corona ring

Caroline Ma07 Jun, 2022Other

Corona rings are annular metal rings that are fixed to the ends of bushings and insulator strings. They are also referred to as anti-corona rings. Corona rings are used to prevent corona discharges that occur in high voltage transmission lines. Corona discharge or corona loss is a major problem in EHV transmission lines that cause power loss. One way to reduce corona discharge is to use corona rings.

spiral vibration damper

Caroline Ma07 Jun, 2022Other

Spiral vibration damper is made of a solid PVC rod and designed in the form of a spiral to suit the cable diameter. Spiral dampers have two sections: gripping and dampening section. The gripping section was wound over the protective helix and the dampening section was wound loosely over the cable.

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