Surge arrester 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 operating overvoltage damage. It is suitable for over-voltage protection of transformers, power transmission lines, power distribution panels, switch cabinets, power metering boxes, vacuum switches, parallel compensation capacitors, rotating electrical machines and semiconductor devices. Taporel Electrical Insulation Technology Co., Ltd. is a great company that can provide you with Great Surge Arrester. Surge arresterâ??s Features and principles The AC gapless metal oxide arrester has excellent nonlinear volt-ampere characteristics, good response characteristics, no freewheeling, large current capacity, low residual voltage, strong suppression of overvoltage, pollution resistance, anti-aging, and no altitude constraints. Simple structure, no gap, tight sealing, long life and other characteristics.