S11 Oil-Immersed Transformer - China Manufacturers

1. S: Three-phase; 11: Loss performance serial number; Oil-immersed refers to the transformer body being immersed in insulating oil, serving as insulation and heat dissipation. 2. Execution Standards: GB 1094 (Power Transformers), GB/T 6451 (Technical Parameters of Three-phase Oil-immersed Transformers), etc. 3. Structure and Features: Fully sealed corrugated oil tank, windings, low noise, short-circuit withstand. 4. Applications: Urban power grids, rural power grids, industrial parks, residential distribution; it is the main energy-saving transformer for 10kV distribution networks (altitude ≤1000m; ambient temperature -25℃~+40℃; locations without severe vibration, chemical corrosion, or explosion risks). 5. The S11 type is a mature and economical model; for routine projects, the S11 type offers outstanding cost-effectiveness. 6. Standardized design, special requirements can be customized. 7. Selection and procurement tips: (1) Clarify capacity, voltage ratio, connection group, voltage regulation range, impedance, and cooling method. (2) Verify the manufacturer's qualifications and type test report; check the losses and parameters according to GB/T 6451 to avoid non-standard products.

S11 Type Three-Phase Oil-Immersed Distribution Transformer

When you need dependable power distribution for industrial facilities or community networks, the S11 type three-phase oil-immersed distribution transformer from Lijie Electric delivers proven performance. Our advanced units feature fully sealed corrugated oil tank design that extends service life by preventing moisture ingress and oxidation. With capacity ranging from 30-3150kVA and 6-12kV voltage levels, these transformers achieve exceptional energy efficiency across diverse applications. Backed by Lijie's 500,000㎡ manufacturing facilities and annual sales exceeding 5 billion RMB, you get enterprise-grade reliability with competitive cost-effectiveness.

S11 type three-phase oil-immersed distribution transformer

What Makes Our Oil-Immersed Transformers Different?

Advanced Sealing Technology

The completely fixed folded tank structure keeps transformer oil disconnected from surrounding discuss. This anticipates dampness assimilation that compromises cover quality. Your hardware keeps up ideal execution indeed in challenging natural conditions.

Superior Warm Dissipation

Oil-immersed cooling conveys steady warm administration. The protection oil serves double purposes—electrical separator and effective warm exchange. This amplifies component life expectancy altogether compared to air-cooled alternatives.

Proven Misfortune Reduction

The S11 arrangement speaks to develop innovation optimized for vitality investment funds. Lower center misfortunes and diminished copper misfortunes interpret straightforwardly to your operational taken a toll reserve funds over a long time of ceaseless benefit.

Technical Specifications

Parameter	Specification
Voltage Level	6kV, 12kV
Capacity Range	30-3150kVA
Frequency	50Hz, 60Hz
Phases	Single-phase, Three-phase
Voltage Regulation	Non-excitation ±5%, ±2×2.5%
Connection Group	Yyn0 or Dyn11
Cooling Method	Oil-immersed self-cooling (ONAN)
Impedance Voltage	Per GB/T 6451 standards
Insulation Level	Power frequency 35kV AC / Impulse 75kV
Operating Temperature	-25°C to +40°C
Altitude	≤1000m

S11 type three-phase oil-immersed distribution transformer

Where You Can Deploy These Transformers

Industrial Applications: Metallurgy plants, chemical facilities, and manufacturing complexes requiring stable 10kV power distribution benefit from robust short-circuit withstand capability.

Infrastructure Projects: Rail transit systems, tunnels, and pumping stations depend on reliable three-phase oil-immersed distribution transformers for uninterrupted operations.

Urban and Rural Networks: Power companies select these units for grid expansion projects. The combination of low noise operation and compact design suits residential areas perfectly.

Commercial Developments: Shopping centers, office parks, and mixed-use developments need transformers that balance performance with cost-effectiveness—exactly what the S11 type three-phase oil-immersed distribution transformer provides.

Why Choose Lijie Electric?

Manufacturing Excellence

Our two generation bases in Xuzhou and Nantong utilize over 2,000 talented experts. More than 160 hold progressed building degrees, guaranteeing your transformer meets demanding quality standards.

Certified Quality

Every unit passes thorough testing at National Transformer Quality Supervision and Assessment Center. We hold ISO 9001:2015, CE, UL, and IEC certifications—giving you certainty in item reliability.

Flexible Customization

Standard plans dispatch rapidly, but we moreover suit uncommon prerequisites. Whether you require particular voltage proportions or one of a kind association arrangements, our designing group conveys custom-made solutions.

Global Service Network

We've provided transformers over Asia, Africa, and Oceania. Total specialized documentation, establishment direction, and responsive after-sales back come standard with each order.

Smart Procurement Tips

Define Your Necessities Clearly: Calculate your correct capacity needs, voltage proportion, and association gather some time recently asking cites. This guarantees you get precise specifications.

Verify Producer Accreditations: Check for substantial sort test reports and GB/T 6451 compliance documentation. Maintain a strategic distance from providers advertising non-standard items at suspiciously moo prices.

Consider Add up to Fetched of Possession: Whereas the item offers competitive forthright estimating, figure in vitality proficiency appraisals that diminish working costs over 20+ a long time of benefit.

S11 type three-phase oil-immersed distribution transformer

Frequently Asked Questions

How long does production take?

Standard configurations typically ship within 6-15 days. Custom specifications may require 20-30 days depending on complexity.

What maintenance does oil-immersed equipment require?

The sealed design minimizes maintenance. Annual visual inspections and periodic oil testing every 3-5 years ensure optimal performance.

Can you handle voltage levels beyond 12kV?

Yes. Lijie manufactures transformers up to 500kV for ultra-high-voltage applications. Contact us to discuss higher voltage requirements.

Do you provide installation support?

Absolutely. We supply complete installation drawings, operation manuals, and test reports. Technical guidance is available throughout commissioning.

What warranty coverage do you offer?

Standard warranty covers manufacturing defects for 24 months from commissioning date. Extended service agreements are available.

Ready to Upgrade Your Power Distribution?

Contact our transformer specialists today to discuss your project requirements for S11 type three-phase oil-immersed distribution transformer. Email lijieelectrical@gmail.com for detailed specifications and competitive quotations.