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S11 20KV Oil-immersed Distrubition Transformer
The S-M series three-phase oil-immersed transformer is not just robust, it's also a game-changer in terms of efficiency and energy savings. Its fully sealed and oil-filled corrugated tank allows for thermal expansion and efficient heat dissipation, while the innovative insulation provides enhanced protection against short circuits. The windings are crafted from arranged in a multi-layer cylindrical configuration, and all fasteners are treated to prevent loosening. This transformer's exceptional efficiency and minimal energy losses mean potential significant power consumption reduction, a feature that has made it a staple in various industries, including power generation, transmission, and distribution, as well as industrial, mining, and transportation applications.
Model:S11-20kv
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Product Description
The S-M series three-phase oil-immersed transformer is designed with a fully oil-filled and sealed corrugated oil tank. Its elastic oil tank shell accommodates oil expansion and meets heat dissipation requirements. The transformer features a new insulation structure to enhance short-circuit resistance, a core made of high-quality cold-rolled silicon steel sheet, and high-voltage and low-voltage windings crafted from oxygen-free copper wires in a multi-layer cylindrical structure. Additionally, all fasteners undergo special anti-loosening treatment. This product is known for its high efficiency, low loss, and potential for substantial power consumption and operational cost savings, offering notable social benefits. It is widely deployed in power plants, substations, industrial and mining enterprises, ports, and airports, serving as a key component in diverse applications.
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Standards
- IEC60076-1:2011 Power transformers - Part 1: General
- IEC60076-2:2011 Power transformers - Part 2: Temperature rise for liquid-immersed transformers
- IEC 60076-3:2013+AMD1:2018 Power transformers - Part 3: Insulation levels, dielectric tests and external clearances in air
- IEC 60076-5:2006 Power transformers - Part 5: Ability to withstand short circuit
- 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 20KV Oil-immersed Distrubition Transformer
Working Environment and Conditions
- Ambient Temperature: No more than +40℃ No less than -25℃,
- The monthly average temperature is no more than +30℃,
- The yearly average temperature is no more than +20℃
- Altitude: No more than 1000m.
- The power supply voltage's wave is similar to a sine wave.
- Three-phase power supply voltage is approximately symmetrical.
- The total harmonic content of load current shall not exceed 5% of rated current.
- Installation Site: Indoor or outdoor.
Product characteristic
- The iron core is fabricated from high-quality silicon steel sheets, known for their excellent magnetic conductivity and minimal no-load loss.
- 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.
- This design provides strong mechanical strength, balanced ampere turn distribution, and improved resistance to short circuits.
- 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.
- 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.
- The product is equipped with a pressure relief valve, signal thermometer, gas relay, and other features to ensure safe operation.
- 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.
- With an aesthetically pleasing appearance, compact size, and minimal floor space requirement, this product represents an ideal maintenance-free solution.
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