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Description:
Zinc oxide varistor is the core of the arrester,which main component is Zinc Oxide and with a small quantity of bismuth oxide, fluoride oxide, manganous carbonate, antimony oxide and other gleam of additive and made with high temperature.
Metal oxide Varistors microsturcture mainly constitute of Zinc Oxide grain, grain boundary layer and chienship phase. And 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. Varistors nonlinearity mainly comes from grain boundary layer(the main ingredient is bismuth oxide) chienship 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.
Features:
Large 2000μs rectangular impulse absorption capacity
Large 4/10μs high current impulse withstand
Hangzhou Yongde Electric Appliances Co.,Ltd was founded in 1993. We are one of the recommended model companies for national power grid of China. Our company is the professional manufacturer of 0.22KV-500KV metal oxide surge arresters, Zinc oxide varistors, 10-220KV outdoor disconnectors, earthing switches, composite insulators and fuse cutouts.
Yongde sticks to the quality policy of "being the technical forerunner, supreme in quality, supremacy of customers, and innovative progressing", so that our products and services successfully satisfy our users. We warmly welcome friends and customers from at home and abroad to contact us for exchange and corporation. We also welcome the feedback from our users.
Production Lead Time & Quality Guarantee:
1. Sample deliery time is about 2-3 days;
big order quantity is about 30-35 days after we receive 30%~50% deposit from you.
Generally, it takes 4 working days by DHL/UPS, and 7-10 days by EMS.
2. 12 months' warranty period. 20 years' quality guarantee period
With ISO9001:2008approvals.
Payment Method:
Focusing on long-term cooperation, YongDe keeps customers in mind and helps them save time, energy and cost as much as possible .
We support T/T,L/C,WESTEN UNION, PayPalpayment terms .
If you have cash flow stress. We also provide credit sale through OneTouchor other third company assess the risk.
If you have the alibaba credit card we also can provide this service.
Customer Services:
Our salesmen will reply your inquiry within 24 hours. Any order is welcome. If you like to be our agent in your country, we can give you any support on the technique & other aspects.
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