2025-08-19
When purchasing all-copper transformers, prices vary significantly due to multiple factors, and a direct "factory price" cannot be provided. Below are the key factors influencing the price and a general price range reference. For specific inquiries, please contact our factory: Dayuan Power.
1. Power/Capacity (kVA): Price increases with capacity.
Example: 30kVA Dry-type ≈ $860 - $2,140; 1000kVA Dry-type ≈ $8,570 - $21,430+
2. Voltage Level:
Low Voltage (e.g., 400V): More common, moderate pricing.
Medium/High Voltage (e.g., 10kV, 35kV): Requires higher insulation, price increases significantly.
3. Type:
Dry-type Transformer: More eco-friendly (oil-free), better fire resistance, simpler maintenance, but typically 20%-50% more expensive than oil-immersed of the same capacity.
Oil-immersed Transformer: Better heat dissipation, lower cost, potentially larger capacities, but requires fire/explosion prevention measures.
4. Cooling Method:
Self-cooling (AN): Lowest cost.
Forced Air Cooling (AF): Suitable for heavy loads, slightly higher price.
5. Brand & Certification:
Well-known brands (e.g., TBEA, XD, Sunten, Jinpan) have a premium of ~10%-30%, but offer more stable quality.
Possession of ISO certification, National Standard (GB) certification, Energy Efficiency Class (e.g., Level 1) also affects price.
6. Custom Requirements:
Special enclosure protection (IP rating), temperature rise class (e.g., Class F/H), low-noise design, etc., add 5%-20% to the price.
7. Order Quantity: Bulk purchases usually receive discounts (5%-15%).
8. Transportation & Installation: Costs for large transformers can account for 10%-20% of the total cost.
| Capacity (kVA) | Dry-Type All-Copper | Oil-Immersed All-Copper | Remarks |
| 50 | $1,290 - $3,140 | $860 - $2,430 | Small equipment power supply |
| 200 | $2,860 - $6,430 | $2,140 - $6,430 | Small factories/buildings |
| 630 | $6,430 - $11,430 | $5,000 - $11,430 | Medium-sized projects |
| 1000 | $5,860 - $15,700 | $6,430 - $14,290 | Common for large industries |
| 1600 | $14,290 - $25,700 | $9,290 - $21,430 | Data centers/heavy industry |
> ⚠️ Note: The above are estimated ranges. Actual prices subject to manufacturer quotation. Prices for MV/HV or special designs will be higher.
1. Define Technical Parameters:
Capacity (kVA)
Input/Output Voltage (e.g., 10kV/400V)
Type (Dry-type/Oil-immersed)
Cooling Method
Protection Degree (e.g., IP20/IP23)
Energy Efficiency Class (e.g., Level 1/2)
2. Select Multiple Reputable Manufacturers:
Leading Domestic Brands: TBEA, XD Group, Sunten Electric, Jinpan Technology, Jiangsu Dayuan, etc.
Local Strong Manufacturers: Can save costs, but require strict qualification checks.
3. Provide Parameters for Quotation: Contact manufacturer sales directly with a detailed parameter list.
4. Request a Written Quotation: Specify material (all-copper winding), warranty period (typically 1-3 years), delivery time.
5. Compare Overall Costs: Consider warranty, after-sales service responsiveness; avoid choosing based solely on the lowest price.
Insist on All-Copper: Aluminum winding transformers have ~20%-30% lower initial cost but higher losses, shorter lifespan, and are less economical long-term.
Prioritize Energy Efficiency: Level 1 efficiency transformers cost 5%-10% more but recoup this cost through electricity savings within 1-3 years.
Sample Testing: For large orders, request samples for third-party testing of copper purity and manufacturing quality.
Factory Visit: Consider visiting the factory before bulk purchasing to inspect production processes and quality control.
