the 250kVA, 11kV Oil Immersed Distribution Transformer delivers reliable power for daily lighting and factory operations, with LV output reaching 0.4kV. Equipped with hermetically sealed structures and corrugated radiators, its tank design accommodates thermal expansion while preventing atmospheric contact with transformer oil. Units can be engineered to meet unique customer specifications.
Product Attributes
Product Features

Our distribution transformers are engineered using proprietary technology and advanced design software, fully meeting IEC and Chinese national standards.

The magnetic core is manufactured from premium cold-rolled, grain-oriented silicon steel, processed with step-lap technology on an automated GEORG core lamination line from Germany.

The oil tank adopts a corrugated design, produced by GEORG’s precision ultra-corrugation equipment. Surface pre-treatment and coating use leading international materials, with processes including degreasing, pickling, phosphating, electrophoresis, powder spraying, and thermal curing for superior corrosion resistance.

HV windings are made from high-strength enamelled or paper-insulated conductors, while LV windings use enamelled wires and copper strip windings. This ensures balanced ampere-turn distribution, optimized insulation, and strong short-circuit endurance.

The active part uses a core free-hanging structure, with high-quality acrylate rubber gaskets to resist ageing from heat and sunlight.
Packaging and transportation
About Us
GNEE Electrical Equipment Co., Ltd. was established in 2008 and is located in Anyang City, Henan Province. It is a digital management enterprise integrating power equipment research and development, production, sales and installation. It has more than 200 employees and more than 160 cooperative countries. The company's products cover 6kv, 11kv, 22kv, 35kv, rated capacity 50kva to 5000kva and other power transformers, dry-type transformers, oil-immersed transformers, distribution transformers, box-type substations, and wind power and photovoltaic power generation equipment.
With years of accumulation in the transformer industry and strong technological innovation capabilities, it provides comprehensive solutions for the international power industry.Welcome to your inquiry!
Email:✉️ sales@gneesteels.com
Phone / WhatsApp: +86 158 2468 7445