What is the function of corona ring?

What is the function of corona ring?

The corona ring, also known as an anti-corona ring or grading ring, serves an important function in various electrical power systems. But what exactly is its purpose? In this article, we will explore the function of corona rings and their significance in electrical engineering. Let's delve into the details!

1. Preventing corona discharge:

The primary function of a corona ring is to prevent corona discharge. Corona discharge occurs when high voltage electricity ionizes the surrounding air, creating a visible glowing aura or a hissing sound. This discharge can lead to energy loss, electromagnetic interference, radio frequency noise, and even damage to nearby equipment. By using a corona ring, the electric field intensity at the conductor's surface is reduced, preventing corona discharge and its associated drawbacks.

2. Enhancing voltage performance:

Corona rings improve the overall voltage performance of electrical systems. Without the corona ring, the electric field gradient at the surface of the conductor becomes unequal. This inequality leads to corona discharges, which cause partial current flows. By utilizing a corona ring, the electric field near the conductor surface is modified, resulting in a more uniform electric field distribution. This modification enhances the voltage performance and decreases the potential risks associated with corona discharge.

3. Reducing audible noise:

Corona discharge not only causes energy loss but also generates audible noise. This audible noise originates from the vibrating motions of air molecules during corona discharge. When a corona ring is installed, it helps suppress this noise by eliminating or reducing the occurrence of corona discharges. This aspect makes corona rings particularly essential in high-voltage power transmission systems close to populated areas or noise-sensitive environments.

4. Improving equipment longevity:

Corona discharge can adversely impact the insulation system of electrical equipment, leading to a decrease in its service life. The presence of corona rings helps minimize the occurrence of corona discharges, which subsequently reduces the stress on insulation materials. This, in turn, contributes to the longevity of the equipment, ensuring reliable and continued operation over an extended period.

In conclusion, the function and significance of corona rings in electrical power systems are undeniable. These rings play a crucial role in preventing corona discharge, enhancing voltage performance, reducing audible noise, and improving equipment longevity. By employing corona rings, the numerous drawbacks associated with corona discharge can be effectively mitigated. So, the next time you see a corona ring on power lines or other electrical components, remember its vital function in maintaining the integrity and efficiency of our power systems.

The company is the world’s best china preformed tension clamp set for adss manufacturers, coronaring, china preformed suspension clamp set for opgw manufacturers supplier. We are your one-stop shop for all needs. Our staff are highly-specialized and will help you find the product you need.