CORONA RINGS/GRADING RINGS/CORONA SHIELDS/TOROIDS/BALLS manufacturing

Transmission line Insulators Corona Rings/Grading rings/Guard rings Protection
HV Surge Arresters(lightning Arresters)Aluminum Tube rings
High Voltage Capacitor Banks Corona Shields/Grading rings
GIS (Gas Insulated Switchgear) Corona Rings/Grading rings
Power transformer/High Voltage current transformers Corona shields
GIS (gas insulated switchgear) Aluminum Conductors

Corona rings are used primarily as a control, or grading component, in the electrical utility industry for high voltage applications such as switches, substation bus hardware, and dead end assemblies on transmission lines.
Such ring devices of various sizes and configurations act to reduce radio and television inteference which is a direct result of corona, a phenomenon created when the potential of a conductor in the air is raised to such a value that the dielectric strength of the surrounding air is exceeded.

Material：Aluminun(3.3206 ALMg Si 0,5 DIN 9107(EN AW-6060) F22，aluminum 6063)& Steel & Copper

Technological Process：Aluminum Die-casting/Aluminum Tube Bending

Surface treatment：Polishing

Application：Transmission Line insulators/HV Lightning Arresters,Surge Arresters/HV Transformers/GIS/HV Testing equipment......

How Corona Ring Installation for Transmission Insulators？From Hubbell Power Systems engineer demonstrate

Video showing how aluminum grading rings installed in the composite suspension insulators for transmission line