20kVSeries Oil-immersed Distribution Transformer

The 20kV series oil-immersed distribution transformers are crucial equipment in distribution networks and power supply systems of industrial and mining enterprises. They are widely used in industrial and mining enterprises, agriculture, and civil buildings.

• High Efficiency and Low Loss: The product features high efficiency and low loss, which can save a significant amount of electricity consumption and operating costs.
• Short-Circuit Resistance: The core of the device adopts a new insulation structure, enhancing its short-circuit resistance.
• High-Quality Materials: The use of oxygen-free copper wire with a lower resistivity and a series of additional surface treatments makes the wire smoother and free of burrs and sharp corners, reducing the transformer's load loss and improving its electrical performance. High-quality laminated wood insulation components are selected, which will never crack, even under short-circuit current. Deeply filtered transformer oil is used, with lower levels of water, gas, and impurities, ensuring the transformer operates more reliably. High-quality rubber sealing materials are chosen, effectively preventing aging and leakage.
• Good Technical and Economic Performance: Compared to the S13 series, the S20 series has an average reduction of 30% in no-load loss, a 70-85% decrease in no-load current, a 10K reduction in average temperature rise, and a lifespan more than double that of the S13 series. It can operate long-term even under 20% overload conditions. The average noise level is reduced by 2-4 decibels.
• Fully Sealed: The "M" in S20 indicates that the oil tank adopts a fully sealed structure. Compared to ordinary oil-immersed transformers, the fully sealed distribution transformer eliminates the oil conservator and uses the oil tank's corrugated fins as cooling and heat dissipation elements. The corrugated oil tank is made of high-quality cold-rolled thin steel plates on a dedicated production line. The corrugated fins can expand and contract with the volume change of the transformer oil, thus isolating the transformer from the atmosphere, preventing and slowing down oil deterioration and insulation moisture, enhancing operational reliability, and requiring no maintenance during normal operation.
• Optimized Design: Utilizing the company's unique calculation program, the transformer core, coils, body, leads, and oil tank are comprehensively optimized to ensure product performance.
• Low Noise: Superior processing equipment, meticulous material selection, and efficient manufacturing processes result in the transformer having low loss, low partial discharge, and low noise.
• Environmentally Friendly and Energy Efficient: The product is of superior quality, environmentally friendly, energy-saving, reliable in operation, and effectively reduces operating costs.
• Strong Adaptability: It is suitable for power plants, urban and rural power grids, industrial and mining enterprises, etc.
• Compact Structure: The product features a compact structure, stable electrical performance, sufficient capacity, small size, light weight, and convenient use and maintenance.

1. Reduced line loss rate: A higher voltage level means a smaller current, thereby reducing energy loss in the line.
2. Land resource conservation: With enhanced transmission capacity, the number and occupied area of transformers can be reduced, conserving land resources.
3. Obvious energy-saving effect: By reducing line loss and improving efficiency, the energy-saving effect of 20kV transformers is significant.
4. Low loss: Advanced design and materials are adopted, resulting in lower no-load and load losses of the transformer.
5. Low partial discharge: Optimized design reduces partial discharge, enhancing the stability and reliability of the transformer.
6. Low noise: Efficient production and design keep the noise level of the transformer low during operation.
7. Environmentally friendly and energy-saving: The product design takes environmental protection into account, with low energy consumption during operation, meeting energy-saving requirements.
8. Reliable operation: Through optimized design and strict quality control, 20kV transformers operate more reliably.
9. Easy maintenance: Many models of 20kV transformers adopt a fully sealed design, reducing maintenance needs and lowering operating costs.
10. Adaptability to harsh environments: Some models of transformers can meet special environmental usage conditions, such as high altitudes, high temperatures, or humid and polluted areas.

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