Transformer is a necessary instrument that is present in almost all electrical installations. Its main function is to change one alternative current (AC) voltage from one level to higher or lower level without using any moving part. It is found in almost all electrical devices that you usually use. In a small battery charger, transformer transforms the high voltage given by the electrical socket on your wall into low voltage that is consumable by the battery. If there is no transformer that does such transforming job, your battery will explode because of the excessive electrical power that it receives. The electrical power provided by the socket on your house wall has actually also been minimized by a large transformer outside your house. This large transformer transforms electric current voltage provided by the power plant into smaller electric current voltage that is used by every residence. If you want to manually make an electronic device, such as door bell and fluorescent lamp, you also need to use a small transformer to stabilize the power received by your device.

There are many components that are considered important for transformer to be able to work properly. Among those components, transformer mounting is the most important, especially for toroid transformer. There are many components that build up a transformer mounting, including base, enclosure, case, and brackets, metallic components whose material is made through custom sheet metal fabrication. The base and enclosure of a transformer is often made from plastic that is produced through injection moulding because this moulding method can generate a highly solid plastic component that is really powerful in isolating heat and therefore improving the transformer’s efficiency.

Injection moulding to produce plastic products has actually been carried out in many different places throughout the world. However, special for transformer, plastic products of injection moulding China are often used. If you observe a transformer thoroughly, you can easily find out that its plastic base and enclosure are made in China.