HY5WD-7.6/18.7 6kV Generator Zinc Oxide Arrester Composite Housing Distribution Type

Product Overview

HY5WD-7.6/18.7 6kV generator zinc oxide arrester produced and sold is currently the best type of overvoltage protection device, widely used in power generation, transmission, transformation and distribution systems to protect the insulation of electrical equipment from overvoltage damage. Its core components adopt excellent "nonlinear volt-ampere" characteristics, greatly improving overvoltage current carrying capacity, thus bringing fundamental changes to arrester characteristics. Under normal operating voltage, the current through the 6kV arrester is only microampere level. When subjected to overvoltage, due to the nonlinearity of zinc oxide resistance, the current through the arrester instantly reaches thousands of amperes, and the arrester is in a conducting state, releasing overvoltage energy, thereby effectively limiting overvoltage damage to transmission and transformation equipment.

Organic housing generator zinc oxide arrester is a scientific research achievement combining organic insulation materials with traditional porcelain housing metal oxide arrester technology advantages. It not only has the advantages of porcelain housing metal oxide arresters, but also has good electrical insulation performance, high dielectric strength, anti-tracking, anti-corrosion, heat resistance, cold resistance, aging resistance, explosion-proof, hydrophobicity, and good sealing performance.

HY5WD-7.6/18.7 6kV generator zinc oxide arrester is suitable for AC 220kV and below power generation, transmission, transformation and distribution systems, used to limit the amplitude of lightning and system internal operating overvoltages to specified levels, and is the basic equipment for system insulation coordination. At the same time, this product cannot be used to limit resonance overvoltage; system resonance suppression requires other methods.

Applicable Standards

This product model is compiled according to JB/T8459-1996 "Arrester Product Model Designation Method". Gapless products comply with GB11032-2000 "AC Gapless Metal Oxide Arresters"; gapped products comply with JB/T9672-2005 "Metal Oxide Arresters with Series Gaps". Important parameters and configuration methods not clearly defined in the above standards shall be modified and implemented according to DL/T620-1997 "Overvoltage Protection and Insulation Coordination of AC Electrical Installations". This 6kV arrester is strictly produced in accordance with the above standards.

Main Technical Parameters

Outline Dimensions