400kVA 11kV Oil Immersed Distribution Transformer China Manufacturers Suppliers Factory Exporter, 11/0.4kv 400kVA Oil Immersed Electrical Power Distribution Transformer with Certificate

application Details

11kv 400kva Oil Immersed Transformer

S11-S13 series 400kVA transformers utilize advanced technology and high-grade materials in coil, body, and insulation. With minimized no-load and load losses, balanced magnetic circuits, and optimized structural reliability, these transformers ensure efficient and stable performance.

Efficient: S11-S13 reduce no-load loss by 20–45% and current by 60–80% vs. S9.
Durable: Fully sealed fuel tank slows insulation oil aging, extending service life.
Quiet: Core design lowers noise by 7–10dB, ideal for residential use.
Reliable: Improved tank parts ensure high sealing and stable operation.
Compact: Corrugated plate radiators replace the oil conservator.

technical parameter

11kv 400kva Transformer Product Overview and Features

Product Overview

Engineered with cutting-edge techniques, the S11-S13 series 400kVA transformers deliver exceptional efficiency. Using superior materials for coil, body, and insulation, they reduce energy losses, enhance reliability, and achieve significant energy savings with a well-designed magnetic circuit.

Technical Data

Product Features

►High efficiency & eco-friendly
S11-S13 series transformers achieve lower losses and currents than S9 models. With a circular wound iron core, the silicon steel sheet orientation is fully utilized. The natural compact design avoids the need for clamps, reducing no-load loss by 20–45% and no-load current by 60–80%.

►Extended service life
The fully sealed fuel tank, secured by welding or bolts, keeps insulating oil completely isolated from air, slowing insulation aging and extending transformer life.

►Reduced noise
The seamless compact core structure cuts noise by 7–10dB, making the unit suitable for residential and building environments.

►Stable and reliable operation
Optimized components inside the tank enhance sealing reliability and improve performance consistency.

►Compact structure
Corrugated plate radiators in S11 and S13 act as thermal regulators, expanding and contracting with oil temperature changes, replacing the oil conservator effectively.

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

Advantages

Why Choose Us?