Saddle-shaped grading ring for 220 kV line and 5000m altitude

The utility model provides a saddle-shaped grading ring for 220 kV line and 5000m altitude. The saddle-shaped grading ring comprises a ring body and a support in welding connection with the ring body. The ring body and the support form a saddle shape. The diameter of the ring body is 50mm. The diameter of the support is 30mm. The ring body has a curved surface and is composed of arc sections close to a V-shaped single connection insulator chain to be adapted and transition sections in smooth connection with the two arc sections. The ring surface of the arc sections of the ring body is vertical to the V-shaped single connection insulator chain to be adapted basically. The saddle-shaped grading ring is suitable for a V-shaped single connection insulator chain in a 220 kV line and at an altitude of 5000m, and ensures safe operation of a power transmission line in high-altitude regions. Voltage distribution of wire roots especially a first insulator and a second insulator is improved effectively and visible coron