Corona Shielding Covers

Corona Shielding Covers

corona shielding cover

Are you looking forward to having a plan or coming up with an idea to purchase aluminum corona shielding covers 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 cover 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 a corona Shielding Cover

A corona shielding cover is used in high voltage bushing and power testing equipment, which are mainly made of aluminum alloy.

Generally the corona shielding cover needs to be polished bright to achieve more smooth and no burr surface finish to ensure better corona shielding effect.

Corona shielding cover 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 covers are needed.

Corona shielding cover 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 cover.

How Does a Corona Shielding Cover Work

The corona shielding cover 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 cover should be installed at this point.

The larger outside diameter, smooth polishing surface finish of aluminum corona shielding cover 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 cover must also increase to obtain better corona control effect.

Highv has rich decades of experience in corona shielding cover 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 Cover

Material Available:

Die Casting Aluminum AlloyAL101
Stainless SteelSS304
Stainless SteelSS316L

Corona Shielding Cover Technical Parameters

Item name:Corona Shielding Cover
Service:OEM and ODM is available
Raw material:

Aluminum: 6061/6063/3A21/1060

Copper: C1100

Cover 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:Substation, high voltage bushing, high voltage test systems, etc

What Are The Advantages of Corona Shielding Cover

  • High Quality: The cover 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%.

What Is A Corona Shielding Cover Used For

corona shielding cover application

HIGHV custom made solutions and aluminum corona shielding covers are widely used for below different high voltage fields:

  • High voltage bushing
  • GIS (Gas Insulated Switchgear)
  • 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 Cover Project

corona shielding cover showcase one
Product NameCorona Shielding Cover
Material UsedAluminum 6061
Surface FinishPolishing Bright
ApplicationHigh Voltage Test
Delivery CountryUSA
corona shielding cover showcase two
Product NameCorona Shielding Cover
Material UsedAluminum 6061
Surface FinishPolishing Bright
ApplicationHigh Voltage Divider
Delivery CountryCanada

What Is Corona Shielding Cover Packaging?

  1. Highv has professional packaging team who can adopt developed packaging technology and packaging style to ensure the corona shielding cover packaging quality.
  2. Standard sea packing, the corona shielding cover packing can be done by wooden case and carton box. The wooden case and corona shielding cover contact parts must be padded with foamed paper or rubber. Wooden case four corners shall not be smaller than the size of the corona shielding cover. Corona shielding cover’s surface is wrapping foam paper, and four sides contacting with wooden case with foam mat protection.
  3. In addition, clear labels are tagged on the outside of the packages for easy identification of the corona shielding cover measurements and quality information.
corona shielding cover packaging

How To Choose Corona Shielding Cover Manufacturer

As the one of leading corona shielding cover manufacturers in China, Highv is professional at manufacturing and supplying of aluminum corona shielding cover with 30 years experience.

The engineers expert team are skilled at AUTO CAD, PROE, SOLID WORKS and UG softwares for your corona shields design and production.

You will get the high quality corona shields with affordable price from us.

HIGHV offers complete corona shielding solutions, 24/7 one-to-one free service and support, which is available free.

How To Buy Corona Shielding Cover

1. Consult: We will recommend the most suitable solutions and moulds to you after being informed by your inquiries.

2. Quotation: We will offer you with our detail quotation according to the consulted shielding cover. 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 shields 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 shields 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.

Need More Corona Shielding Solutions