AC Zinc Oxide Varistor for 66kv Surge/Lightning Arrestor/Arrester D7
AC Zinc Oxide Varistor for 66kv Surge/Lightning Arrestor/Arrester D7 image
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Quick Details
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.
Parameters
Type | Dimension mm | D.C.U 1mA voltage kV |
0.75 U 1mA Leakage current μA |
5kA Residual voltage ratio U5kA/ U1mA |
Current impulse withstand A | Non-linear ocefficient 10μA~1mA |
Ageing test 115ºC,1000h |
|||
Out Diameter |
Inside Diameter |
High | 2ms Rectangular | 4/10μsHigh current | ||||||
D5-2 | 52±1 | 21±0.5 | 4.6~5.3 | 15 | 1.63 | 450 | 100 | 18 | Chargeability85% Kct≤1.2 |
|
D6 | 61±1 | 21±0.5 | 4.6~5.3 | 15 | 1.60 | 700 | 100 | 17 | ||
D7 | 72±1 | 26±1 | 22.5±0.5 | 4.0~5.2 | 15 | 1.58 | 800 | 100 | 16 |
Certificate
Our product are fully comply with the standard such as IEC, BS, ANSI and other well recognized standard
and requirement.
We strongly believe in the importance of maintaining high quality in all our products. We have brought in
advanced quality tests as to ensure strict quality control before delivery. We have adopted advanced date
management system to monitor and to supervise all individual process through our whole production lines
of the product with traceabledata in details and recorded at all level.
We are the manufacturer that is special in insulators, zinc oxide varistors, surge arresters, dropout fuse, air
break switch, load break switch, isolator switch, line hardwire, ABC cable accessories, meter box and so on.
We also have a professional team with 15 years of experience and also offer OEM&ODM service.
If you are interested in our products, please feel free to Contact with us, we will try our best to meet your
demand. We are seeking sole agent in all the world, we wish we can grow and develop together with you.
Company Introduction
There are FOUR companies in L&R group, ZHEJIANG LAWRENCE ELECTRIC CO., LTD, whose main produce
are line hardware, cable accessories and etc; JIANGXI LAWRENCE ELECTRIC CO.,LTD, whose main produce
are guy grip, switch, and etc; ZHONGRUI ELECTRIC COMPANY, whose main produce are insulators, surge
arrester, dropout fuse and etc; YEUQING L&R IMP&EXP CO.,LTD, which is the international sale center.
Our customers
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 CIENERGIES,JORDAN EDCO & NEPCO, OMAN PDO,
VIETNAM EVN,MEXICO IUSA,ECUADOR CELEC,NEPAL NEA,……….
Here, We look forward to your joining.
PACKAGE:
1.We will make packing with customers’logo, details please contact us
Each product is packed with good quality package (wooden pallet, wooden box, and etc), completely protect products be
damaged on transit.
SHIPPING AND PAYMENTS
1. Express Air shipment and Sea shipment as customers’request
2. The ordered materials could be shipped in 15-30 working days after received PO depends on the quantity of the order.
3. The documents or samples could be shipped by Fedex,TNT,DHL and others, depending on size and weight of total order.
4 Putting the customer’s needs first.
5 On call,24 hours a day,7 days a week.
FAQ:
1. Q: Do you have a catalogue? Can you send me the catalogue to have a check of all your products?
A: Yes, We have product catalogue. Please contact us online or send an Email to sending the catalogue.
2. Q: I need your price list of all your products, do you have a price list ?
A: We do not have a price list of all of our products. Because we have so many items, and it is impossible to mark all of their
price on a list. And the price are always changing because of the producing and raw material cost. If you want to check any price of our products,
please feel free to contact us. We will send offer to you soon!
3. Q: I can’t find the product on your catalogue, can you make this product for me?
A: Our catalogue shows most of our products, but not all. So just let us know what product do you need. If we do not have it,
we can also design and make a new mould to produce it. For your reference, making an ordinary mould will take about 20-30
days.
We are China AC Zinc Oxide Varistor for 66kv Surge/Lightning Arrestor/Arrester D7 manufacture and supplier,You can get more details with Email,you will get cheap price or factory price.
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Tags: laurenceelectirc, Metal Oxide Varistor for Surge Arrester, Metal Oxide Varistor for Surge Arrestor, Zinc Oxide Varistor