Corona Ring in Transmission Line
The corona ring are widely used in transmission lines. HIGHV produces and manufactures various corona ring for transmission lines.
Contact our Highv team today to get your corona shielding solutions and details.
Corona Ring in Transmission Line Data Sheet
| Product Name | Corona Ring/Aluminum Corona Ring |
| Corona Ring Raw Material | Grade Aluminum Alloy 3A21/1060/6061/6063 Stainless Steel ASTM Grade 304/316L Copper C1100 |
| Matching Fasteners | ASTM 304 Stainless Steel Or Hot Galvanized Steel |
| Surface Finish | Polishing Silvery Bright, Ra3.2 Roughness |
| Other Surface Treatment | Blue Color Painting/Galvanized/Coating Insulating Varnish |
| Corona Ring Tube Wall Thickness | 2.0mm-10.0mm |
| OEM/ODM | As client’s drawings requirments |
| Middle Support Plate And Bracket | Aluminum material or It can be customized as drawing requirement |
| Inner Diameter of Corona Ring | Minimum 190mm |
| Outer Diameter of Corona Ring | Maximum 16000mm |
| Production Type of Corona Ring | Pipe Bending/Pressure Die Casting |
| Operating Voltage | 170kV-4200kV |
| Drawings Support | CAD/PROE/UG/SOLIDWORKS, etc |
| Ring Mould | At stock or as your drawing new design and production |
| Corona Ring Packaging | Carton Box/Wooden Pallet/Wooden Case |
| Loading Port | Shanghai/Ningbo/Any Other Port In China |
*As a professional manufacturer, we strictly produce products according to the standard ASTM & GB/T
Corona Ring in Transmission Line Resources
Corona Rings: Are They Needed?
Corona Rings: Are They Needed?Modeling predicts corona levels based on configuration, hardware and line voltage By Raymond Ferraro, Public Service Enterprise Group; Emilie Dohleman, Public Service Company of New Mexico;
Aluminum Corona Shielding Sphere Design For 460kV Terminal Bushing
The aluminum corona shielding sphere, also known as a corona shielding ball, is used for 460kV terminal bushings on power transformers and is primarily made from aluminum alloy. Typically, aluminum
How Does Corona Ring Help Against Corona Discharge?
How does corona ring help against corona discharge? Read on to know about the corona ring guide. This article will help you learn why does corona ring help against corona
Corona Rings VS Grading Rings – HIGHV
The corona rings and grading rings are both rings types. They are widely used in in high voltage test equipment and power systems. They play a key role in the
Corona Ring Design: The Definitive Guide (2024)
Corona ring design guide is all about how you design the corona ring in transformer bushings, insulators, transmission lines, substations, high voltage laboratory, surge arresters and more. The corona ring
5 Factors Of Corona Rings Installation: The Beginner’s Guide
High quality corona rings are easily for different devices and systems installation. In this part of the article, you are going to learn more about all details of corona rings
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Corona Ring in Transmission Line: The Ultimate Guide
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Check out the following buyer’s guide for high voltage test engineers, operators and beginners, we’ll offer you the high quality corona ring with 24/7 custom service to fit your drawing ideas and plans.
Contact our Highv team today to get your corona shielding solutions and details.
What is corona ring in transmission line?
You probably have heard about corona discharge before but haven’t known much about it, and what is the corona ring in transmission line?
Furthermore, have you ever considered the influence of various phenomena to the reliability of transmission lines, especially those that are high-voltage and long-distance transmission lines?
If no, don’t worry as this article will share a lot of information that can answer all your questions. The corona effect is very common in most electrical or electronic devices. Therefore, this article would benefit anyone who would like to know more about the causes and effects of these phenomena.
In a transmission line, the corona ring rotates around the perimeter of the outer conductor.
Is corona in power transmission lines dangerous?
Corona is a natural phenomenon that occurs on power systems and is caused by the partial breakdown of air.
Corona are generated in insulator tapes, conductor support and hardware equipment. If the thickness of the corona exceeds a certain level, corona discharge may occur.
This leads to damage to power transmission lines, flashovers and arcing between conductors, and subsequently cause system effectiveness reduction.
What is the function of corona ring in power transmission line?
Corona ring is an important protective and dissipative device in power transmission line.
Corona rays appear when the voltage gradient reaches about 30 kv/m.
It is a real problem of high-voltage activated equipment, such as transformers, circuit breakers and lines.
Its most common cause is partial discharge (PD), resulting in a corona current and loss of insulation. Although voltage gradients are not satisfied to create corona directly, they will morph into a corona condition when they become extreme.
Corona ring can effectively eliminate more than 99% of PD. In addition, the introduction of corona rings helps reduce voltage surges caused by electrical storms on long distance transmission lines . Corona rings were first used on transmission lines in the early 1930s.
The principles for using corona rings are rooted in Faraday’s law, which describes the relationship between capacitance and electric field strength.
How to install corona ring in transmission line?
- The corona ring boady shall be cleaned, and the surface dust should not be remaining.
- Fix the corona ring in the transmission line with the mark side upward, then align the screw holes and press it to make sure there is no gap between them.
- Drill holes in the transmission line as per position of bolts to fit the corona ring, drill depth of which shall not less than 3mm (1/8”).
- Tighten screws with torque wrench in sequence, tightening torque for M12 is 50Nm, for M16 is 70Nm.
- Avoid any problems during assembly of corona ring in the transmission line or during operation after installation.
Conclusion
When it comes to design and production of corona rings in Transmission Line, Highv’s 30 years of manufacturing experience will really show.
HIGHV engineers expert team are skilled at AUTO CAD, PROE, SOLID WORKS and UG softwares for your aluminum corona rings project.
Highv is one of the professional aluminum corona rings manufacturers in China, we are top leader aluminum corona rings factory. Contact us today.
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