Thyrite Lightning Arrester
The Thyrite Lightning Arrester is a high-performance lightning surge protection device designed for critical electrical power system protection. Built with thyrite arrester discs, it provides reliable overvoltage protection in high-voltage networks.
This nonlinear resistance lightning arrester operates based on inverse resistance characteristics. The core element is a non-ohmic conductor arrester made from ceramic-based surge arrester material, engineered for fast response and stable performance.
The arrester includes:
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Porcelain casing for mechanical strength and environmental durability
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Internal metal-sprayed ceramic discs with nonlinear electrical component behavior
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A built-in spark gap mechanism for controlled electrical arc discharge
During normal conditions, the air gap lightning arrester remains inactive, ensuring full electrical insulation protection. Upon a voltage spike, the spark gap triggers and allows surge energy to pass through the thyrite disc, directing electrical fault current diversion safely to ground.
Key benefits:
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Suitable for use in substations and transmission lines
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Conforms to IEC and ANSI standards
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Ideal for voltage surge suppression across industrial and commercial sectors
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Reliable porcelain housed lightning arrester structure
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Long service life with minimal maintenance
Choose our voltage-dependent resistor arrester for efficient and durable lightning protection in your high-voltage installations.
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SUNJ offers a wide range of solutions, including aerial overhead line fittings, ABC accessories, polymer insulators, lightning Arresters, Drop-out Fuse Cutouts, Disconnect Switch, Auto-iRecloser, SF6 Gas Circuit Breaker. Designed for reliability and performance, our products support power transmission, equipment protection, and grid automation.