Corona Shielding Sphere
- Quotation with Technical Data
- 24/7 Service Fast Response
- Customized Size
- Prime Quality Raw Material
- Surface Treatment
- Drawing Design Service
Top Corona Shielding Sphere Supplier in China
As the top corona shielding sphere supplier and manufacturer in China, HIGHV produces and manufactures various corona shielding spheres.
A corona shielding sphere is used in high voltage bushing and power testing equipment, which are mainly made of aluminum alloy.
Generally the corona shielding sphere needs to be polished bright to achieve more smooth and no burr surface finish to ensure better corona shielding effect.
HIGHV supplies different aluminum grades: 1060, 6061, 6063, etc.
HIGHV offers top shielding solutions that include types, sizes, and alloy options during production. We always adhere to standard specifications. Communicate with our expert team now!
Corona Shielding Spheres Data Sheet
| Product name: | Corona shielding sphere/ball |
| Service: | OEM and ODM is available |
| Raw material: | Aluminum: 6061/6063/3A21/1060 Copper: C1100 |
| Sphere wall thickness: | 2.0mm-10.0mm |
| MOQ: | 1 Piece |
| Surface treatment: | Polished Bright/Galvanized/Color painting/Coating insulating varnish |
| Packaging: | Steel pallet, wooden pallet and cases with fumigation, wooden cases, etc |
| Delivery time: | Within 15-25 days after receiving order deposit payment |
| Transaction term: | EXW, FOB, CIF, DDP, etc. |
| Payment term: | T/T, L/C, West Union |
| Product application: | Power transformer, high voltage bushing, high voltage test systems, etc |
*As a professional manufacturer, we strictly produce products according to the standard ASTM & GB/T
Corona Shielding Sphere Customized Dimensions
Wall Thickness (mm)
2.0 ~ 20.0
Diameter (mm)
Min 150
Surface Finish
Prime bare aluminum, Polished or as per demand
Software Support
CAD/PROE/UG/SOLIDWORKS, etc
Tolerance according to ASTM
*Customized size please contact our team
Corona Shielding Sphere Packaging & Shipping
- Highv has professional packaging team who can adopt developed packaging technology and packaging style to ensure the corona sphere packaging quality.
- Standard sea packing, the corona sphere packing can be done by wooden case and carton box. The wooden case and corona spheres contact parts must be padded with foamed paper or rubber. Wooden case four corners shall not be smaller than the size of the corona balls. Corona shielding sphere’s surface is wrapping foam paper, and four sides contacting with wooden case with foam mat protection.
- In addition, clear labels are tagged on the outside of the packages for easy identification of the corona shielding sphere measurements and quality information.
*Other special packaging will be designed as customer’s request
Corona Shielding Spheres 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;
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Corona Rings VS Grading Rings – HIGHV
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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
Need An Expert To Customized Your Corona Shielding Spheres?
Corona Shielding Spheres: The Ultimate Guide
Are you looking forward to having a plan or coming up with an idea to purchase aluminum corona shielding spheres for laboratory, bushing, power transformer manufacturing?
Check out the following buyer’s guide for high voltage test engineers, operators and beginners, we’ll offer you the high quality corona shielding sphere 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 Are Corona Shielding Spheres?
A corona shielding sphere is also known as corona shielding ball and used in high voltage bushing and power testing equipment, which are mainly made of aluminum alloy.
Generally the corona shielding sphere needs to be polished bright to achieve more smooth and no burr surface finish to ensure better corona shielding effect.
Corona shielding sphere is widely used on the end fittings of high voltage bushings and other high voltage testing equipments. High voltage can result in unwanted noise and corona, so corona shielding spheres are needed.
Corona shielding sphere is suitable for the voltage form of alternating current (AC), which can distribute the high voltage evenly around the object to ensure that there is no potential difference (PD) between the various parts of the sphere.
How Do Corona Shielding Spheres Work?
The corona shielding sphere is widely used for high voltage bushing and equipment to suppress corona effectively.
At sharp point (like bushing head) the electric field is high which results in corona. Aluminum corona shielding sphere should be installed at this point.
The larger outside diameter, smooth polishing surface finish of aluminum corona shielding sphere can help control the local electric field.
So electric field gradient reduces and suppresses the corona. As the testing voltage increases the outside diameter of the required corona shielding sphere must also increase to obtain better corona control effect.
Highv has rich decades of experience in corona shielding sphere design and shielding solutions technology, uses advanced manufacturing equipments and high efficient drawing software, which can make sure user’s every project to run more smoothly, safely and efficiently.
What Materials Can Be Used For Corona Shielding Spheres?
Material Available:
| Aluminum | 1060 |
| Aluminum | 6061 |
| Aluminum | 6063 |
| Die Casting Aluminum Alloy | AL101 |
| Copper | C11000 |
| Copper | C12000 |
| Stainless Steel | SS304 |
| Stainless Steel | SS316L |
The Features Of Corona Shielding Sphere
High Quality: The aluminum sphere surface roughness is low and the dimension tolerance is small.
Low Cost: High material utilization and low production cost.
Compared with CNC machining, rotary press and pipe bending process can save 20%-50% of materials, up to 80%, and reduce the cost by 30%-70%.
Applications of Corona Shielding Sphere
- High voltage bushing
- GIS
- Substation
- Power transformer
- Current transformer
- AC voltage test transformer
- Voltage transformer
- Power cable (accessory)
- High voltage laboratory (High voltage test equipment)
What We Can Do For Your Corona Shielding Sphere Project?
Highv is one of the leading shielding sphere manufacturers China, Experts in Manufacturing and exporting aluminum grading rings with 30 years’ rich experience.
Our professional engineers team are skilled at AUTO CAD, PROE, SOLID WORKS and UG softwares for your products design and production.
Need a quotation or technical support of corona shielding spheres, call us or email us to get more information for your projects.
How To Buy Corona Shielding Sphere From Us?
1. Consult: We will recommend the most suitable solutions and corona ball moulds to you after being informed by your inquiries.
2. Quotation: We will offer you with our detail quotation according to the consulted corona sphere. You will get the most suitable specifications, the full support and the affordable price.
3. Process Evaluation: Buyers and our side carefully evaluate and discuss all the details (technical parameters, specifications and business terms) of the order to exclude any misunderstanding.
4. Placing Order: If you have no doubt, we will send you the proforma invoice, and then we will sign a contract with you.
5. Production: We will arrange the corona shielding sphere production immediately once receiving your signed purchasing contract and payment deposit. The coming news about production will be updated and informed to the buyer during the corona sphere production.
6. Quality Control: The spirit of our company is that safety is the foundation of production and quality makes customers. We pay more attention to quality support, supply scope, inspection, testing standard, shipment packing, after-sales service.
7. Delivery: We will arrange the delivery as the terms in the contract after the confirmation by the buyer.
8. Custom Clearance: We will supply and deliver all the necessary shipping documents to the buyer and ensure a smooth customs clearance.
9. Support and Service: We will offer professional technical support and free service by Phone, Email, Skype, WhatsApp, Online Live Chat, Remote Service. We also have door-to-door service in some areas.
Conclusion
Corona shielding sphere is widely used on the end fittings of high voltage bushings and other high voltage testing equipments. High voltage can result in unwanted noise and corona, so corona shielding spheres are needed.
Highv is one of the professional aluminum corona rings and spheres manufacturers in China.
When it comes to corona rings and spheres design, production and complete solutions, Highv’s 30 years of manufacturing experience will really show.
Feel free to inquiry us about your corona rings and spheres projects.
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