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Triphase HV 35kV Power System Oil Immersed Transformer

The S11 series oil-immersed transformer is a high-efficiency, energy-saving power transformer designed with a fully sealed structure, primarily used in 10kV, 50Hz power transmission and distribution systems. This transformer utilizes advanced technologies and materials in its design and manufacturing to achieve goals of low loss, low noise, and high efficiency, while also reducing maintenance requirements and environmental pollution.
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  • S11-M

  • Giantele

  • 6/0.4kV-20/0.4kV

  • Three

  • 1 piece

  • 30kVA-1600kVA

Overview 

The S11 series oil-immersed transformer is a high-efficiency, energy-saving power transformer designed with a fully sealed structure, primarily used in 10kV, 50Hz power transmission and distribution systems. It is widely applicable for power and lighting supply in residential areas, commercial streets, industrial and mining enterprises, as well as rural areas. This transformer utilizes advanced technologies and materials in its design and manufacturing to achieve goals of low loss, low noise, and high efficiency, while also reducing maintenance requirements and environmental pollution.


Environmental Conditions

  • Maximum ambient temperature: +40℃

  • Minimum ambient degree: -25℃

  • altitude: < 1000m

  • Maximum monthly average relative humidity: 90%(20℃)

  • Installation location: installed in a place without fire, explosion danger, serious pollution, chemical corrosion and violent  vibration, indoor or outdoor.


Product Features


  • Reduced Losses: Utilizing premium silicon steel sheets and an optimized core structure, the S11 series dramatically lowers both no-load and load losses, manifesting in significant energy savings.

  • Minimized Noise: Through an innovative core structure and winding arrangement, coupled with advanced noise reduction technology, operational noise is substantially mitigated, ensuring a quieter environment for users.

  • Fully Sealed Design: The transformer's fully sealed corrugated oil tank design isolates it from external air, preventing oil contamination and moisture ingress, thereby improving insulation strength and extending its lifespan.

  • Enhanced Efficiency: The adoption of high-performance materials and forward-thinking design not only achieves reduced losses but also promotes efficient operation, leading to lower energy consumption and operational cost.

  • Robust Short-circuit Resistance: A specially designed winding configuration enhances the transformer's resilience against short-circuits, safeguarding the stability of the power grid and the safety of the electrical system.

  • Ease of Maintenance: The fully sealed construction diminishes the need for regular maintenance, while the thoughtful design allows for straightforward inspections and maintenance, streamlining routine upkeep and troubleshooting.

Technical Data

Model numberRated capacityJoin group labelVoltage combination>(kV)No-load lossLoad lossNo-load currentShort circuit impedanceDimensions(mm)Weight(kg)Gauge

kVA

Yyn0

or

Dyn11

High tensionTapping rangeLow pressureWW%%LWHOilWeightmm
S11-M-30
           
30

6

6.3

10

10.5

11
               

±5%

or

±2×2.5%

0.4

           
1006002.34.074066587574283400*500
S11-M-50
           
501308702.04.077067596588362400*500
S11-M-63
           
6315010401.94.08207001020112442450*500
S11-M-80
           
8018012501.94.08357051040117481450*500
S11-M-100
           
10020015001.84.08507151055122520450*500
S11-M-125
           
12524018001.74.011807401115154667500*500
S11-M-160
           
16028022001.64.012257751175176788500*500
S11-M-200
           
200340
           
26001.54.012457901195193898500*500
S11-M-250250
           
40030501.4
           
4.0134088012302091027550*500
S11-M-315
           
3154803650
           
1.44.014259351260234
           
1177550*500
S11-M-400
           
40057043001.34.0
           
1470
           
955
           
1330
           
2651399
           
550*600
S11-M-500
           
50068051001.24.0149096014052831576550*600
S11-M-630
           
63081062001.14.51585103013703171771660*660
S11-M-800
           
80098075001.04.51675109014803662128660*820
S11-M-1000
           
10001150103001.04.51775117515304022379660*820
S11-M-1250
           
12501360128000.94.51965115517005423023820*820
S11-M-1600
           
16001460145000.84.52055121018006163591820*820

 

Model numberRated capacityJoin group labelVoltage combination (kV)No-load lossLoad lossNo-load currentShort circuit impe danceModel numberRated capacityJoin group labelVoltage combination(kV)No-load lossLoad lossNo-load currentShort circuit impe dance

kVADyn11High tensionTapping rangeLow pressureW
           
W%
           
%
           

kVADyn11High tensionTapping rangeLow pressureWW%%
S11-M-303020
           

±5%

or

±2×2.5%

0.4
           
906602.15.5S11-M-315
           
31520
           

±5%

or

±2×2.5%

0.448040101.15.5
S11-M-50501309602.05.5S11-M-400
           
40057047301.05.5
S11-M-63
           
6315011451.95.5S11-M-500
           
50068056601.05.5
S11-M-80
           
8018013701.85.5S11-M-630
           
63081068200.96.0
S11-M-100
           
10020016501.65.5S11-M-800
           
80098082500.86.0
S11-M-125
           
12524019801.55.5S11-M-1000
           
10001150113300.76.0
S11-M-160
           
16029024201.45.5S11-M-1250
           
12501350132000.76.0
S11-M-200
           
20033028601.35.5S11-M-1600
           
16001630159500.66.0
S11-M-250
           
25040033501.55.5










   Note: The 20KV transformer can be according to customer requirements, the high voltage test can produce double voltage connection, the transformer input end can be easily  converted according to the difference of the two voltages of the net hole 2OKV and 1OKV by using the transfer switch.

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