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High Efficiency Low Loss Transformer

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S20 High Efficiency Oil Distribution Transformer

S20 High Efficiency Transformer is a new generation second class energy saving low loss distribution transformer upgraded from S13 and S15 series. It adopts high grade grain oriented silicon steel and optimized stacking structure,with lower no load loss and load loss than traditional models. Featuring stable performance wide adaptability and high cost performance it is the most mainstream upgrade model for urban rural grid renovation industrial and commercial power distribution projects worldwide.

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Basic Info.

S20 High Efficiency Transformer is a standard upgraded low loss oil immersed distribution transformer widely used in global power grid systems. Adopting high permeability HiB grain oriented silicon steel sheet and optimized electromagnetic structure design,it effectively reduces core loss and winding loss while maintaining excellent mechanical stability and heat dissipation performance. Compared with S11 and S13 series the S20 series achieves comprehensive energy efficiency improvement with more stable operation and lower operating costs.

Typical Applications

Urban and rural power grid renovation and capacity expansion projects
Industrial parks factories manufacturing and processing enterprises
Commercial plazas office buildings schools and hospital power distribution
Medium and small scale distributed photovoltaic power distribution systems
Residential community power supply and box type substation supporting
Municipal infrastructure transportation and public facility power supply

Performance parameters for reference

Core Material	High Grade HiB Grain Oriented Silicon Steel
Structure	Optimized Stacked Core Structure
Rated Capacity	30kVA ~ 2500kVA or customized
Rated Voltage	6kv,10kv,11kv,20kv,35kv or customized
Frequency	50Hz / 60Hz
Execution Standard	IEC 60076,IEEE

Quality Assurance: Certifications, Testing, & Global Shipments

We strictly adhere to international manufacturing standards to guarantee that every unit delivered to your site meets precise performance thresholds.

International Certifications:

Our facility and products operate under ISO9001 Quality Management, ISO14001 Environmental Management, CE, and international IEEE/IEC standards.

100% Factory Routine & Type Testing:

Every unit undergoes rigorous routine testing before dispatch, including Partial Discharge (PD) measurement (≤5pC), Induced Overvoltage Withstand Test, Temperature Rise Testing, and Insulation Resistance verification.

Dispatch & Packaging Integrity:

Enclosures feature heavy-duty anti-corrosion outdoor coatings and oil-level protection locks, anchored inside reinforced shipping frames for ocean transit.

Why Choose Us

Our S20 High Efficiency Transformer provides reliable standard grade energy saving power solutions with balanced performance and competitive cost for global grid and industrial projects.

Upgraded Energy Saving Performance:

Adopts premium HiB silicon steel material and optimized electromagnetic design. Both no load loss and load loss are greatly reduced compared with traditional S13 transformers effectively lowering long term grid operation power consumption.

Superior Stable Performance:

Precise core stacking and winding technology ensure uniform magnetic field stable voltage output low vibration and low temperature rise. Strong overload capacity guarantees long term safe continuous operation.

High Cost Effective Solution:

Compared with ultra high end amorphous core and 3D wound core models S20 achieves excellent energy efficiency at moderate cost ideal for large scale grid renewal and budget friendly industrial projects.

Wide Scene Adaptability:

Suitable for various working conditions including urban grid rural power network industrial workshops commercial buildings and medium and small solar distribution systems with strong environmental adaptability.

Strict Standard Manufacturing:

All units are manufactured in accordance with IEC international standards with full routine testing before delivery stable quality low failure rate and low maintenance cost.

Mature Customization Support:

Support custom voltage level capacity vector group and outdoor anti corrosion treatment to meet different country regional grid standards.

FAQ

Q1 What is S20 transformer and what is its positioning?

A1 S20 is a new generation upgraded low loss high efficiency oil immersed transformer. Its energy efficiency is higher than S13 and S15 series with excellent cost performance.It is the mainstream model for global grid energy saving renovation.

Q2 What is the difference between S20 and 3D wound core transformer?

A2 S20 adopts conventional stacked silicon steel structure focusing on general energy saving and cost effectiveness.3D wound core focuses on ultra low noise and balanced three phase performance.S20 is more suitable for large scale conventional grid projects.

Q3 What is the difference between S20 and amorphous core transformer?

A3 Amorphous core has ultra low no load loss for 24 hour light load solar scenarios.S20 has moderate energy loss and lower price more suitable for general industrial and municipal grid projects with balanced load rate.

Q4 What are the main application scenarios of S20 transformer?

A4 Widely used for urban and rural grid renovation industrial parks commercial buildings schools hospitals and conventional distributed photovoltaic power distribution systems.

Q5 Is S20 transformer suitable for long term continuous operation?

A5 Yes.With optimized heating structure and stable electromagnetic performance it can work continuously for a long time with low failure rate and low maintenance cost.

Q6 Can you customize S20 transformer for different country standards?

A6 Yes.We support customized capacity voltage ratio frequency installation structure and surface treatment to adapt Middle East Southeast Asia African and European market requirements.

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