500KV Extra High Voltage Surge Arrester , Porcelain Substation Type Zinc Oxide Lightning Arrester

500kV Extra-high Voltage Type A.C System Surge Arrester , Porcelain Substation Type Arrester

Description:

Product parameter:

Rated voltage: 444KV
Nominal discharge current: 20KA
Shed diameter: 412/380
Creepage distance: 17052mm
Height: 5824mm
Gross weight: 1355kg
High current impulse: 120KA
Lightning impulse withstand 1425KV
Switching impulse withstand: 1050/1175

Application:

The zinc oxide arrester is mainly used to protect distribution transformer,cable

connector and electrical equipment from being damaged by lightning impulse

voltage and operating over-voltage.

Hangzhou Yongde Electric Appliances Co.,Ltd 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 10-252kv outdoor high-voltage disconnecting switch.

Currently, our company employs 180 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 good 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 Sixteen million U.S Dollar, 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.