F. T Cable Co., Ltd.
| Phase | Three |
| Type | Oil-Immersed Transformer |
| Payment Terms | Western Union,T/T,D/P,D/A,L/C |
| Operating Environment | Outdoor |
| Voltage Regulation Method | On-load tap changer, Off-load tap changer |
| Supply Ability | 800–1500 Piece /per month |
| Delivery Time | 30 days |
| Capacity Range | 630-180000KVA |
| Application | Power Transformer |
| Packaging Details | Wooden Drum、cardboard box、wooden pallet |
| Frequency | 50 Hz, 60 Hz |
| Model Number | s(sz)13;s(sz)18;;s(sz)20;s(sz)22 |
| Certification | CE，VDE,SO 9001 |
| Place of Origin | china |
| Brand Name | F.T |
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Product Specification
| Phase | Three | Type | Oil-Immersed Transformer |
| Payment Terms | Western Union,T/T,D/P,D/A,L/C | Operating Environment | Outdoor |
| Voltage Regulation Method | On-load tap changer, Off-load tap changer | Supply Ability | 800–1500 Piece /per month |
| Delivery Time | 30 days | Capacity Range | 630-180000KVA |
| Application | Power Transformer | Packaging Details | Wooden Drum、cardboard box、wooden pallet |
| Frequency | 50 Hz, 60 Hz | Model Number | s(sz)13;s(sz)18;;s(sz)20;s(sz)22 |
| Certification | CE，VDE,SO 9001 | Place of Origin | china |
| Brand Name | F.T | ||
| High Light | 35KV oil immersed power transformer ，Three Phase oil immersed power transformer ，Outdoor oil immersed transformer | ||
35KV Oil-immersed Power Transformer High Efficiency Factory Direct Price
The 35kV Oil-Immersed Power Transformer is engineered for medium- and high-voltage power transmission and distribution systems where operational reliability, energy efficiency, and long service life are essential. Designed with a high-performance magnetic core, precision-wound conductors, and a sealed mineral oil insulation system, this transformer provides stable voltage conversion while minimizing no-load and load losses.
Suitable for utility substations, industrial plants, renewable energy projects, mining operations, airports, and urban infrastructure, the transformer is built to operate continuously under demanding electrical and environmental conditions. Every unit is manufactured under a strict quality management system and tested before shipment to ensure dependable performance throughout its service life.
As a professional transformer manufacturer, we provide comprehensive OEM and ODM customization, enabling customers to configure voltage ratings, capacity, cooling systems, winding materials, monitoring accessories, and other project-specific requirements.
| Parameter | Specification |
| Product Name | Three-Phase Oil-Immersed Power Transformer |
| Voltage Class | 35kV |
| Rated Capacity | 315kVA–31500kVA (Custom Available) |
| Rated Frequency | 50Hz / 60Hz |
| Phase | Three Phase |
| Cooling Method | ONAN / ONAF (Optional) |
| Insulation Medium | Mineral Transformer Oil |
| Winding Material | Oxygen-Free Copper / Aluminum |
| Core Material | Cold-Rolled Grain-Oriented Silicon Steel |
| Vector Group | Dyn11, YNd11, Yyn0, Customized |
| Tap Changer | Off-Circuit / On-Load Tap Changer (Optional) |
| Installation Type | Outdoor / Indoor Substation |
| Protection Accessories | Buchholz Relay, Pressure Relief Valve, Oil Level Gauge, Thermometer (Optional) |
| Standards | IEC 60076, ANSI/IEEE, GB/T 6451 |
The transformer is built around an integrated magnetic and insulation system that ensures efficient energy conversion and reliable long-term operation. The laminated silicon steel core minimizes magnetic losses, while precision-wound high-voltage and low-voltage coils provide stable electrical performance. These windings are completely immersed in insulating oil, which dissipates heat and enhances dielectric strength. A welded steel oil tank houses the active components and is equipped with radiators for efficient cooling. Depending on project requirements, additional accessories such as Buchholz relays, oil level indicators, pressure relief devices, temperature gauges, cooling fans, and on-load tap changers can be installed to improve operational safety and simplify maintenance.
The 35kV oil-immersed power transformer is widely deployed in medium- and high-voltage distribution systems where reliable power conversion is critical. In utility substations, it supports regional transmission and distribution networks by ensuring stable voltage transformation and continuous power delivery. Industrial facilities such as steel mills, mining operations, petrochemical plants, cement factories, and manufacturing complexes rely on its robust performance to supply large electrical loads.
The transformer is also extensively used in renewable energy projects, including photovoltaic power stations, wind farms, and battery energy storage systems, where efficient integration with the electrical grid is essential. In commercial and public infrastructure, it provides dependable power for airports, railway stations, hospitals, large shopping centers, data centers, ports, water treatment facilities, and municipal engineering projects that demand uninterrupted electrical service.
With years of experience in transformer manufacturing, our factory combines advanced production equipment with strict quality management to deliver products that meet international performance standards. Automated core cutting, CNC winding machines, vacuum oil filling systems, and precision testing equipment ensure consistent manufacturing quality from raw materials to finished products.
Our engineering team supports complete OEM and ODM projects, providing customized electrical designs, technical consultation, multilingual documentation, private labeling, and export-ready packaging. Every transformer is carefully inspected before shipment, enabling customers to receive reliable products with stable performance and long operational life.
We manufacture standard capacities from 315kVA to 31.5MVA. Larger capacities and customized designs are also available based on project requirements and local utility standards.
Yes. Primary voltage, secondary voltage, frequency, vector group, impedance, tap changer configuration, cooling method, and accessories can all be customized to comply with IEC, ANSI, IEEE, GB, or other applicable standards.
Standard models use ONAN (Oil Natural Air Natural) cooling. For higher-capacity transformers, ONAF (Oil Natural Air Forced) cooling with fan-assisted heat dissipation is available to improve load capability.
Yes. The transformer features a durable weather-resistant steel tank with anti-corrosion coating, making it suitable for outdoor substations, industrial facilities, renewable energy projects, and utility distribution networks.
Each transformer undergoes a complete series of routine tests, including winding resistance measurement, transformation ratio verification, insulation resistance testing, dielectric withstand testing, no-load and load loss measurement, oil dielectric strength analysis, leak testing, and final quality inspection to ensure compliance with customer specifications.
Phone
+86 13892838980
Company Details
Business Type:
Manufacturer
Year Established:
2024
Total Annual:
15Million-60Million
Employee Number:
200~250
Ecer Certification：
Verified Supplier
F.T Cable Co., Ltd. is a professional cable manufacturing factory specializing in overseas export markets, integrating cable R&D and design, large-scale production, personalized customization, and export trade. Rooted in China's power cable industry cluster, the company focuses on serving the gl... F.T Cable Co., Ltd. is a professional cable manufacturing factory specializing in overseas export markets, integrating cable R&D and design, large-scale production, personalized customization, and export trade. Rooted in China's power cable industry cluster, the company focuses on serving the gl...
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