Importance of Angle ring

As an important part of the transformer insulation structure, the angle ring plays a role in improving the electric field distribution at the end of the winding and improving the insulation strength. Its stable technical performance plays an important role in ensuring the reliability of the insulation system. The electric field at the end of the transformer is complex and uneven, the manufacturer tries to find ways to reduce the insulation distance of the end and material cost as much as possible without reducing the due insulation strength. The shaped angle ring (hereinafter referred to as the angle ring) has just realized that. 

The end part of the transformer winding is an unbalanced electric field. The main way to increase its insulation strength is to improve the electric field. The end of the winding should place an angle ring that is basically consistent with the contour line. The reduction reduces the possibility of creeping discharge, which is beneficial to improve the insulation strength and effect.