S11 Series 10KV~35KV Oil-immersed Transformer

I. Product Features

The core uses high-quality, high-permeability grain-oriented silicon steel sheets with a fully oblique joint, no-perforation, and multi-stage stepped stacking structure, effectively reducing magnetic resistance, no-load loss, and operating noise. The core surface has an insulating coating that is moisture-proof and rust-proof.

The windings are made of high-purity oxygen-free copper wire, offering excellent conductivity, low heat generation, and high mechanical strength. The high-voltage winding has a cylindrical/layered structure, while the low-voltage winding has a helical structure, ensuring uniform ampere-turn distribution, ample insulation margin, and strong short-circuit withstand capability.

A corrugated plate type fully sealed oil tank structure completely isolates the transformer oil from the outside air, preventing oil oxidation and moisture aging, extending insulation life, and enabling long-term maintenance-free operation. The corrugated plates also provide heat dissipation and oil volume expansion compensation, resulting in higher heat dissipation efficiency.

The transformer body undergoes vacuum drying and vacuum oil injection processes, and the insulation material is fully impregnated, ensuring stable and reliable insulation performance, high temperature resistance, and suitability for long-term continuous operation.

Standard equipment includes pressure relief valves, oil temperature and level indicators, and sealing gaskets, providing overvoltage protection, oil leakage monitoring, and abnormality warning functions for safer operation.

The overall structure is compact and robust, resistant to impact during transportation, operates with low noise, and features a standard gauge design, allowing for outdoor ground mounting, pole mounting, or integrated transformer substation installation, adapting to various installation environments.

II. Performance Advantages

Ultra-low loss, high efficiency and energy saving, significantly reducing power consumption and lowering electricity costs during long-term operation; low-noise operation, environmentally friendly, meeting noise control requirements in residential and commercial areas; fully sealed design, maintenance-free, no need for regular oiling or changing; reliable insulation, longer lifespan, with a total service life of over 20 years; excellent heat dissipation, strong overload capacity, able to withstand short-term overloads and load fluctuations; strong short-circuit resistance, effectively resisting short-circuit impacts and ensuring power supply continuity.

III. Technical Parameters

IV. Scope of Application:

Power supply for new and upgraded urban and rural power grids, municipal engineering projects, residential communities, schools, and hospitals;

Power distribution for industrial plants, mines, metallurgical, chemical, and building materials enterprises;

Power supply for commercial complexes, office buildings, hotels, and data centers;

Prefabricated substations, outdoor pole transformers, temporary power supply, and infrastructure projects.

V. Quality Assurance:

Raw materials are rigorously selected, and quality control is implemented throughout the entire process;

products undergo comprehensive testing including turns ratio, DC resistance, withstand voltage, loss, temperature rise, and partial discharge before leaving the factory;

product certificates, factory test reports, instruction manuals, and comprehensive after-sales technical support and warranty services are provided.