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Construction & real estate›💡Electronic & Electrical›🍎Food & Beverages›🛋️Home furnishing & supplies›⚗️Industrial goods & chemical›🪨Minerals & metals›📦Miscellaneous›
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Construction & real estate›💡Electronic & Electrical›🍎Food & Beverages›🛋️Home furnishing & supplies›⚗️Industrial goods & chemical›🪨Minerals & metals›📦Miscellaneous›The S13 fully-sealed oil-immersed power transformer from Qingdao Hengfengyou Electric Engineering Co., Ltd. is designed for primary and secondary voltage ratings of 6.6kV, 11kV, 33kV to 0.4kV. It uses a fully oil-filled sealed structure with a corrugated sheet box, eliminating the need for an oil conservator. The transformer’s volume adjusts to temperature and load changes via the corrugated oil tank, ensuring stability and reducing maintenance needs.
Core construction employs 30P series high-permeability oriented silicon steel sheets with a thickness of 0.27-0.30 mm and a unit iron loss of 1 W/kg, compared to standard S9 types using 0.30-0.35 mm sheets with 1.20-1.55 W/kg losses. Foil-wound coils and new insulating materials enhance resistance to high temperatures and impacts. The integral fuel tank, featuring a corrugated fin radiator, undergoes phosphating and multi-layer anti-rust spraying for durability and weather resistance.
These transformers are suited for power distribution networks where energy efficiency and reliability are critical. Buyers typically include utilities, industrial plants, and infrastructure projects requiring stable voltage transformation. The S13 model’s lower no-load loss and strong short-circuit resistance make it a preferred choice for modern distribution systems.
| Type | S13 fully-sealed oil-immersed power transformer |
| Primary Voltage | 6.6kV, 11kV, 33kV |
| Secondary Voltage | 0.4kV |
| Core Material | 30P series high-permeability oriented silicon steel |
| Core Thickness | 0.27-0.30 mm |
| Unit Iron Loss | 1 W/kg |
| Coil Type | Foil-wound |
| Structure | Fully oil-filled sealed, corrugated sheet box |
| Oil Tank Type | Corrugated fin radiator with phosphating and anti-rust coating |
| No-Load Loss | Lower than S9 series (typical) |
| Short-Circuit Resistance | High (standard for S13 transformers) |
Qingdao Hengfengyou Electric Engineering Co., Ltd. is located at No. 506 Huicheng Road, Chengyang District, Qingdao City, Shandong Province, China. The company specialises in the production of energy-efficient power transformers, with a focus on S13 series models that meet modern distribution demands. Its address places it in a key industrial hub for electrical engineering in northern China.
The supplier’s profile indicates a harbor trust tier, though no response rate or average response time data is currently available. The company’s product descriptions emphasize technical details such as material specifications, construction methods, and performance benefits, reflecting a focus on engineering precision. No additional claims about certifications, client base, or production scale are provided.
| 企业类型 | Supplier |
| 成立年份 | Contact Supplier |
| Employees | Contact Supplier |
| Annual Revenue | Contact Supplier |
| Main Products | View Products Tab |
| Major Markets | Global |
| 响应时间 | <4h |
| 响应率 | Contact Supplier |
Before ordering, verify the transformer’s voltage ratings, core material specifications, and coil type to ensure compatibility with your power distribution system. Request test reports or certifications to confirm compliance with industry standards for energy efficiency and safety.
Confirm logistics details such as lead time, packaging, and incoterms with Qingdao Hengfengyou Electric Engineering Co., Ltd. The transformer’s sealed design may require special handling during transport. Standard incoterms for such equipment often include FOB Qingdao or CIF to major ports.
Conduct quality checks on the core material, coil construction, and oil tank integrity upon receipt. Inspect the phosphating and anti-rust coatings for uniformity. Request documentation such as material test certificates and performance reports to validate the transformer’s specifications.
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