Different designs and types of transformer bushings
An insulating device called a transformer bushing makes it easier for an energised conductor to pass through the grounded tank of the transformer. For the transformer to be connected to the electrical system, bushings are necessary, and they must be able to withstand the high voltages and currents inherent in a transformer. Types of transformer bushings Transformer bushings come in a wide variety of designs, each with unique benefits and drawbacks. The transformer bushings that are most frequently used include: Porcelain bushings: One of the most traditional and popular types of transformer bushings is porcelain. They are composed of premium porcelain that is impervious to moisture and high voltages. Despite being very cheap, porcelain bushings can be fragile and easily broken. Oil-filled bushings: Oil is used as an insulating material in oil-filled bushings. Compared to porcelain bushings, they are therefore more resistant to moisture and other external variables. Additionally more ...