The generation of corona discharge is a partial discharge phenomenon where the electric field strength on the surface of a high-voltage conductor exceeds the breakdown field strength of the air, resulting in the ionization of air molecules. In substations, transmission lines, high-voltage motors and other equipment, sharp edges, irregular joints or surface defects of conductors are very easy to form electric field concentration, which may trigger corona even at normal operating voltage. Long-term neglect of this problem will not only accelerate the aging of key components such as insulators and cable heads, and shorten the service life of equipment. It may also further destroy the metal structure and insulation properties of peripheral equipment due to corrosive gases such as ozone and nitrogen oxides produced by corona, forming a vicious circle from discharge to corrosion to more serious discharge. In addition, in special environments such as humidity and high altitude, the air breakdown field strength decreases, and the probability and degree of harm of corona discharge will be significantly increased, which will bring greater challenges to buyers' equipment selection and project operation and maintenance.
Facing the complex hazards of corona discharge, traditional solutions such as polishing the surface of the conductor and increasing the thickness of the insulating layer usually have limited effects, high costs or complex construction, which cannot fully meet the comprehensive needs of modern high-voltage power systems for safety, economy and convenience. At this time, the professional corona ring coil has become a high-quality choice to solve the problem of corona discharge through precise electric field optimization design. As a supplier that has been deeply engaged in the field of power fittings for many years, our corona ring coil relies on three advantages to provide reliable corona protection solutions for buyers around the world.
Starting from the choice of materials, our corona ring coil adopts a composite process of high-strength alloys and special anticorrosive coatings, which not only gives corona ring coil excellent mechanical strength and fatigue resistance, can withstand extreme temperature environments, and can effectively resist the erosion of corrosive media such as industrial dust and salt spray. It can also maintain long-term stable operation in harsh scenarios, greatly reducing the frequency and cost of equipment maintenance. Moreover, in terms of structural design, our corona ring coil adopts a streamlined arc structure, and the curvature and diameter of the ring body are accurately optimized through finite element analysis software, so that the electric field strength on the surface of the conductor can be evenly dispersed to the surface of the ring body, completely eliminating the concentration of the electric field, and avoiding the generation of corona discharge from the source. At the same time, for different voltage levels and equipment types, we can provide customized design services so that corona ring coil can be perfectly adapted to the buyer's equipment to avoid protection failures caused by size discrepancies.
In addition, in practical application scenarios, our corona ring coil also shows the advantages of easy installation and strong compatibility. Corona ring coil adopts a modular design, which does not require complex on-site processing, and only requires conventional tools to complete the installation, greatly shortening the construction cycle. At the same time, corona ring coil is made of lightweight materials, which can effectively reduce the load-bearing burden on the equipment and avoid additional stress damage to the original power facilities. Up to now, our corona ring coil has been successfully used in high-voltage power projects in more than 20 countries around the world, covering substation upgrades, cross-border transmission line construction, new energy power station supporting and other fields, fully verifying the reliability of corona ring coil. If you want to know the detailed parameters or customized solutions of corona ring coil, you can contact us at any time and we will provide you with one-to-one professional services.