Key Specification/special feature
Brand: YONGDE
Type: D31H24
Material: Zinc oxide
Demensions: Diameter 31 mm, height 24mm
D. C reference voltage: 5.3KV
Leakage current at 0.75 time D. C reference voltage: <30μ A
Rated voltage: 3.75KV
Continuous operating current: 3KV
Long durationg(2ms rectangular) current impulse withstand: 250A
4/10μ S high current impulse withstand: 65KA
Residual voltage at nominal disscharge current:
9.1KV/5KA
10.3KV/10KA
11.3KV/20KA
Accelerating aging coefficicent: <1.0
| Type | D31 Metal Oxide Varistor(MOV) |
| Specification mm | D31*24 |
|
| Voltage Gradient V/mm | 210~235 |
|
| Square Wave Test Valve | 200 |
|
| 4/20μ S High Current Withstand kA | 65 |
|
| 8/20μ S high current withstand kA | 9.6 |
| DC1mA Refering Voltage kV | 5.3 |
|
| 0.75Times U1mA Leak current μ A < | 10 |
|
| Residual Votage Ratio | 1.78 |
|
| Aging Load Point Ratio% | 85 |
|
our service:
1. your inquiry related to our products or prices will be replied in 24 hours.
2. well-trained and experienced staffs answer all your questions in fluent English
3. OEM & ODM, any you customized we can help to design and put into products
4. distributoershio are offered for your unique design and some of our current model
5. protection of your sale areas, ideas of design and all your private information
buy recommendation:
1. our all items are 100% authentic; pls provide all details of the address before purchase, so we can calculate the shipping deicounts and the best transportation.
2. according to your requirements, differents specifications of the items can be mixed shipments and lower freight.
3. only wholesale, if require samples or have any questions or suggestions, pls feel free to contact us.
quality & price:
1. we sell items with top quality because we want to keep every customer as our long-term business partner.
2. we set competitive price because we need to attact buyers to this new store.
3. we ship your items on time after you place orders.
Hangzhou Yongde Electric Appliances Ltd Company was founded in 1993. As a high-new-tech enterprise in Zhejiang province, it is about 15 kilometers from downtown area.
Our Company is one of the recommended model companies for national power grid construction and transformation. We specialized in manufacturing of 0.22-500kV metal oxide arrester of all types and applications and 10-220kV outdoor high-voltage disconnecting switch.
Currently, our company employs 150 Staffs, with 23 technically-titled and 15 senior technical title holders, who organize a high standard scientific research and development team. Every year we invest many research funds for new product development and acquiring advanced production and testing equipment each month.
Through developing new generations of high-tech products, the technology and production level maintains a leading position in the national level.
The newly developed GW37, GW38 series outdoor high-voltage disconnecting switch have been proved by authorities, which has achieved ideal operating results and won high praise from users.
Our company has a variety of CNC equipments of over a hundred units. In 2001, our company passed the ISO9001 quality inspection, and in August 2010 adopted itself to the ISO9001-2008 version of reinspection.
The annual production capacity of the company is about 6, 000, with well equipped means of inspection for raw materials and purchased spare parts. Each procedure in the manufacturing process is under strict control and supervision. The inspection equipments and instruments are advanced and reliable which effectively guaranteed our product quality.
Yongde holds the quality policy of being 'the technical forerunner, supreme in quality, supremacy of customers, and innovative progressing', so that our products and services successfully satisfied our users. We warmly welcome friends and customers from home and abroad to contact for exchanges and corporations. We also welcome feedbacks from our user communities.
