When selecting the rated capacity of a transformer based on the power demand of an intermediate frequency furnace, the following factors need to be considered:

Power demand of medium frequency furnace: The power demand of a medium frequency furnace needs to be determined based on actual production requirements. Depending on different process parameters and production needs, the power demand of the medium frequency furnace may vary.

Efficiency of transformer: The efficiency of a transformer refers to the ratio of its output power to its input power within a specified time period. Choosing a transformer with high efficiency can reduce energy consumption and improve energy utilization.

Load factor of transformer: The load factor of a transformer refers to the ratio of its actual load power to its rated load power. Choosing an appropriate load factor for a transformer can prevent overload or underload, thereby enhancing the transformer’s service life and reliability.

Overload capacity of transformer: During the operation of an intermediate frequency induction furnace, some unexpected situations may arise, such as short circuits during metal melting. In such cases, the transformer must possess overload capacity to handle the unexpected situations.

Based on the above factors, the steps for selecting the rated capacity of a transformer are as follows:

Determine the power requirement for the medium frequency induction furnace and select it based on actual production needs.

Calculate the input power required by the transformer based on the power demand of the medium frequency furnace and the efficiency of the transformer.

Select an appropriate rated capacity for the transformer based on its load rate and overload capacity.

Taking into account some uncertain factors and unexpected situations, it is recommended to choose a transformer rated capacity that is slightly larger than the calculated result.

In summary, when selecting the rated capacity of a transformer based on the power demand of an intermediate frequency furnace, factors such as the actual power demand of the intermediate frequency furnace, transformer efficiency, load factor, and overload capacity need to be considered to ensure that the transformer can meet the power demand of the intermediate frequency furnace and maintain its safety and reliability.