Ryan Oil Transformers
Ryan oil-immersed distribution and power transformers, 10-110 kV — genuine factory-built unit made available through our partnership network, with 24-hour response on stock and lead time for customers worldwide.
Genuine Ryan Oil Transformers from SENTRADO
These units are genuine Ryan products made available through our partnership network, supplied with FOB, CIF or DDP terms, type-test certificates and full export documentation. SENTRADO (Beijing Xinshentuo Technology Co., Ltd.) is an industrial automation and electrical-equipment export company with 25+ years of experience. Ryan transformers and switchgear are made available through our partnership network, with type-test and export documentation. We reply within 24 hours with a human response on stock and lead time — contact us for live stock & lead time.
Oil-immersed distribution and power transformers cover 10 kV distribution units up to 110 kV power transformers, with low-noise, low-no-load-loss designs for utility and industrial duty.
Supply assurance
Available through our partnership network
Ryan transformers and switchgear are made available through our partnership network as genuine factory-built units, with type-test certificates and full export documentation.
Engineered to your single-line diagram
Our engineers verify capacity, voltage class, vector group, cooling and protection rating against your specification before production release.
24-hour human response
We reply within 24 hours to confirm production slot and lead time — contact us for live stock & lead time before ordering.
Sources: official manufacturer product pages and technical documentation.
Technical specifications
Parameters below are taken from official Ryan product pages and technical catalogs.
| Product | Oil-immersed distribution and power transformers |
|---|---|
| Voltage classes | 10 / 20 / 35 / 66 / 110 kV |
| Capacity range | Distribution 10 kV to 5,000 kVA; power 35 kV to 100 MVA; 110 kV up to 180 MVA |
| 110 kV secondary voltage | 11 / 10.5 / 6.6 / 6.3 kV |
| Tap changer | +/-8x1.25% (OLTC or de-energized per design) |
| Vector group | YNd11 for 110 kV units; other groups per requirement |
| Cooling | ONAN / ONAF (KNAN/KNAF sealed designs) |
| Insulation fluid | Mineral oil; FR3 natural ester; silicone fluid |
| Partial discharge | Below 80 pC at 1.5xUn |
| Noise level | Below 58 dB for units up to 63 MVA |
| No-load loss | Up to 30% below IEC reference levels |
| Standards | IEC, ANSI/IEEE, CSA; GB |
| Certifications | UL, CE, ASTA |
Only parameters confirmed on official Ryan sources are listed. Contact our engineers for custom ratings, enclosures, accessories and type-test documentation.
Compatibility & supply
Three ways our team supports your Ryan Oil Transformers requirement: genuine article supply, engineering/configuration checks and complete-BOM handling.
Genuine factory equipment
Ryan transformer are made available through our partnership network as genuine factory-built units. Share your single-line diagram and our engineers verify the design before production release.
Selection & engineering support
Verify rated power (kVA/MVA), primary/secondary voltage, vector group, tap changer, cooling (ONAN/ONAF), impedance and sound level; mineral oil, FR3 natural ester or silicone fluid options available. Our engineers review your specification and confirm ratings, certificates and documentation.
Complete substation package
We can quote the complete package — transformers, switchgear, enclosures and accessories — in one shipment with export-grade packaging and type-test documents.
Typical applications
Oil-immersed distribution and power transformers cover 10 kV distribution units up to 110 kV power transformers, with low-noise, low-no-load-loss designs for utility and industrial duty.
- Utility and industrial MV/HV substations
- Power plants, mining and oil & gas facilities
- Renewable-energy collector substations
- Replacement and expansion of existing transformer fleets
- Export projects to ANSI/IEEE and IEC markets
Supply & delivery
Genuine & sourced right
Genuine Ryan equipment supplied through our partnership network, with type-test certificates and export documentation.
24-hour response
Every inquiry gets a human reply within 24 hours confirming stock and lead time. Formal quotations follow manufacturer inquiry.
Stock & lead time
Availability changes daily. Contact us for live stock & lead time — express air freight for line-down emergencies.
Global export
Worldwide shipping on FOB, CIF or DDP terms with export-grade packaging and full documents — Middle East, Southeast Asia, Africa and South America.
Frequently asked questions
Are these genuine Ryan transformers?
How fast do you respond, and what about lead time?
How do I confirm the right transformer specification?
What are these transformers typically used for?
What about warranty, MOQ and international shipping?
Related models we supply
More genuine articles we supply through authorized channels and our partnership network.
中国市场应用
作为西门子认证系统集成商，SENTRADO 深耕中国工业自动化市场，为国内制造业客户提供从选型到交付的全流程服务。
变压器、开关柜和储能系统在国内新能源和数据中心市场需求快速增长。睿恩系列产品通过 CCC 认证，支持国内电网标准和智能配电系统接入。
Need Ryan Oil Transformers fast?
Send us the article number and quantity — we reply within 24 hours with stock and lead-time confirmation. Contact us for live stock & lead time.