Arrester's scope of application

AC gapless metal oxide surge arresters are used to protect the insulation of AC power transmission and transformation equipment from lightning overvoltage and overvoltage. Suitable for overvoltage protection of transformers, transmission lines, distribution boards, switch cabinets, power metering boxes, vacuum switches, shunt compensation capacitors, rotary motors and semiconductor devices.

Arrester characteristics and principles

AC gapless metal oxide surge arresters have excellent nonlinear volt-ampere characteristics, good response characteristics, no freewheeling, large flow capacity, low residual voltage, strong overvoltage suppression ability, stain resistance, anti-aging, free from altitude constraints, Simple structure, no gap, tight seal, long life and other characteristics.

The arrester exhibits a high resistance state under the normal system operating voltage, and only the microampere level current passes through. Under the effect of over-voltage and large current, it exhibits low resistance, which limits the residual voltage across the arrester