Transformer bushings classified by main insulation type

Transformer bushings classified by main insulation type

Capacitive bushing: Install a conductive or semiconductive layer inside the main insulation to achieve the required potential gradient. According to the main insulation capacitor core, it is divided into types such as adhesive paper, impregnated paper, oil immersed paper, and gas impregnated paper.

Non capacitive bushing: divided into liquid insulated bushing, gas insulated bushing, inorganic material bushing such as porcelain or glass, cast or molded resin bushing, and composite insulated bushing according to the main insulation medium.