Shanghai Yongtao Yihu Electric Co., Ltd. is a professional manufacturer of transformer products, with perfect production equipment, precise testing equipment and a mature talent team.
The company focuses on the design and development, development and production, technical testing and after-sales service of transformer products, and can produce transformer products of various specifications on a large scale, and the products produced have undergone strict testing before leaving the factory.
With the further expansion of market demand and the increase of user personalized needs, the company will adhere to the enterprise spirit of "pragmatic refinement, unity and enterprising", adhere to quality-centered, and continuously deepen management and optimize product structure.
Yongtao Yihu strong electrical technology force and high degree of specialization, can develop various products in the market demand by themselves, and can undertake the development, design and manufacture of various non-standard transformer products according to user needs.
The company has gathered a group of engineering and technical personnel, sales personnel and management personnel who have been engaged in the industry for many years and have rich work experience and experience. Establish a perfect quality information transmission and after-sales service system to provide users with perfect services in all aspects at any time.
Intro：This zero sequence current transformer is suitable for earthing protection of the neutral point with non-valid earthing for the generator.the rated frequency 50Hz,the model of relay match the transformer is DD 11/60.when valid earthing fault during protection range,the secondary loop of transformer will generate the residual current. once the current arrive some value.The relay will start action.Comply with GB1208standard andIEC185.
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