Brief Description of Angle Ring Angle ring is widely used for insulating of power transformers, which is suitable at the coils top and bottom. It shortens insulation distance of the coils. Product Attributes Related attributes of angle ring: Place of Origin: China (Mainland) Model Number:110KV-750KV Type: transformer pressboard Material: transformer insulation pressboard Application: High Voltage Rated Voltage:110KV-750KV Tensile Strength: high color: natural color thickness:1.0--2.0mm dimension: as per customer’s drawing