S11 Series Oil-immersed Transformer
S11 Series Oil-immersed Transformer
Contact us for best pricing
Jinxing Power’s S11 series oil-immersed transformer is engineered for outdoor and general industrial applications. With over 30% lower no-load loss than S9 series, 2-4dB lower noise output, and 30+ years of service life, it’s the ideal choice for power grids, commercial & industrial parks, new energy stations, and residential areas.
All units pass 100% full inspection at our provincial-level testing center before delivery, ensuring product reliability and peace of mind.
Core Features:
- 30% lower no-load loss than S9 series
- 2-4dB lower noise output for quiet operation
- 30+ years service life with minimal maintenance
- 100% full inspection before delivery
- CE / ISO9001 / ISO14001 certified
S11 Series Oil-immersed Transformer
Contact us for best pricing
Jinxing Power’s S11 series oil-immersed transformer is engineered for outdoor and general industrial applications. With over 30% lower no-load loss than S9 series, 2-4dB lower noise output, and 30+ years of service life, it’s the ideal choice for power grids, commercial & industrial parks, new energy stations, and residential areas.
All units pass 100% full inspection at our provincial-level testing center before delivery, ensuring product reliability and peace of mind.
Core Features:
- 30% lower no-load loss than S9 series
- 2-4dB lower noise output for quiet operation
- 30+ years service life with minimal maintenance
- 100% full inspection before delivery
- CE / ISO9001 / ISO14001 certified
Reliable Power Distribution for Industrial Applications
The S11 series oil-immersed transformer is purpose-built to address the pain points of high operation costs and noise disturbance in conventional power grid distribution and industrial & commercial park power supply scenarios.
Its innovative core winding structure, low-loss silicon steel sheets, and optimized oil-cooling system deliver superior energy efficiency with minimal environmental impact.
High Efficiency
30% lower no-load loss, national level-1 energy efficiency compliant.
Low Noise
2-4dB(A) lower noise output, ideal for residential and urban deployment.
Certified Quality
CE / ISO9001 / ISO14001 certified, tested to IEC 60076 standards.
Global Support
Serving 30+ countries with 3-year warranty and lifetime maintenance.
S11 Series Oil-immersed Transformer
Application Scene: Power Distribution Substation
Compliant with national energy efficiency standards, the S11 series has been adopted by utilities and EPC contractors across 30+ countries, serving power grid projects, renewable energy stations, mining operations, and large-scale commercial deployments.
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Technical Specifications
| Parameter | S11 Series Specification |
|---|---|
| Rated Voltage | 10kV / 35kV |
| Rated Capacity | 10 – 2,500 kVA |
| Phase | Three Phase |
| Frequency | 50Hz / 60Hz |
| Vector Group | Dyn11 / Yyn0 (customizable) |
| No-load Loss | 30% lower than S9 series |
| Load Loss | Compliant with GB/T 6451-2015 Level 11 |
| Protection Grade | IP65 (standard) |
| Cooling Method | ONAN (Oil Natural Air Natural) |
| Insulation Class | A (105°C) |
| Noise Level | ≤55 dB |
| Service Life | 30+ years |
| Certifications | ISO9001, ISO14001, ISO45001, CE |
Product Gallery
Every detail reflects our commitment to precision engineering and superior quality.
From Order to Delivery — Our Process
A transparent 6-step workflow, backed by certified quality and 15+ years of manufacturing expertise.
28,000 m²
Factory Area
12,000+ Units
Annual Capacity
CE / ISO9001
Certified
1 Set MOQ
4–8 Weeks Delivery
Order Confirmation
Technical docs & delivery confirmed within 2 working days
Engineering
Drawings issued for your approval before production starts
Manufacturing
Core winding, assembly & oil filling per strict process
Quality Testing
24+ performance tests, all reports archived for traceability
Packaging & Loading
Seaworthy wooden cases, FOB/CIF/DDP all supported
Shipping
BL, CI, PI, CO provided — smooth customs clearance
Quality Tests Performed
Every unit, before shipment
Compliance Standards
IEC & GB certified quality
IEC 60076
Power Transformers
GB 1094
National Standard
CE Certified
EU Compliance
Frequently Asked Questions
Quick answers to the most common questions about our S11 oil-immersed transformer.
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