Changzhou Wellyun Electrical Co., Ltd. is a private scientific and technological enterprise, as well as a technological innovation oriented enterprises in Jiangsu China.

The company has more than 10 patents for invention，utility models and software copyright.

Wellyun focuses on R& D, production and sales of full set of winding performance test instruments, some insulation materials, construction machinery equipment and accessories and other electrical products.

Wellyun has obtained IS09001 quality management system certification. The Insulating sleeve product has obtained UL certification of USA.

Wellyun collaborates with Chinese-GermanInstitute for Applied Engineering (CDAI) of Zhejiang University of Science andTechnology on the key areas of electrical automation management technology innovation, professional test management research and development and standardization.

Wellyun products are exported to Korea, Thailand, Indonesia, Malaysia, India, Saudi Arabia, Vietnam, Taiwan and other countries and regions.

Wellyun test instruments are widely used by national, provincial andmunicipal Quality and technical supervision testing centers and domestic andforeign well-known winding Enterprises.

The product "High-FrequencyPulse Corona Resistance Tester", which is independently developed byWellyun, had obtained high-tech products recognition by Jiangsu Province andthe city of Changzhou, as well as the recognition of the first major equipmentand key components by Changzhou.Asan advanced technical representative of the industry, Wellyun has been repeatedlyinvited to participate in the drafting and revision of national standards. As the main drafting unit and also the only test instrument manufacturer of formulating the standard in China, Wellyun participated in the compilation of GB/ T4074.21-2018 "Winding Wire Test Methods Part 21: Electrical endurance under high frequency voltage impulses".

In addition, Wellyun participated in the formulation of GB/T 22566, GB/T23642 and GB/T 21707, etc.

Wellyun initiate "intelligent management system for winding wirequality detection" was successfully developed and put into market in 2014.It changed the traditional way of testing and management. All data were transmitted by wireless, which realizing multi-platform sharing of test data，as well as realizing quality warning by data analysis;seamless connecting with users' existing ERP and MES systems. The system is safe, efficient and convenient, which also get excellent feedback.

We adhere to the tenet of "quality, integrity, innovation". With the business strategy of"small and specialized, small and refined" and professional advantages；we focus on the technology research and development, firmly grasps the pulse of the market, and constantly updates the products; with meticulous spirit of integration of years of practical experience, strive to achieve the goal "Wellyun manufacturing, customersatisfaction", strive to be stronger and higher in the competition, dedicated to provide customers with high quality products and efficient service.