2025-08-25
Providing a single, exact price for a pole-mounted distribution transformer in China is not possible due to the wide range of specifications, power ratings, and market fluctuations. However, I can give you a detailed breakdown of price ranges, factors affecting cost, and guidance on how to get an accurate quotation.For transformer parameters, you can directly contact Dayuan Power.
Prices are primarily driven by the kVA (kilovolt-ampere) rating. The following are approximate FOB (Free On Board) prices from Chinese manufacturers in USD, based on mid-2023 to early 2024 market conditions. These are for standard oil-immersed, single-phase or three-phase transformers.
Small Capacity (10 kVA - 50 kVA): $300 - $1,000
Commonly used for rural electrification, small shops, and residential blocks.
Medium Capacity (63 kVA - 200 kVA): $1,000 - $3,500
The most common range for village electrification, small industrial loads, and larger residential complexes.
Large Capacity (250 kVA - 500 kVA): $3,500 - $8,000+
Used for heavy industrial loads, large commercial buildings, and substation feeders.
1. Power Rating (kVA): This is the most significant factor. Higher kVA means more materials (copper, steel, oil) and a higher price.
2. Material Costs (Core & Windings):
Copper Windings: Transformers with copper windings are more expensive (often 20-40% more) but have better efficiency, lower losses, and longer lifespans. They are preferred for high-performance applications.
Aluminum Windings: These are the budget option. They are larger and less efficient but significantly cheaper upfront. The market price of aluminum and copper directly impacts the final product cost.
3. Energy Efficiency Class: China has its own energy efficiency standard (e.g., Class III, II, I), similar to international standards.
Standard Efficiency (e.g., Class III): Lower price.
High Efficiency (e.g., Class II or I): Higher price due to better core steel and more conductor material to reduce losses. This higher upfront cost is recouped through lower electricity bills over the transformer's life.
4. Brand and Manufacturer:
Tier 1 (International & Top Domestic): Companies like TBEA, China XD Group, ABB China, Siemens China. Higher prices, premium quality, strong R&D.
Tier 2 (Reputable Domestic Manufacturers): Hundreds of reliable factories, often certified to international standards. They offer the best balance of price and quality for most buyers. (e.g., companies in Baoding, Jiangsu, Zhejiang provinces).
Tier 3 (Small Local Workshops): Lowest prices, but quality control, material consistency, and after-sales service can be a significant risk.
5. Technical Specifications:
Voltage Rating (e.g., 11/0.4kV, 10/0.4kV): Standard ratings are cheapest.
Number of Phases: Single-phase transformers are generally cheaper than three-phase ones of the same kVA.
Tap Changer: Off-circuit tap changers are standard. On-load tap changers (OLTC) add significant cost and complexity.
6. Certifications:
Products with international certifications like ISO 9001, CE, IEEE, ANSI, or IEC standards typically cost more due to stricter quality control and testing processes.
7. Order Quantity & Shipping Terms:
A large bulk order will receive a much lower unit price than a single-unit sample order.
The price term (EXW, FOB, CIF) determines who pays for shipping and insurance, affecting your total landed cost.
To get a precise quote from Chinese manufacturers, you must provide them with a detailed Technical Specification Sheet. Here’s what you need to specify:
1. Rated Capacity: (e.g., 100 kVA)
2. Rated Voltage: (e.g., Primary: 11kV, Secondary: 0.4kV)
3. Number of Phases: (e.g., Three-Phase)
4. Frequency: (e.g., 50Hz or 60Hz)
5. Vector Group: (e.g., Dyn11)
6. Impedance Voltage: (e.g., Uk=4%)
7. Insulation Medium: (e.g., Oil-Immersed)
8. Efficiency Class: (e.g., China Class II)
9. Winding Material: (Copper or Aluminum)
10. Tap Changer: (Off-circuit, e.g., ±2 x 2.5%)
11. Standards: (e.g., GB, IEC, IEEE, etc.)
12. Quantity Required:
13. Destination Port:
