S11 10KV 11KV Oil-immersed electrical Transformer

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Product Description

The S-M series of three-phase oil-immersed transformers is a highly adaptable solution that is extensively utilized across multiple industries. This series is equipped with a fully sealed, corrugated oil tank featuring an elastic shell, which facilitates the expansion of oil due to temperature fluctuations and ensures efficient heat dissipation. The transformers are engineered with an advanced insulation system that enhances their resistance to short-circuit events. The core is constructed from premium cold-rolled silicon steel sheets, and both the high-voltage and low-voltage windings are made from oxygen-free copper wires, arranged in a multi-layer cylindrical configuration. These design elements contribute to the transformer's robustness and efficiency.

The S-M series transformers are optimized for minimal energy losses, which not only enhances their operational efficiency but also leads to significant energy and cost savings. This efficiency translates into substantial social benefits, including reduced environmental impact and lower operational costs for businesses.

These transformers are integral to the infrastructure of power plants, substations, industrial complexes, mining operations, ports, and airports, where they play a pivotal role in ensuring a stable and reliable power supply for critical applications. Their versatility and high performance make them an indispensable component in the modern industrial landscape.

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Standards

1. IEC60076-1:2011 Power transformers - Part 1: General
2. IEC60076-2:2011 Power transformers - Part 2: Temperature rise for liquid-immersed transformers
3. IEC 60076-3:2013+AMD1:2018 Power transformers - Part 3: Insulation levels, dielectric tests and external clearances in air
4. IEC 60076-5:2006 Power transformers - Part 5: Ability to withstand short circuit
5. IEC 60076-10:2016 Power transformers - Part 10: Determination of sound levels

Product Parameters

1.Power Capacity: 25-2500KVA

2.Voltage Level: 10KV,11KV, 13.8KV,15KV,17.5KV ,20KV,22KV ,24KV ,30KV,33KV 35KV 36KV and Others as customers requirement

3.Type of Voltage Regulation: Off-circuit or On-Ioad

4.Tapping Range: ±5 %  ±2x2.5 % ±4x2.5 %

5.Frequency: 50Hz or 60Hz

6.Phases: Three or single

7.Connection Symbol: Dyn11,Yyn0 ( or as requested)

8.Short- circuit Impedance:  Standard Impedance

9.Altiude is not exceeding 1000m,ambient temperature not exceeding 40OC. If it can't meet such conditions,we will modulate parameters in accordance with standard

S11 10KV 11KV Oil-immersed Distrubition Transformer

Working Environment and Conditions

1. Ambient Temperature: No more than +40℃ No less than -25℃, 
2. The monthly average temperature is no more than +30℃, 
3. The yearly average temperature is no more than +20℃
4. Altitude: No more than 1000m.
5. The power supply voltage's wave is similar to a sine wave.
6. Three-phase power supply voltage is approximately symmetrical.
7. The total harmonic content of load current shall not exceed 5% of rated current.
8. Installation Site: Indoor or outdoor.

Product characteristic

1. The iron core is fabricated from high-quality silicon steel sheets, known for their excellent magnetic conductivity and minimal no-load loss.
2. The high-voltage winding is designed in a layered structure, while the low-voltage winding for plate numbers up to 500KVA follows a layered configuration; products of 630kVA and higher utilize a new spiral-type winding. 
3. This design provides strong mechanical strength, balanced ampere turn distribution, and improved resistance to short circuits.
4. To prevent displacement during transportation, a positioning structure is integrated into the body, and all fasteners are equipped with securing nuts to ensure long-term operational stability.
5. This product is enclosed within a fully sealed structure. During packaging, a vacuum oil filling process is employed to eliminate moisture, isolate the transformer oil from external air, prevent oil aging, and enhance operational reliability. 
6. The product is equipped with a pressure relief valve, signal thermometer, gas relay, and other features to ensure safe operation. 
7. The adoption of a corrugated oil tank offers advantages such as simple processing, high mechanical strength, effective welding, and leak prevention. Furthermore, the oil's high fluidity improves the product's heat dissipation capacity.
8. With an aesthetically pleasing appearance, compact size, and minimal floor space requirement, this product represents an ideal maintenance-free solution.

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