Take porcelain bushing of phase sequence instruction

The utility model discloses a take porcelain bushing of phase sequence instruction, include: conducting rod, vase and porcelain lid, the conducting rod passes the vase with porcelain lid is installed in transformer tank and is covered, the upper end of vase sets up the porcelain lid, the lower extreme of vase with the transformer tank lid is connected, the vase surface is provided with the glaze layer, the week side spaced of vase be provided with the multiunit to the convex full skirt of vase week side, or, the upper portion of vase be provided with a set of to the convex full skirt of vase week side. The glaze layer of this structure through be provided with the different phase sequence signs of representative on the vase surface utilizes the glaze layer that nature is stable to carry out the phase sequence sign, just can audio -visually reflect the phase sequence of this porcelain bushing on the transformer, and glaze layer nature is stable, and phase sequence instruction function can exist for a long time