aluminum anti corona rings

Aluminum Anti Corona Rings

Aluminum anti corona rings are made of aluminum alloy, which are widely used for high voltage laboratory, high voltage bushing, power transformer, high voltage capacitor, GIS, substation and insulator manufacturing.

Check out the following buyer’s guide for high voltage testing engineers, researchers and beginners, we’ll offer you the high quality aluminum anti corona rings with 24/7 custom service to fit your drawing ideas and plans.

Contact our Highv team today to get you corona rings and solutions.


Aluminum anti corona rings, also called aluminum corona control rings, they are the toroids of conductive materials, usually aluminum alloy, which are attached to a terminal of high voltage equipments. The role of the aluminum anti corona rings are to distribute the electric field gradient and lower its maximum values below the corona threshold, preventing corona discharge. Aluminum anti corona rings are used on very high voltage power transmission insulators and switchgears, and on scientific research apparatus that generates high voltages.

Aluminum Anti Corona Rings Technical Parameters

Product NameAluminum Anti Corona Rings
Aluminum Anti Corona Ring Raw Material

Grade Aluminum Alloy 3A21/1060/6061/6063, etc

Matching FastenersASTM 304 Stainless Steel Or Hot Galvanized Steel
Surface FinishPolishing Silvery Bright, Ra3.2 Roughness
Other Surface TreatmentBlue Color Painting/Galvanized/Coating Insulating Varnish
Aluminum Anti Corona Ring Tube Wall Thickness2.0mm-10.0mm
OEM/ODMAs customer’s drawings requirments
Middle Support Plates And BracketsAluminum material or it can be customized as drawing requirement
Inner Diameter of Aluminum Anti Corona RingMinimum 190mm
Outer Diameter of Aluminum Anti Corona RingMaximum 16000mm
Production Type of Aluminum Anti Corona RingPipe Bending/Pressure Die Casting
Operating Voltage170kV-4200kV
Drawings SupportCAD/PROE/UG/SOLIDWORKS, etc
Aluminum Anti Corona Ring Mould At stock or as your drawing new design and production
Aluminum Anti Corona Ring PackagingCarton Box/Wooden Pallet/Wooden Case
Loading PortShanghai/Ningbo/Any Other Port In China

What Are The Features of Aluminum Anti Corona Rings

  1. High strengh
  2. Excellent polishing bright finish
  3. Good corona shielding advantages
  4. High moistureproof
  5. Tasteless&non-poisonous
  6. Anti-causticity
  7. Competitive price with good quality
  8. Low MOQ (1 piece ring is even acceptable in some special conditions)
  9. Customized sizes and specifications /OEM is available

Aluminum Anti Corona Rings Applications

HIGHV custom made aluminum anti corona rings are widely used for:

  • High voltage capacitors and banks
  • High voltage bushing
  • GIS (Gas Insulated Switchgear)
  • Substation
  • Surge arrester
  • Shunt reactor
  • Power transformer
  • Current transformer
  • AC voltage test transformer
  • Voltage transformer
  • Impulse voltage generator and current generator testing system
  • Power cable (accessory)
  • High voltage laboratory (High voltage test equipment)
  • High voltage transmission line (overhead line), etc
  • UHVDC transmission line converter valve system


1.What Is Anti Corona Ring Packaging?

  1. Highv has professional packaging team who can adopt developed packaging technology and packaging style to ensure the aluminum anti corona rings packaging quality.
  2. Standard sea packing, the corona rings packing can be done by wooden case and carton box. The wooden case and corona rings contact parts must be padded with foamed paper or rubber. Wooden case four corners shall not be smaller than the size of the corona rings. Corona ring’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 products measurements and quality information.

2.How To Choose Right Aluminum Anti Corona Rings Manufacturers?

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

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

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

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

3.How To Design Aluminum Anti Corona Rings?

  • 1 New Mould Design
  • 2 Choosing The Right Raw Materials For Corona Ring Design
  • 3 Aluminum Corona Ring Wall Thickness Design
  • 4 Aluminum Corona Ring Outer Diameter Design
  • 5 Installation Distance And Dimensions Design
  • 6 Brackets And Mounting Plate Design
  • 7 Choosing The Right Design Expert

Read Designing Aluminum Corona Rings: 7 Things To Consider

4.What Are Aluminum Anti Corona Rings Surface Treatment?

Usually the polishing silvery bright is the final main surface finish of the aluminum rings not only for the indoor high voltage laboratory centers but also for the outdoor transmission lines.

The surface finish roughness is Ra3.2. The corona rings production process is according to DIN ISO2768-MK general tolerances.

Other manufacturing standard includes general tolerances for welded constructions, tolerances for lengths, angles, tolerances for shape and position, etc will be in accordance with EN ISO 13920-B-F.

5.What Is MOQ of Aluminum Anti Corona Ring?

If the mould is ready on stock, the MOQ will be less. 1 piece corona ring is acceptable.
If you need customized ones, the trial order MOQ is will be negotiated.

6.What Is The Delivery Time?

It depends on your corona rings order total quantity.
Usually from the start of the order to the completion of production for about 2-3 weeks.

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