1500 kva transformer
Regarding the price, type, and selection guide of a **1500 kVA transformer**, the following is a comprehensive analysis:
I. Price Range
The prices of 1500 kVA transformers vary significantly due to factors such as **type, brand, voltage level, and configuration**.
The common price ranges are as follows:
1. Dry-Type Transformers
- **Domestic/Chinese Manufacturers**:
- Three-phase isolation transformers (e.g., 480V to 208Y/120V): **$1,000 – $8,000** (Reference price on Alibaba).
- Special export models (e.g., 415V to 380V): **Approximately $6,500 – $10,000** (For example, the ZFSO-1500KVA of Wankong
Power is quoted at 46,900 Chinese yuan, approximately $6,500).
- **International Brands (such as Eaton, Square D)**:
- The price is usually **$10,000 – $25,000**, including IEEE/CSA certification.
2. Oil-Immersed Transformers
- **Domestic/Conventional Models**:
- Outdoor distribution transformers (e.g., 11kV to 400V): **$3,000 – $15,000**.
- **High-End Models (such as Pad-Mounted Transformers)**:
- With intelligent monitoring function: **$15,000 – $30,000**.
II. Core Types and Characteristics
1500 kVA transformers are mainly divided into two categories, suitable for different application scenarios:
1. Dry-Type Transformers
- **Advantages**: Fireproof and explosion-proof, maintenance-free, suitable for indoor/commercial places.
- **Applications**: Industrial plants, data centers, hospitals, high-rise buildings.
- **Examples**:
- Shanghai Kaiqi SG-1500KVA (Full copper winding, 480V to 208Y/120V).
- Eaton 1500 kVA dry-type transformer (Compliant with IEEE standards).
2. Oil-Immersed Transformers
- **Advantages**: Low cost, good heat dissipation, suitable for outdoor/high-load scenarios.
- **Applications**: Power distribution systems, industrial parks, municipal engineering.
- **Examples**:
- Domestic S11 series 1500 kVA oil-immersed transformer (10kV to 400V).
- International brand Pad-Mounted transformer (13.8kV to 480V, with a protective casing).
III. Key Selection Factors
1. **Load Calculation**
- Formula: `Transformer capacity (kVA) = Total power (kW) / (Load rate × Power factor)`
- Example: For a 1500kW load (Load rate 0.85, Power factor 0.9), **1960 kVA** is required, and a **2000 kVA transformer** can be selected.
2. **Voltage Level**
- The input/output voltage needs to be matched (e.g., commonly used in the US is 480V delta to 208Y/120V, and in Europe is 415V to 380V).
3. **Certification Standards**
- In the US: IEEE/ANSI/UL; Internationally: IEC/CSA.
4. **Additional Functions**
- Functions such as intelligent monitoring, on-load tap changer (OLTC), protection class (IP54/IP66), etc., will affect the price.
IV. Typical Cases
| Scenario | Recommended Model | Price | Characteristics |
| US industrial plant (480V to 208Y/120V) | Westinghouse oil-immersed transformer | $12,000 – $15,000 | Compliant with IEEE standards, outdoor installation |
| Chinese export equipment (415V to 380V) | Zhuo'erfan ZFSO-1500KVA dry-type | $6,500 | Full copper winding, IP20 protection |
| European distribution system (10kV to 400V) | Domestic S13 oil-immersed transformer | $5,000 – $8,000 | Low loss, 10% energy saving |
V. Summary
- **Budget Suggestions**:
- Domestic dry-type: **$1,000 – $10,000**; International brand dry-type: **$10,000 – $25,000**.
- Oil-immersed: **$3,000 – $30,000** (Subject to configuration).
- **Priority Considerations**: Voltage matching, load rate, certification standards, and after-sales service.
- **Purchase Channels**: Wankong electrical, local power equipment suppliers (installation services).
Please note that in the original text, "wankong electrical" may be a misspelling or an incorrect name. You can double-check
and correct it according to the actual situation.
