When choosing a three-phase transformer, it is important to consider the following factors:

Quality of the transformer: Choose a transformer from a reputable manufacturer with a proven track record of producing high-quality, reliable transformers.

Voltage requirements: Determine the voltage requirements for your application and ensure that the transformer you choose can meet those requirements.

Power requirements: Determine the power requirements for your application and ensure that the transformer you choose can handle the required power.

Efficiency: Look for a transformer with high efficiency to minimize power losses and reduce operating costs.

Size and weight: Consider the size and weight of the transformer, as well as the available space for installation.

Cooling requirements: Determine the cooling requirements for your application and ensure that the transformer you choose has the necessary cooling capabilities.

Noise level: Consider the noise level of the transformer and ensure that it meets any applicable noise regulations or standards.

Cost: Consider the cost of the transformer, including any additional installation and maintenance costs.

When considering the above factors, some reputable manufacturers to consider when choosing a three-phase transformer are ABB, Siemens, Schneider Electric, General Electric, and Eaton. It is important to consult with a qualified engineer or supplier to ensure that the transformer is properly selected and installed for your specific application.Visit the professional Three-phase Transformer Factory https://www.ilanderelectric.com/product/r-type-three-phase-transformer/r-type-three-phase-transformer.html to know more information.