Patents by Inventor Shixiang Zhao

Shixiang Zhao has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • 0.2Ss class special-type high-voltage measuring current transformer
    Patent number: 9431170
    Abstract: A 0.2Ss class special-type high-voltage measuring current transformer belongs to a field of current transformer. An iron core includes two kinds of “L”-shaped sheets with the same size, wherein a ratio of a long side to a short side of each “L”-shaped sheet is 3:2; a first kind of the “L”-shaped sheets are permalloy sheets (1) and a second kind of the “L”-shaped sheets are cold rolled silicon steel sheets (2); and required windings are wound on each side of the iron core. Sheets of the iron core of the current transformer include the permalloy sheets and the cold rolled silicon steel sheets, which improves performance of the iron core. Utilizing structural characteristics of the iron core of different materials, a fractional turn compensation of coils is formed, which realizes a precise measurement.
    Type: Grant
    Filed: August 2, 2013
    Date of Patent: August 30, 2016
    Assignees: JILIN PROVINCE ELECTRIC POWER RESERCH INSTITUTE, JILIN PROVINCE ELECTRIC POWER RESERCH INSTITUTE LTD., STATE GRID COMPANY
    Inventors: Shixiang Zhao, Ming Ao, Liwei Zhou, Jianrong Yang, Wenzhan Cai, Zhongbao Feng, Ping Ren, Junxin Zhao, Zhi Xia
  • 0.2Ss class special-type high-voltage measuring current transformer
    Publication number: 20150348704
    Abstract: 0.2Ss class special-type high-voltage measuring current transformer belongs to a field of current transformer. An iron core includes two kinds of “L”-shaped sheets with the same size, wherein a ratio of a long side to a short side of each “L”-shaped sheet is 3:2; a first kind of the “L”-shaped sheets are permalloy sheets (1) and a second kind of the “L”-shaped sheets are cold rolled silicon steel sheets (2); and required windings are wound on each side of the iron core. Sheets of the iron core of the current transformer include the permalloy sheets and the cold rolled silicon steel sheets, which improves performance of the iron core. Utilizing structural characteristics of the iron core of different materials, a fractional turn compensation of coils is formed, which realizes a precise measurement.
    Type: Application
    Filed: August 2, 2013
    Publication date: December 3, 2015
    Inventors: Shixiang Zhao, Ming Ao, Liwei Zhou, Jianrong Yang, Wenzhan Cai, Zhongbao Feng, Ping Ren, Junxin Zhao, Zhi Xia