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Tube Wall High Voltage Corona Rings 3A21 Grade For Power Cable Test

Categories High Voltage Corona Rings
Brand Name: HIGHV
Model Number: CR06-500KV-HVE
Certification: ISO/SGS/TUV
Place of Origin: JIANGSU, CHINA
MOQ: Negotiation
Price: Negotiation
Payment Terms: L/C, T/T, Western Union, MoneyGram
Supply Ability: 4000 pieces per month for high voltage corona rings
Delivery Time: 10-35 days or as per customer's quantity request
Packaging Details: The high voltage corona ring packing can be done by standard sea wooden cases and cartons
Alloy Grade: Aluminum 6063, 3A21
Roughness: Ra3.2
Name: Aluminium Corona Rings
Application: Power Transformers
Production Process: CNC Machining, Cutting, Bending, Welding, Polishing, Cleaning, Packing
Tolerance: ±0.1mm Available
Surface: Polishing Bright
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Tube Wall High Voltage Corona Rings 3A21 Grade For Power Cable Test

500kV Tube Wall High Voltage Corona Ring 3A21 Grade For Power Cable Test

Product Description:

MaterialAluminum 3A21 are main material for corona ring and other shielding components production
Tube Wall Thickness3.0mm-5.0mm or according to customers’ drawings
ProductionAluminium Pipe Bending and Welding
Voltage Class500kV
Outside Diameter500-16000mm or as customer’ drawings request
StandardASTM, ISO, Non-Standard or according to customers’ drawings requirement
CertificateISO, SGS etc.
UseagePower Transmission Line, Power transformer, Power Cable Test, High Voltage Bushing Test, high voltage laboratory test etc. High Voltage Corona Rings are used on the end fittings (line end or tower end) of post insulators and suspension insulators. High voltages can result in unwanted noise (RIV) and corona, so Corona Rings are needed.
Packing detailsInternational standard package such as carton and wooden cases or according to your requirements
Delivery timeAccording to the quantity of products but will as soon as possible
Payment termsL/C, T/T, Western Union
50% TT before the production, 50% before the shipment
Place of OriginJiangsu Province, China Mainland


Power transformers and reactors are subjected to a series of testing to ensure their safe running both before and after the installation, including routine test, type test and on-site test. The tests that can be done in the factory include open-circuit and short-circuit measurements, impulse voltage test and applied voltage test. A variety of measurement instruments are concerned in above testing for various tasks, such as to determine transformer parameters.

HIGHV custom-makes solutions and high voltage corona rings for power transformer systems' testing as customer's drawing request.


  1. Competitive price with good quality.
  2. Low MOQ (2 pieces corona rings are even acceptable in some special conditions).
  3. Customized sizes with smooth surface and specifications/OEM available.
  4. In Shanghai and Near Ningbo port of China, convenient transportation.
  5. Short lead time (15-35 working days according to customers' order quantity).

Why Choose Us:

  • 1. For delivery time, which will be 15-35 days after deposit received.
  • 2. Accept both large and small order quantity, min order quantity 1 piece is workable.
  • 3. Manufacture all size of corona rings products according to customers’ special drawings.
  • 4. Convenient transportation from our factory to Shanghai port.
  • 5. Unique packaging methods by our professional team.


  1. Aluminium Grading Ring/Spinner
  2. Aluminium Shielding Tube/Pipe Fitting
  3. Aluminium Corona Control Cover
  4. Aluminium Conductor
  5. Aluminium Flange
  6. Aluminium/Copper Corona Sphere/Ball
  7. CNC Machining Part


  1. Our company has professional team and adopts developed packaging technology and packaging style to ensure the packaging quality.
  2. Standard sea packing, the corona ring packing can be done by wooden case and cartons. The wooden case and rings contact parts must be padded with foamed paper or rubber. Case four corners shall not be smaller than the size of the rings. Corona Rings surface Wrapping foam paper, 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 rings measurements and quality information.
  • 20 ft - GP: 5.8m (Length) * 2.13m (Width) * 2.18m (Hight) ------ About 23MTS
  • 40 ft - GP: 11.8m (Length) * 2.13m (Width) * 2.18m (Hight) ------ About 27MTS
  • 40 ft - HG: 11.8m (Length) * 2.13m (Width) * 2.72m (Hight) ------ About 27MTS

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Quality Tube Wall High Voltage Corona Rings 3A21 Grade For Power Cable Test for sale
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