5kva transformer 480v to 120v
The relevant information about a 5kVA transformer (480V to 120V) is as follows for your reference:
*1. Basic Parameters**
- Capacity: 5kVA (Apparent Power)
- Input Voltage: 480V (It needs to be confirmed whether it is three-phase or single-phase)
- Output Voltage: 120V (Usually single-phase)
- Transformation Ratio: 4:1 (480V → 120V)
*2. Common Types**
- **Single-phase Transformer**: Suitable for single-phase loads (such as lighting, small equipment)
- **Three-phase Transformer**: Suitable for three-phase loads (such as motors, industrial equipment), and step-down may be required through the star-delta connection method.
*3. Selection Precautions**
- **Load Characteristics**: For inductive loads (such as motors), the power factor needs to be considered, and the actual available power may be lower than 5kW.
- **Efficiency**: The typical efficiency is about 95%. When it is under full load, attention should be paid to heat dissipation due to heating.
- **Protection Level**: For indoor use, IP20 is recommended, and for outdoor use, it should be above IP54.
*4. Common Domestic Brands and Prices**
- Chint, Delixi: Approximately 3000-5000 yuan
- Schneider, ABB: Approximately 6000-10000 yuan
- Customized type (special voltage/size): It may exceed 10,000 yuan
*5. Installation Suggestions**
- It needs to be fixed in a well-ventilated position.
- It is recommended to configure a 63A circuit breaker on the primary side.
- It is recommended to configure a 25A circuit breaker on the secondary side.
- For three-phase transformers, attention should be paid to the connection of the phase sequence.
*6. Application Scenarios**
- Power supply for industrial equipment (such as CNC machine tools)
- Voltage adaptation for imported equipment
- Power conversion in laboratories
- Power supply for ships/special vehicles
*Reminder**: Please confirm the specific requirements (single-phase/three-phase, whether the isolation function is required, protection level, etc.) before purchasing. It is recommended to choose products that have passed the CCC certification. If a customized solution is required, you can contact the transformer manufacturer to provide detailed parameters.
