What is bushings in transformer?

Bushings are the components of a transformer that provide electrical insulation and a means of connecting the transformer to an external electrical circuit. They are typically constructed from high-strength porcelain or polymer material and are designed to withstand high electrical and mechanical stresses.

The primary function of bushings is to provide a barrier between the transformer's internal components and the external electrical circuit. This helps to prevent electrical arcing, which can cause damage to the transformer and the surrounding equipment.

In addition to insulation, bushings also provide a means of connecting the transformer to the external circuit. This allows electrical power to be transferred between the transformer and other electrical systems, such as power grids or distribution lines.

Bushings are designed to meet specific electrical and mechanical requirements, depending on the size and application of the transformer. They may be designed to withstand high voltage levels, extreme temperatures, or harsh environmental conditions.

Regular maintenance and testing of transformer bushings is essential to ensure their proper function and to prevent electrical failures or malfunctions. This typically involves visual inspection, electrical testing, and cleaning or replacement as needed.