transformer sheath

The transformer sheath (also known as transformer insulation cover, output bushing) is a key component for connecting the high and low voltage winding leads of transformers to external circuits. Its core function is to achieve "conductive connection" while isolating live conductors from the grounded transformer casing (or oil tank), preventing accidents such as leakage and short circuits, and protecting the leads from external environmental erosion.

Its functions can be decomposed into four core dimensions: insulation isolation, mechanical support, environmental protection, and electric field optimization.

The transformer sheath is the "bridge" that connects the "internal winding" of the transformer with the "external power grid". Its core value is to ensure the safety, reliability, and durability of the connection between the transformer and the external circuit through insulation isolation, mechanical support, environmental protection, and electric field optimization while achieving conductive function. If the sheath fails (such as insulation breakdown, seal damage), it may directly cause the transformer to trip, burn out, and even cause power grid accidents. Therefore, it is an indispensable key insulation component of the transformer.