Henan New Electric Power Co.,ltd.
| Type of cooling | ONAN oil is self-cooled |
| Delivery Time | 7-14 work days |
| Application | Substation |
| Payment Terms | L/C,D/A,D/P,T/T,Western Union |
| Rated Voltage | 11kV / 13.8kV / 24kV / 33kV / 34.5kV |
| Ambient Temperature | -25°C to +55°C |
| Phase | Three |
| Supply Ability | 5000pcs/year |
| Capacity/KVA | 25kVA–5000kVA / Up to 1250A |
| Rated frequency | 50Hz/60Hz |
| Short Circuit Withstand | 20kA–31.5kA (3s) |
| Standards | IEC 60076 / IEC 62271 / IEC 61439 |
| Protection Degree | IP54 / IP65 |
| Cooling / Insulation | ONAN / Air Insulated |
| Packaging Details | Export standard packaging |
| Customization | Voltage, Capacity, Current, IP Rating, Color, OEM Logo |
| Model Number | S11/S13/S20 |
| Certification | CE,UL,ISO |
| Place of Origin | Henan, China |
| Brand Name | TNNPI |
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Product Specification
| Type of cooling | ONAN oil is self-cooled | Delivery Time | 7-14 work days |
| Application | Substation | Payment Terms | L/C,D/A,D/P,T/T,Western Union |
| Rated Voltage | 11kV / 13.8kV / 24kV / 33kV / 34.5kV | Ambient Temperature | -25°C to +55°C |
| Phase | Three | Supply Ability | 5000pcs/year |
| Capacity/KVA | 25kVA–5000kVA / Up to 1250A | Rated frequency | 50Hz/60Hz |
| Short Circuit Withstand | 20kA–31.5kA (3s) | Standards | IEC 60076 / IEC 62271 / IEC 61439 |
| Protection Degree | IP54 / IP65 | Cooling / Insulation | ONAN / Air Insulated |
| Packaging Details | Export standard packaging | Customization | Voltage, Capacity, Current, IP Rating, Color, OEM Logo |
| Model Number | S11/S13/S20 | Certification | CE,UL,ISO |
| Place of Origin | Henan, China | Brand Name | TNNPI |
New Electric Power three winding oil immersed power transformer is designed for medium and high voltage power transmission systems, supporting 66kV/33kV/11kV voltage conversion for substations, mining plants, industrial facilities and grid electrification projects. It provides stable power distribution, high efficiency and long service life in harsh environments.
Adopts three winding structure to realize multiple voltage level conversion within one transformer, reducing equipment investment and improving substation efficiency. Suitable for 66kV, 33kV and 11kV power networks, mining power supply and regional grid expansion projects.
Uses high-quality mineral insulating oil and ONAN/ONAF cooling technology to provide excellent heat dissipation and reliable continuous operation. The sealed tank structure protects internal components from moisture, dust and extreme outdoor conditions in Africa markets.
Equipped with premium grain oriented silicon steel core and oxygen-free copper windings to reduce no-load loss, load loss and operating costs. Optimized electromagnetic design ensures stable voltage regulation and efficient power transmission.
Designed according to IEC 60076 standards, this transformer provides reliable performance for utility grids, mining plants, renewable energy connection, industrial parks and large-scale electrification projects.
| Item | Specification |
|---|---|
| Product Type | Three Winding Oil Immersed Power Transformer |
| Rated Voltage | 66kV / 33kV / 11kV |
| Capacity Range | 5MVA - 63MVA (Customized) |
| Cooling Type | ONAN / ONAF |
| Winding Material | Copper |
| Frequency | 50Hz / 60Hz |
| Insulation Class | Oil Immersed |
| Standard | IEC 60076 |
| Installation | Outdoor Substation |
| Tap Changer | Off Circuit Tap Changer / OLTC Optional |
| Application | Grid, Mining, Industrial Power Supply |
Company Details
Business Type:
Manufacturer,Distributor/Wholesaler,Seller,Exporter
Year Established:
2017
Total Annual:
>30000+
Employee Number:
260~300
Ecer Certification：
Verified Supplier
Henan New Electric Power Co., Ltd. is more than just a manufacturer; we are your strategic partner in building resilient and efficient power distribution networks. With a dual-core manufacturing capability in High/Medium Voltage Power Transformers and Advanced Switchgear Systems,... Henan New Electric Power Co., Ltd. is more than just a manufacturer; we are your strategic partner in building resilient and efficient power distribution networks. With a dual-core manufacturing capability in High/Medium Voltage Power Transformers and Advanced Switchgear Systems,...
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