Reliable Power Transformers
Manufacturer of high-efficiency dry-type and oil-immersed transformers for industrial projects.
S20 Oil Immersed Transformer Series
OverviewS20 Oil Immersed Transformer manufacturer in China. The S20 series oil-immersed oil immersed transformer is engineered for reliable outdoor grid service, covering 100 kVA to 31500 kVA with her...
Overview
S20 Oil Immersed Transformer manufacturer in China. The S20 series oil-immersed oil immersed transformer is engineered for reliable outdoor grid service, covering 100 kVA to 31500 kVA with hermetically sealed oil tank construction, low-loss silicon steel core and IEC 60076 type-test certification.
Applicable Scenarios
- Urban and rural power distribution networks
- Industrial plants and factories
- Commercial buildings and residential communities
- Outdoor substations and pole-mounted installations
- Renewable energy and mining projects
Core Parameters
- Rated power: 100 kVA to 31500 kVA
- High voltage: 30, 50, 63, 80, 100, 125, 160, 200, 250, 315, 400, 500, 630, 800, 1000, 1250, 1600, 2000, 2500, 3150, 4000, 5000, 6300, 8000, 10000, 12500, 16000, 20000, 25000, 31500 kV
- Low voltage: 10, 35 kV
- Cooling: ONAN (oil-immersed, self-cooled)
- Frequency: 50 Hz / 60 Hz
- Standard: IEC 60076, GB 1094
Selection Guide
Select the S20 model whose rated power and voltage combination matches your load profile from the Core Parameters above. Confirm the connection symbol (Yyn0 or Dyn11), impedance voltage and vector group required by your grid. Contact our engineers for a free S20 transformer sizing and quotation.
Frequently Asked Questions
What is the difference between S20 and other Oil Immersed Transformer series?
The S20 series represents a specific energy-saving generation of Oil Immersed Transformers. Each generation (S11, S13, S18, S20, S22 / SCB10, SCB11, SCB12, SCB13, SCB14, SCB18) offers progressively lower no-load and load losses and better efficiency, so the S20 is a more advanced option within its class.
What is the rated power range of the S20 series?
The S20 series covers 100 kVA to 31500 kVA. Custom ratings are available on request.
What voltage ratings are available for the S20 series?
Standard S20 transformers are available with 30, 50, 63, 80, 100, 125, 160, 200, 250, 315, 400, 500, 630, 800, 1000, 1250, 1600, 2000, 2500, 3150, 4000, 5000, 6300, 8000, 10000, 12500, 16000, 20000, 25000, 31500 kV high voltage and 10, 35 kV low voltage output, plus custom tap combinations.
Do you manufacture S20 Oil Immersed Transformers for export?
Yes. We are a oil immersed transformer manufacturer in China and export S20 series units worldwide with IEC/GB certification, OEM/ODM support and full factory pricing.
S20-2500/10/0.4 oil-immersed transformers
The oil immersed transformers produced by our company are suitable for power systems with an AC frequency of 50Hz and a rated working voltage of 35kV and below. They are used in various fields such as industry, agriculture, transportation, and urban communities, and are the main substation equipment in transmission and distribution networks. This series of products has the following technical characteristics: