Oil-immersed Distribution Transformers

• Kecheng's oil-immersed distribution Transformers adopts high-precision stepped seam iron core technology, selects high-permeability cold-rolled silicon steel sheets, and automatically stacks them through production lines imported from Germany to strictly control silicon steel sheet burrs ≤0.02mm to reduce hysteresis, vibration and noise.
• With the shock absorption structure of the iron core clamp and the design of the low-noise fuel tank, the operating noise can be controlled within 45dB, which fully complies with the IEC 60076 noise standard, without the need to install additional sound insulation facilities, and is suitable for scenes adjacent to the distribution room and residential areas to avoid the risk of noise complaints.

• Buyers are sensitive to energy consumption costs in long-term operations, and the products are optimized for loss control in a targeted manner, which fully meets the GB 20052-2020 energy efficiency standard and reaches the first-level energy efficiency level.
• The winding layout is optimized through magnetic leakage simulation calculation, and oxygen-free copper wire flat wire winding is selected to reduce eddy current loss and stray loss. The no-load loss is 18% lower than that of ordinary products, and the load loss is reduced by 15%.Taking 1000kVA capacity equipment as an example, it can save about $3,000  in electricity bills every year.
• At the same time, it complies with the EU EcoDesign energy regulations and is suitable for projects with clear energy efficiency requirements such as green buildings and energy-saving power stations to help buyers pass energy-saving acceptance.

• Buyers generally pay attention to the convenience of late maintenance of equipment and reduce the length of downtime and maintenance.
• The product adopts a flip-type fuel tank cap design, with a standardized maintenance window, which can complete the inspection and maintenance of the iron core and winding without overall disassembly;
• the oil storage cabinet is equipped with a transparent oil level observation window, with an oil quality sampling valve, the oil quality status can be quickly detected without emptying the oil.
• The terminals are designed with modular copper bars and are clearly marked. They can be quickly connected during later line transformation or expansion.
• The average maintenance time is 40% shorter than that of traditional products, which greatly reduces operation and maintenance labor costs and power failure losses.

• High Energy Efficiency Design: Optimized core and winding structure reduces power loss, improves efficiency, and supports energy conservation across the grid.
• Multiple Safety Protections: Advanced insulation, oil cooling, and protective mechanisms isolate risks, ensuring stable and secure operation even under continuous load.
• Long Service Life: Durable construction and effective cooling extend transformer lifespan, reducing replacement frequency and enhancing overall grid reliability.

 Note 1: For transformers with rated capacity below 500KVA, the load loss value on the left og the slash in the table is applicable to Dyn11, and the load loss value on the right of the slash ia applicable to Yyn0.
Note 2: The product performance parameters of other capacities shall be determined by the user through consultation with the factory