6kV Station Type Zinc Oxide Arrester HY5WZ-10/27 - Composite Housing Overvoltage Protection

Product Overview

6kV station type zinc oxide arrester HY5WZ-10/27 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 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 6kV station type zinc oxide arrester HY5WZ-10/27 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.

HY5WZ-10/27 6kV station type 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

6kV station type zinc oxide arrester HY5WZ-10/27 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".

Main Technical Parameters

Arrester Model	System Rated Voltage kV	Arrester Rated Voltage kV	Continuous Operating Voltage kV	DC 1mA Voltage kV	Lightning Impulse Residual Voltage kV	Switching Impulse Residual Voltage kV	Square Wave Current Capacity A	High Current Impulse Withstand kA	0.75U1mA Leakage Current μA	Material	Application
HY5WZ-7.6/27	6	7.6	4.0	14.4	27.0	31.0	200	65	50	Composite Housing	Distribution Type
HY5WZ-10/27	6	10	8.0	14.4	27.0	31.0	200	65	50	Composite Housing	Distribution Type
HY5CZ-7.6/24	6	7.6	-	-	24.0	27.0	200	65	-	Composite Housing	Distribution Type

Outline Dimensions