High Voltage Zinc Oxide Lightning Arrester

SanGao High Voltage Zinc Oxide Lightning Arrester is a key protective device used to safeguard power system equipment from damage caused by lightning overvoltage and operational overvoltage. Its core component adopts a zinc oxide varistor. Compared with the traditional silicon carbide arrester, this Polymeric Zinc Oxide Lightning Surge Arrester changes the volt-ampere characteristics of the arrester, enhances the overvoltage conduction capacity, and fundamentally alters the characteristics of the arrester. It has significant advantages such as fast response speed, large current carrying capacity, stable protection performance, long service life and easy maintenance.

This SanGao high-quality High Voltage Zinc Oxide Surge Protection Lightning Arrester designed has provided reliable guarantees for the energy market for decades.     It is widely applied to overvoltage protection in substations, transmission lines, power plants and various electrical equipment.

Advantages of high-quality innovative rubber Insulators

The rubber insulators used in high voltage zinc oxide arresters (especially the composite outer jacket based on liquid silicone rubber LSR) have significant advantages in terms of materials and production processes. The materials have the following advantages:

●Prevent polymer breakdown under various types of overvoltage, including lightning and operational pulses.

●Prevent the formation of conductive pathways along the surface of silicone rubber and reduce arcing.

●Liquid silicone rubber can achieve low-pressure molding process and accelerate the filling speed of the mold cavity.

●The persistent hydrophobicity, UV stability, and low flammability ensure protection against the external environment.

●Easy to operate and can clean finished equipment.

●High elasticity silicone rubber can withstand environmental conditions, physical pressure, and human damage.

How does a high-voltage lightning arrester work?

Metal oxide varistor (MOV) surge arrester consists of a series of metal oxide varistor blocks. These MOV blocks act like voltage controlled switches, serving as insulators isolated from the line voltage. Once the voltage borne by the lightning arrester exceeds its reference voltage, the metal oxide varistor (MOV) will conduct. Due to the highly nonlinear nature of MOVs, once the voltage drops below the reference voltage, conduction will terminate.

Product Details

This is a High voltage surge protector for power distribution

The rated voltage of the distribution surge protector is 1 to 36 kV.

The distribution levels include light, ordinary, and heavy.

Heavy duty protectors include column type lightning arresters.

Distribution surge protectors can also be used as transformer oil bottom lightning arresters, cabinet mounted lightning arresters, and elbow type lightning arresters.

High Voltage Zinc Oxide Lightning Arrester is used for low lightning strike applications, heavy-duty lightning arresters are used for high lightning strike applications, column type lightning arresters are used for distribution lines from overhead to underground, and Evolution lightning arresters can be used for all overhead applications.

Column type lightning arresters are used to limit voltage surges on underground cables and equipment. Open point lightning arresters can prevent surge reflection or voltage doubling.