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Qingdao Hengfengyou Electric Engineering Co., Ltd. supplies three phase transformers rated from 10kVA to 2500kVA, designed for step-up and step-down voltage conversion in industrial, commercial, and utility applications. The transformer cores use imported cold-rolled silicon steel sheet, a material choice that reduces no-load losses and no-load current. Windings are wound from oxygen-free copper: low-voltage units up to 500kVA employ a double-layer cylinder structure, while 630kVA and above use double or four-helix configurations. The high-voltage side uses a multi-layer cylinder arrangement throughout the range.
These transformers use a Dyn11 connection group, which suppresses third-harmonic currents and helps maintain grid power quality. The fully sealed tank receives three coats of primer and one finish coat on all internal and external surfaces, providing resistance to salt fog, moisture, and fungal growth. Measured noise levels fall below the relevant national standard, and under normal operating conditions the units are maintenance-free. Buyers should confirm exact voltage ratios, cooling method (ONAN/ONAF), and insulation class with the supplier before ordering, as these details are not listed in the current specification sheet.
| Rated Power Range | 10 kVA to 2500 kVA |
| Phase Configuration | Three phase |
| Connection Group | Dyn11 |
| Core Material | Imported cold-rolled silicon steel sheet |
| Winding Material | Oxygen-free copper |
| Low-Voltage Winding (≤500 kVA) | Double-layer cylinder structure |
| Low-Voltage Winding (≥630 kVA) | Double helix or four helix structure |
| High-Voltage Winding | Multi-layer cylinder structure |
| Enclosure Finish | Fully sealed; 3 primer coats + 1 finish coat |
| Environmental Protection | Salt fog proof, moisture proof, fungus-proofing |
| Noise Performance | Below national standard (measured) |
| Maintenance | Maintenance-free under normal operation |
| Typical Cooling Method | ONAN / ONAF (confirm with supplier) |
| Typical Insulation Class | Class A or B, 105-130°C (confirm with supplier) |
| Typical Voltage Ratios | 11kV/0.4kV, 33kV/0.4kV, or custom (confirm with supplier) |
Qingdao Hengfengyou Electric Engineering Co., Ltd. is based at No. 506 Huicheng Road, Chengyang District, Qingdao City, Shandong Province, China. The company operates in the electrical engineering sector, manufacturing power transformers and related equipment. Its listed product range covers three phase transformers from 10kVA to 2500kVA, indicating in-house production capability across small, medium, and large power ratings.
Buyers sourcing from Qingdao Hengfengyou should note that response metrics are not yet established on this listing. Direct communication with the supplier is recommended to confirm current production capacity, lead times, packaging standards, and any applicable certifications. The supplier's location in Qingdao provides access to the city's port facilities, which can be relevant for export logistics.
| Business Type | Supplier |
| Year Established | Recently Joined |
| Employees | Contact Supplier |
| Annual Revenue | Contact Supplier |
| Main Products | View Products Tab |
| Major Markets | Global |
| Response Time | <4h |
| Response Rate | New Supplier |
When sourcing 10-2500kVA three phase transformers from China, buyers should verify that the supplier can provide test reports, type-test certificates, and compliance documentation relevant to their destination market. Qingdao Hengfengyou Electric Engineering Co., Ltd. is based in Qingdao, Shandong Province, a region with established electrical manufacturing infrastructure. Requesting factory audit reports or third-party inspection before shipment is a standard practice for power equipment procurement.
Transformer procurement often involves customisation of voltage ratios, tap changers, cooling arrangements, and enclosure ratings. Before finalising a purchase order with Qingdao Hengfengyou, confirm all technical specifications in writing, including insulation class, impedance voltage, and noise level guarantees. Ask the supplier about warranty terms and after-sales support, particularly for units above 630kVA where installation and commissioning complexity increases.
Import duties, local grid compliance requirements, and transport logistics vary by destination country. Buyers in Southeast Asia, Africa, and the Middle East frequently source transformers from Shandong Province manufacturers. Work with a freight forwarder experienced in heavy electrical equipment to arrange appropriate container or breakbulk shipping from Qingdao port.
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When sourcing 10-2500kva Three Phase 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 $5000/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.
Importing 10-2500kva Three Phase Tr 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 import export marketplace designed to make cross-border trade secure and efficient.
Finding trustworthy partners is the foundation of successful importing. The supplier of this 10-2500kva Three Phase Tr 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 online B2B marketplace. Start your sourcing journey today.
Importing 10-2500kva Three Phase Tr 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).
The current listed wholesale price for 10-2500kva Three Phase Transformer from Qingdao Hengfengyou Electric Engineering Co., Ltd. is $5000/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.
The supplier, Qingdao Hengfengyou Electric Engineering Co., Ltd., has set a Minimum Order Quantity (MOQ) of 1 Bags for 10-2500kva Three Phase Tr. For sample requests or smaller trial orders, contact the supplier directly through our platform's inquiry system.
The HS Code classification for 10-2500kva Three Phase 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.
To import 10-2500kva Three Phase Tr 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.
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.
For a complete technical data sheet or Certificate of Analysis (COA), send an inquiry directly to Qingdao Hengfengyou Electric Engineering Co., Ltd. through EximNext.
Qingdao Hengfengyou Electric Engineering Co., Ltd. offers 10-2500kva Three Phase Tr with standard export packaging. Custom packaging, private labeling, and OEM/ODM options may also be available for large wholesale orders.
10-2500kva Three Phase Tr is actively imported by buyers worldwide. Request a destination-specific CIF or CFR quote from Qingdao Hengfengyou Electric Engineering Co., Ltd. through our platform.
Qingdao Hengfengyou Electric Engineering Co., Ltd. maintains international quality certifications. These ensure that the 10-2500kva Three Phase Tr meets international quality, safety, and regulatory standards required for cross-border trade.
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.
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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