30 kVA 20 kV Oil-Immersed Transformer Pure Aluminum

Product overview

30KVA 20KV All-Aluminum Winding Oil Immersed Transformer Outdoor Power Distribution Equipment

Currently, small and medium-sized outdoor power distribution projects generally face the industry pain points of high equipment purchase costs and large long-term operation and maintenance investments. Many purchasers who choose traditional winding transformers encounter problems such as excessive weight and additional transportation and installation costs. Fengguang offers a targeted solution: a 30KVA 20KV Pure aluminum Oil Immersed Transformer. The entire winding is made of pure aluminum with an optimized structure, reducing the weight of the unit while ensuring the stability of 20kV high-voltage insulation. This reduces transportation and foundation construction costs, resulting in lower no-load losses during long-term operation and providing a stable power output for rural power grids and small factories.

This equipment relies on circulating insulating oil for heat dissipation, offering superior efficiency compared to similarly sized dry-type transformers. Suitable for outdoor installations, it's commonly used as the core transformer unit within box-type substations, paired with a matching high-and-low voltage switchgear to complete the entire power distribution circuit. In distributed photovoltaic projects, it can be used with an Electric Power Converter to adjust power parameters, meeting the voltage boosting and distribution needs of small Combined Photovoltaic Substations . The product is suitable for rural power grid upgrades, small processing plants, livestock farms, and temporary outdoor construction power distribution. The pure aluminum winding material significantly reduces upfront procurement costs. The equipment boasts excellent overload tolerance, with voltage output fluctuations controlled within standard ranges, providing stable protection for downstream motors, lighting, and photovoltaic equipment from voltage surges. Compared to traditional copper-winding oil-immersed equipment, its lightweight design reduces foundation load requirements, eliminating the need for additional civil engineering reinforcement. The fully sealed oil tank structure minimizes leakage, making it suitable for complex outdoor conditions such as rain and dust. Its overall service life can exceed thirty years.

Installation & maintenance notes

• Insulation resistance testing must be completed before commissioning. Grounding wiring should be completed using the matching High And Low Voltage Switchgear . Grounding resistance must comply with local power regulations.
• Outdoor placement requires adequate ventilation clearance. Insulating oil withstand voltage should be tested annually. Filter and replace the oil promptly if it fails to meet standards to extend the overall lifespan of the unit.