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Corona Ring

A corona ring, also known as a grading ring, is a metal ring installed at the terminals of high-voltage equipment (such as transmission line insulator strings or substation bushings).

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  • Product Introduction

    A corona ring, also known as a grading ring, is a metal ring installed at the terminals of high-voltage equipment (such as transmission line insulator strings or substation bushings). Its primary function is to control and homogenize the distribution of the surrounding electric field by optimizing the electrode shape, thereby effectively suppressing the occurrence of corona discharge. Corona discharge can lead to power loss, radio frequency interference, and the aging of equipment materials. This product features a simple structure, secure installation, and strong corrosion resistance. It significantly enhances the operational efficiency and service life of high-voltage equipment, serving as a crucial fitting for ensuring the safe, stable, and environmentally compliant operation of the power grid. It is widely used in ultra-high voltage (UHV) and extra-high voltage (EHV) transmission lines, high-voltage switches, transformers, and other equipment.

     

     

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Specializing in the production and service of preformed armor rods, power line hardware, line equipment, and telecommunications products, we offer a wide range of over thousands of power products. Our main offerings include the R&D, production, and sales of ADSS, OPGW, and OPPC optical fiber cable fittings, preformed power line hardware, preformed fittings for electrified railways, as well as safety tools and equipment.

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Relying on our integrated advantages in R&D, production and sales, we offer professional customization services for over a thousand products including ADSS/OPGW/OPPC optical cable hardware, electrified railway hardware and safety tools, precisely matching the complex application requirements in fields such as power, rail transit and communication. Combining mature experience with technological innovation, we provide reliable and efficient customized solutions for your projects.

All goods will undergo strict inspection before shipment. Please check them carefully upon receipt. If there are any problems, please contact us in time.

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