AC Zinc Oxide Varistor Block for 500kv Surge Arrester

AC Zinc Oxide Varistor Block for 500kv Surge Arrester image

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Quick Details

Product Name:

AC Zinc Oxide Varistor Block for 500kv Surge Arrester

Model NO.:

D13.6

Brand:

L&R

Material:

ZnO

Shape:

Column

Operation Voltage:

High Voltage

Size:

Small

Application:

Power Plants

Installation:

Tandem Arrester

Structure:

Zinc Oxide Arrester

Type:

Power Source Arrester

Lightning Arrester:

500kv

Trademark:

L&R or according to customer's requirement

Transport Package:

Export Neutral Carton Outside Packing

Origin:

Wenzhou, Zhejiang

Product Details

Metal Oxide Varistor is the core of the arrester,which main component is Zinc Oxide and with a small quantity of bismuth oxide,Silicon.Oxide,
cobalt.oxide,nickel.oxide fluoride oxide,manganous carbonate,antimony oxide and other gleam of additive and made with high temperature.
Metal Oxide Varistor’s microstructure mainly constitute of Zinc Oxide grain,grain boundary layer and Chienshih phase. Ard its electric
conduction principle lies that Zinc Oxide grain has good electro conductibility, and the voltage to the Zinc Oxide is almost act on high resistant
grain boundary layer. Varistor’s nonlinearity mainly comes from grain boundar layer (the main ingredient is bismuth oxide) Chienshih phase
scattered throughout the grain boundary layer which is the multiple oxide of Zinc Oxide and bismuth oxide. Its function lies in restraining the
growing of Zinc Oxide grain to make the better nonlinearity.

Metal oxide resistor for 500kV arrester

Type	Dimension mm			D.C.U 1mA voltage kV	0.75 U 1mA Leakage current μA	20kAResidual voltage ratio U20kA/ U1mA	Current impulse withstand A		Non-linear ocefficient 10μA~1mA	Ageing test 115ºC,1000h
Type	Out Diameter	Inside Diameter	High	D.C.U 1mA voltage kV	0.75 U 1mA Leakage current μA	20kAResidual voltage ratio U20kA/ U1mA	2ms Rectangular	4/10μsHigh current	Non-linear ocefficient 10μA~1mA	Ageing test 115ºC,1000h
D10.5	105±1	26±1	22.5±0.5	4.0~4.8	20	1.76	1500	100	12	Chargeability 85% Kct≤1.2
D13.6	136±1	26±1	22.5±0.5	4.0~4.8	20	1.70	2000	100	10	Chargeability 85% Kct≤1.2

Our products have being in service on electrical networks of more than more than 20 countries from 2005.
We had supplied our products and services to the below customers:
CHINESE STATE GRID,KENYA KPLC & REA,UGANDA REA & UMEME,TANZANIA TANESCO,GHANA ECG,SOUTH AFRICA ESKOM & ARB,NIGERIAL NEPA,COTE D’IVOIRE CI-ENERGIES,JORDAN EDCO & NEPCO,OMAN PDO,VIETNAM EVN,MEXICO IUSA,ECUADOR CELEC,NEPAL NEA,
……….
Here, We look forward to your joining.
Our factory had obtained ISO9001, ISO14001, OHSAS 18001, and almost of our products had been tested by CNAS certificated Laboratory, for example KEMA, Chinese National Lab, and etc
What can we do for you?
1) Good quality guarantee (2 years).
2) Competitive Price (Factory direct price).
3) Agent service in all the world.
4) On time delivery .
5) We offer sample for free.
6) Professional Technology .
7) Quality Control through the whole Manufacturing process.

a. Check the material before the production .
b. Have the random inspection during the production .
c. Make the 100% inspection before the shipment

We are China AC Zinc Oxide Varistor Block for 500kv Surge Arrester manufacture and supplier,You can get more details with Email,you will get cheap price or factory price.

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