What Are the Constructions of the Transformer in Medium Frequency Spot Welder?

A medium frequency spot welder is a kind of welding equipment that uses medium frequency current to weld metal workpieces. The transformer is one of the key components of the medium frequency spot welder, which plays an important role in voltage transformation, current adjustment, and energy output. In this article, we will discuss the constructions of the transformer in a medium frequency spot welder.

The transformer in a medium frequency spot welder usually consists of a primary coil, a secondary coil, and a magnetic core. The primary coil is connected to the input power supply, while the secondary coil is connected to the welding electrodes. The magnetic core is used to enhance the magnetic field and to reduce the loss of energy during the transformation process.
The primary coil is usually made of copper wire, which has good electrical conductivity and high temperature resistance. The size of the primary coil is determined by the input voltage and the required output power. The secondary coil is also made of copper wire, but the cross-sectional area and the number of turns are different from the primary coil. The secondary coil is designed to produce a high current and low voltage output, which is used to weld the workpieces.
The magnetic core is usually made of laminated silicon steel sheets, which have low magnetic hysteresis loss and low eddy current loss. The laminated structure can effectively reduce the loss of energy during the transformation process. The magnetic core is also designed to provide a closed magnetic circuit, which can enhance the magnetic field and improve the efficiency of the transformer.
In addition, the transformer in a medium frequency spot welder may also include a cooling system, which is used to dissipate the heat generated during the welding process. The cooling system usually consists of a water-cooled jacket and a cooling water system. The water-cooled jacket is installed around the transformer to absorb the heat, while the cooling water system is used to circulate the cooling water and maintain the temperature of the transformer.
In summary, the transformer is a key component of the medium frequency spot welder, which plays an important role in voltage transformation, current adjustment, and energy output. The constructions of the transformer include a primary coil, a secondary coil, a magnetic core, and a cooling system. Understanding the constructions of the transformer can help us to choose the right welding equipment and to operate it safely and efficiently.