10kV Step-Down Transformer

The product is S11 series three-phase oil immersed distribution transformer, which adopts oil cooling method. The coil adopts double winding coil and stacked winding structure. The winding material can be selected from aluminum wire or copper wire, and can be flexibly selected according to the needs of the distribution system. From design, production to testing, a rigorous quality control system is implemented throughout the entire process to ensure that transformers operate efficiently, with low losses and strong stability over the long term. This effectively reduces users' electricity costs and operational pressures, showcasing Sunrise's brand philosophy of "quality empowers distribution safety" and building a reliable power transmission chain for the distribution system.

Key Features of Our 10kV Step-Down Transformer

1. First level energy efficiency, energy conservation and consumption reduction

Adopting high permeability oriented silicon steel sheets and optimized core structure design, coupled with oxygen free copper windings, significantly reduces no-load and load losses, meeting the national first-class energy efficiency standards. Compared to traditional transformers, the annual power saving rate can reach 15% -25%, and long-term operation can save users a lot of electricity costs, combining economic benefits and environmental value.

2.Stable and reliable, strong impact resistance
The winding adopts oil immersed sealed insulation, double winding and laminated winding structure, with excellent insulation performance, high voltage resistance and aging resistance; The iron core adopts a fully inclined joint structure to reduce hysteresis loss, with low operating noise (≤ 60dB), strong short-circuit resistance, overload protection function, and can effectively cope with complex working conditions such as grid voltage fluctuations and load impacts, ensuring long-term stable operation.

3.High quality materials, exquisite craftsmanship
The core components are made of high-quality materials from the industry: the iron core is made of 30Q130 high magnetic conductivity silicon steel sheets, the winding is made of aluminum/copper wire (optional), and the oil immersed transformer uses 25 # transformer specific oil (with good heat dissipation and strong insulation); Strict process standards are implemented during the production process, and the coils adopt double wound coils and stacked winding structures with high winding accuracy. Each process undergoes multiple inspections to ensure excellent product quality; The product is produced in Hunan, China and has guaranteed quality.

4.Scene adaptation, flexible selection
For oil immersed single-phase distribution transformers, multiple capacity specifications are available, and the winding material can be selected from aluminum or copper wire. It can adapt to different installation environments such as outdoor, indoor, humid, and dusty environments. It is mainly used in distribution systems to provide stable power for power electronic equipment and meet the needs of various power consumption scenarios.

5.Intelligent operation and maintenance, worry free and convenient
Equipped with complete monitoring and protection devices: equipped with oil level gauge, oil temperature gauge, gas relay, pressure release valve, with overload protection function, real-time monitoring of oil level, oil temperature and internal status, automatic alarm in case of abnormality; Simultaneously reserve intelligent monitoring interfaces, support access to IoT systems, and achieve remote operation and maintenance managemen.

6.Safe and compliant, with adequate protection in place
Strictly following the relevant standards for distribution transformers, certified by CE and RoHS, with a protection level of IP54, dust-proof, splash proof, and corrosion-resistant; The shell is welded with steel plates, which has high strength and impact resistance, and can effectively protect internal components; The grounding device is standardized and has overload protection function to eliminate risks such as leakage and overload, ensuring safe operation and maintenance.

It can be used in various scenarios.

Sunrise S11 three-phase oil immersed distribution transformer, designed specifically for distribution systems, has become a core power equipment in industrial, commercial, public facilities and other fields with stable performance and wide adaptability. It accurately meets the distribution needs of various scenarios and provides reliable power support for power electronic equipment

Details of iron core structure

Made of 30Q130 high magnetic conductivity oriented silicon steel sheets, which are precisely sheared and stacked with full oblique seams, without a through screw design, reducing magnetic resistance and iron loss, and improving energy efficiency; The surface of the iron core has undergone rust prevention and insulation treatment, effectively preventing oxidation and corrosion, and extending its service life; Equipped with grounding leads to ensure safe operation.

Winding process details

Both the high voltage winding and low voltage winding are made of aluminum/copper wire (optional), and adopt a double winding coil and stacked winding structure. The stacked winding has high precision and the winding is compact; The insulation is sealed by oil immersion, and the insulation layer is uniform and dense, high voltage resistant and anti-aging; Large conductive area, low loss, strict tension control during winding process, strong short-circuit resistance, and good overload operation capability; The winding lead wire is connected by copper bars, with good contact and stable conductivity.

Details of heat dissipation structure

Adopting oil cooling method, equipped with corrugated oil tank structure, increasing the heat dissipation area, without the need for additional heat dissipation fans, natural heat dissipation efficiency is high; The surface of the fuel tank is treated with acid pickling, phosphating, and painting to prevent rust and corrosion. It is suitable for outdoor environments and can effectively ensure the long-term stable operation of transformers.

Details of protective devices

Equipped with gas relays (light gas alarm, heavy gas trip), pressure release valves (automatic overpressure relief), oil level and temperature gauges (real-time monitoring of oil level and temperature), the core has overload protection function, ensuring the safe operation of transformers in all aspects; All protective devices have been calibrated, with high sensitivity and strong reliability.

Sunrise S11 three-phase oil immersed distribution transformer strictly follows international and domestic distribution equipment standards, and has passed multiple authoritative certifications, ensuring both quality and safety

Adopting customized heavy-duty packaging solution: Oil immersed transformers are wrapped in wooden pallets and waterproof oilcloth, with reinforced steel strips added on the outer layer to prevent displacement and collision during transportation; Dry type transformers are packaged in wooden boxes with shock-absorbing pearl cotton lining, effectively buffering impact forces while also being treated for dust and moisture prevention.

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