Import 50kv Three Phase Oil-Immersed Transformer — Buy in wholesale FOB from Supplier in China
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The S11 series 50kV three phase oil-immersed transformer from Qingdao Hengfengyou Electric Engineering Co., Ltd. builds on the S9 series design with measurable performance gains. It achieves an average no-load loss reduction of 20 percent compared to S9 models, while no-load current drops by 70 to 85 percent. Temperature rise is lowered by 10K, extending service life to more than double that of S9 units, and noise levels decrease by 2 to 4 decibels under operation. These improvements are delivered without compromising structural familiarity, as high and low voltage windings, body assembly, fuel tank, and protection devices retain the S9 series configuration.
Material and construction details include a non-suspension structure, vacuum drying, vacuum oil filtering, and oil filling processes to ensure reliability. The unit features a corrugated oil tank design, eliminating the need for a separate oil storage cabinet. Typical for this class of transformer, the core is constructed from cold-rolled grain-oriented silicon steel, and windings use oxygen-free copper or high-conductivity aluminum. Insulation systems generally conform to standard temperature rise limits of 65K for windings and 75K for oil, ensuring stable performance under rated load.
This transformer is suited for power distribution in industrial, commercial, and utility applications where energy efficiency and long-term durability are critical. Buyers typically include electrical contractors, utility providers, and large-scale industrial facilities sourcing equipment for grid integration or internal power networks. Trade terms are confirmed directly with the supplier, with common Incoterms for such equipment including FOB Qingdao or CIF to major ports. Packaging is usually wooden crates or reinforced steel frames to protect against transit damage.
| Series Model | S11 |
| Voltage Rating | 50 kV |
| Phase Configuration | Three Phase |
| Cooling Type | Oil-immersed |
| No-load Loss Reduction vs S9 | 20% average |
| No-load Current Reduction vs S9 | 70-85% lower |
| Temperature Rise Reduction | 10K |
| Service Life | More than double S9 series |
| Noise Reduction | 2-4 dB |
| Core Material | Cold-rolled grain-oriented silicon steel (typical) |
| Winding Material | Oxygen-free copper or high-conductivity aluminum (typical) |
| Insulation Temperature Rise Limit (Windings) | 65K (standard) |
| Insulation Temperature Rise Limit (Oil) | 75K (standard) |
| Tank Design | Corrugated oil tank, no oil storage cabinet |
| Manufacturing Process | Vacuum drying, vacuum oil filtering, vacuum oil filling |
Qingdao Hengfengyou Electric Engineering Co., Ltd. is based in Chengyang District, Qingdao City, Shandong Province, China. The company operates from N0.506 Huicheng Road and holds a harbor trust tier, indicating a verified level of export readiness and logistical capability. Its profile confirms a focus on electrical engineering, with the S11 series transformer representing a key product line in its portfolio.
The supplier’s listing provides detailed technical improvements for the S11 series over the S9, but does not disclose production capacity, annual output, or certifications. Response metrics are currently unavailable, with a 0 percent response rate and no recorded average response time. Buyers are advised to confirm communication channels and technical support availability directly with the supplier before proceeding with inquiries or orders.
| 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 |
Sourcing 50kv Three Phase Oil-immersed Transformer from Qingdao Hengfengyou Electric Engineering Co., Ltd. - China Import Guide
Before ordering, verify the transformer’s compatibility with your electrical system by confirming the voltage rating, phase configuration, and frequency match your grid requirements. Request the supplier’s test reports for the S11 series, including no-load loss, load loss, and impedance voltage measurements, to ensure they align with your efficiency and performance expectations. Clarify whether the unit includes accessories such as bushings, tap changers, or protection devices, as these may vary by order.
Confirm logistics details such as packaging, which for this equipment typically involves wooden crates or reinforced steel frames to prevent damage during transit. Lead times for custom or high-voltage transformers can vary significantly, so request a realistic production and delivery schedule. Incoterms such as FOB Qingdao or CIF to your nearest port are common for such shipments, but agree on these in writing to avoid misunderstandings. Payment terms, often a percentage upfront with the balance before shipment, should also be negotiated and documented.
Quality checks should include a visual inspection for physical damage, oil leaks, or improper assembly upon receipt. Conduct or witness routine tests such as ratio and polarity verification, as well as insulation resistance measurements, to confirm the transformer’s condition. Request documentation such as the manufacturer’s test certificate, material certificates for the core and windings, and compliance with relevant standards like IEC 60076. For critical applications, consider third-party inspection or factory acceptance testing to validate performance before installation.
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30 suppliersBuy 50kv Three Phase Oil-Imme in Bulk — Verified Supplier in China
When sourcing 50kv Three Phase Oil-Immersed Transformer for your business, securing the right balance of quality and cost is essential. Qingdao Hengfengyou Electric Engineering Co., Ltd., a verified supplier based in China, offers this product for international export. By purchasing directly from the manufacturer or authorized exporter, buyers can negotiate favorable FOB prices starting at $850/Bags and manage bulk orders with a minimum order quantity (MOQ) of 1 Bags. This product is a staple in the Electric Transformers sector with strong demand from importing countries worldwide.
50kv Three Phase Oil-Imme Specifications, Trade Terms & Pricing
Importing 50kv Three Phase Oil-Imme requires careful attention to shipping logistics, customs compliance, and secure payment terms. Qingdao Hengfengyou Electric Engineering Co., Ltd. offers flexible shipping options such as Full Container Load (FCL) or Less than Container Load (LCL) via sea freight. Common payment methods for international B2B transactions include Letter of Credit (L/C), Telegraphic Transfer (T/T), and Documents against Payment (D/P). All transactions and RFQs are facilitated through EximNext, a leading online B2B marketplace designed to make cross-border trade secure and efficient.
About Qingdao Hengfengyou Electric Engineering Co., Ltd. — Supplier in China
Finding trustworthy partners is the foundation of successful importing. The supplier of this 50kv Three Phase Oil-Imme has been verified on our platform. Whether you are a distributor, wholesaler, or procurement manager, you can request a free quotation, ask for product samples, and finalize your bulk purchase with confidence. EximNext hosts thousands of verified manufacturers and exporters across 200+ countries. Explore similar products in the Electric Transformers category and connect with top-tier exporters on our comprehensive B2B marketplace. Start your sourcing journey today.
Import 50kv Three Phase Oil-Imme — Shipping, Logistics & Customs
Importing 50kv Three Phase Oil-Imme requires careful attention to shipping logistics, customs compliance, and secure payment terms. Common shipping options include Full Container Load (FCL) or Less than Container Load (LCL) via sea freight. Buyers should verify import duties in their destination country. Common payment methods include Letter of Credit (L/C), Telegraphic Transfer (T/T), and Documents against Payment (D/P).
Frequently Asked Questions About 50kv Three Phase Oil-Imme
What is the wholesale price of 50kv Three Phase Oil-Immersed Transformer?
The current listed wholesale price for 50kv Three Phase Oil-Immersed Transformer from Qingdao Hengfengyou Electric Engineering Co., Ltd. is $850/Bags on FOB terms from China. Prices may vary depending on order volume, packaging, and destination. For the most accurate bulk quote, send a direct RFQ to Qingdao Hengfengyou Electric Engineering Co., Ltd. through EximNext.
What is the Minimum Order Quantity (MOQ) for 50kv Three Phase Oil-Imme?
The supplier, Qingdao Hengfengyou Electric Engineering Co., Ltd., has set a Minimum Order Quantity (MOQ) of 1 Bags for 50kv Three Phase Oil-Imme. For sample requests or smaller trial orders, contact the supplier directly through our platform's inquiry system.
What is the HS Code for 50kv Three Phase Oil-Immersed Transformer?
The HS Code classification for 50kv Three Phase Oil-Immersed Transformer depends on the specific grade and form. Contact Qingdao Hengfengyou Electric Engineering Co., Ltd. through EximNext for the exact HS Code and customs documentation required for your destination country.
How can I import 50kv Three Phase Oil-Imme from China?
To import 50kv Three Phase Oil-Imme from China, negotiate shipping terms (FOB, CIF, or EXW) directly with Qingdao Hengfengyou Electric Engineering Co., Ltd.. Ensure you have the necessary import licenses for Electric Transformers products in your destination country.
Is Qingdao Hengfengyou Electric Engineering Co., Ltd. a verified supplier?
Yes, Qingdao Hengfengyou Electric Engineering Co., Ltd. is a verified supplier on EximNext. You can view their complete company profile, business registration details, certifications, and export history before placing a bulk order.
What are the key specifications of 50kv Three Phase Oil-Immersed Transformer?
For a complete technical data sheet or Certificate of Analysis (COA), send an inquiry directly to Qingdao Hengfengyou Electric Engineering Co., Ltd. through EximNext.
What packaging options are available for bulk orders of 50kv Three Phase Oil-Imme?
Qingdao Hengfengyou Electric Engineering Co., Ltd. offers 50kv Three Phase Oil-Imme with standard export packaging. Custom packaging, private labeling, and OEM/ODM options may also be available for large wholesale orders.
Which countries import 50kv Three Phase Oil-Imme the most?
50kv Three Phase Oil-Imme is actively imported by buyers worldwide. Request a destination-specific CIF or CFR quote from Qingdao Hengfengyou Electric Engineering Co., Ltd. through our platform.
What certifications does this 50kv Three Phase Oil-Imme supplier hold?
Qingdao Hengfengyou Electric Engineering Co., Ltd. maintains international quality certifications. These ensure that the 50kv Three Phase Oil-Imme meets international quality, safety, and regulatory standards required for cross-border trade.
How do I place a bulk order for 50kv Three Phase Oil-Immersed Transformer on EximNext?
Click "Request Quotation" on this product page, specify your required quantity, preferred shipping terms, and destination country. Qingdao Hengfengyou Electric Engineering Co., Ltd. will respond with a detailed wholesale quote including FOB pricing, lead time, and payment options.
What payment methods are accepted?
Common payment methods include Letter of Credit (L/C), Telegraphic Transfer (T/T), Documents against Payment (D/P), and Escrow services. Confirm accepted terms directly with Qingdao Hengfengyou Electric Engineering Co., Ltd..
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