zinc oxide electric lightning arrester 3.8kv 1.Model:YHW 2.System Nominal Voltage:3~6KV 3.GB 11032-2000 JB/T8952-2005.
zinc oxide electric lightning arrester 3.8kv
Brief introduction of zinc oxide electric lightning arrester 3.8kv
Electrical porcelain lightning arrester
Zinc-oxide (ZnO) surge arrester is one of the important apparatus for GIS in the power system and its normal running has significant influence on the performance and reliability of GIS.
The Metal ZnO Arresters (MOA) are important over-voltage protection device. They are widely used in electric power system due to their excellent nonlinear and high surge absorbing capability. And it is one of the most important equipments in electric power system. Whether its running status is good or not directly affects other equipments in sub stations.
Using the ZnO surge arrester to prevent the shunt capacitor from overvoltage is one of the most efficient and reliable measures, and in many cased it is a necessity.
Metal Oxide Surge Arrester (MOA) is one of the most important equipments in electric power system. Whether its running status is good or not directly affects other equipments in sub stations.
Using the ZnO surge arrester to prevent the shunt capacitor from overvoltage is one of the most efficient and reliable measures, and in many cased it is a necessity.
Working Principle of porcelain lightning arrester :
Zinc Oxide Arrester is the most advanced voltage protect equipment nowadays in the whole world.
Cause of the core parts are made of zinc oxide and many other metal oxide, comparing with traditional arresters, the volt-ampere characteristics of resistor disc have been improved much, meantime the through-current capacity have been improved too, thus the zinc oxide arrester brought fundamental change of arresters.
In normal working, the current through arrest is only several microamp, but when suffer overvoltage, the arresters’ nonlinearity volt-ampere characteristics will come into play, the current through arrester will increased to thousands ampere in a moment, the arrester will be in conducting state, discharge the overvoltage, and thus protected the power distribution equipment from damage.
Application of porcelain lightning arrester :
Zinc Oxide Arrester will protect the power equipment in power system from damage of atmospheric overvoltage and switching overvoltage.
Working condition:
1. Environment temperature: -40--+40 degree
2. sea level elevation:<1000m
3. 48HZ<supply frequency<62HZ
4. Power frequency voltage should not be more than continuous running voltage
5. Max wind speed should be less than 35m/s
6. Earthquake intensity should be less than 7 degree
7. If used in contamination area, should be noted in advance.
Manufacturing standard:
Chinese National Standard
Accord with Chinese national technical requirements GB 11032-2000 JB/T8952-2005, JB/T 10497-2005, DL/T815-2002
Parameters of porcelain lightning arrester :
Pictures of porcelain lightning arrester :
Photos of YHW Surge Arrester Low Voltage
zinc oxide electric lightning arrester 3.8kv
