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As a leading aluminum corona ring manufacturer since 1993, HIGHV delivers high-quality, custom-engineered corona shielding components for power transformers, GIS, transmission lines, and high-voltage laboratories across 100+ countries.
A trusted corona ring and shielding solutions provider with decades of innovation and excellence in aluminum fabrication for high-voltage applications.
HIGHV is a leading manufacturer specialized in processing aluminum corona rings and grading rings for global power industries. We provide superb solutions in high-voltage corona shielding and custom aluminum fabrication.
With over 28 years of experience, our passionate and innovative team serves clients in more than 100 countries, ensuring power transmission and distribution projects run smoothly, safely, and efficiently.
High-performance aluminum corona rings, grading rings, and shielding components engineered for reliability and efficiency in high-voltage environments.
Used in GIS, transformers, and high-voltage labs to control electric field gradients and prevent corona discharge.
Reduces potential gradient along insulators to prevent premature electrical breakdown in transmission systems.
Also known as aluminum electrodes; designed for high-voltage testing and optimal corona control.
Custom-sized covers made from aluminum or copper for precise high-voltage shielding applications.
Also called corona shielding balls; used in high-voltage test setups to ensure uniform field distribution.
Toroidal conductive rings that distribute electric field gradient below corona threshold.
Custom-fabricated shielding components for bushings, insulators, and high-voltage equipment.
End-to-end aluminum fabrication services with Western-style management and world-class quality standards.
Since 1993, we’ve been delivering reliable corona control solutions with deep industry knowledge and technical mastery.
Our manufacturing processes meet international quality standards, ensuring consistency and performance in every product.
Serving 580+ clients across 100+ countries with fast delivery, responsive support, and tailored engineering.
Corona rings and shields for voltage regulation and insulation protection in power, current, and voltage transformers.
Precision aluminum rings to manage electric fields and prevent discharge in compact high-voltage switchgear systems.
Shielding components for test equipment, impulse generators, and current testing systems.
Grading rings and arcing solutions for insulators and surge arresters on high-voltage transmission networks.
Comprehensive shielding systems for bushings, capacitors, and dividers in substation infrastructure.
Custom solutions for wind and solar power transmission systems requiring stable high-voltage performance.
A corona ring is a toroidal-shaped conductive component, typically made of aluminum alloy, attached to high-voltage equipment terminals to distribute the electric field gradient and prevent corona discharge.
A grading ring reduces the potential gradient along an insulator string, ensuring even voltage distribution and preventing localized electrical stress that could lead to flashover or breakdown.
Yes. HIGHV offers full customization based on design drawings, material specifications, and application requirements for all corona shielding products.
We primarily use high-purity aluminum alloys for their conductivity, lightweight, and corrosion resistance. Copper is also available for specific shielding covers upon request.
Have questions about our corona rings or shielding solutions? Reach out to us for expert support and custom quotes.
Wuxi Office: 2. Xiangjiang North Road, Xinwu District, Wuxi City, China
Yangzhou Office: Feida Road, Jiangdu District, Yangzhou City, China
Email: [email protected], [email protected]
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