Patents by Inventor Honggang Han

Honggang Han 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).

  • Device and method for degassing on-load tap-changer of transformer for convenient on-site operation
    Patent number: 11759729
    Abstract: A device and method for degassing an on-load tap-changer (OLTC) of a transformer for convenient on-site operation. The degassing device includes an OLTC. The OLTC is respectively connected with an oil suction pipe and an oil injection pipe. One end of the oil suction pipe extends to the inside bottom of the OLTC, and the other end of the oil suction pipe extends to the outside of the OLTC to connect with an oil suction and degassing device. One end of the oil injection pipe extends to an upper part inside the OLTC, and the other end of the oil injection pipe extends to the outside of the OLTC to connect with a vacuum oil injection device. The present disclosure has the advantages of convenient on-site operation, excellent degassing effect, simple structure and convenient installation, reduces degassing time and manpower and investment in maintenance, and improves degassing quality.
    Type: Grant
    Filed: December 30, 2020
    Date of Patent: September 19, 2023
    Assignee: State Grid Liaoning Electric Power Research Institute
    Inventors: Yuxiao Zhou, Lu Liu, Honggang Han, Xuchen Lu, Jianhong Kong, Defu Wei, Tie Guo, Hao Chen, Yang Liu, Nan Wang, Zijian Zhao, Shiqing Wang, Chang Liu, Dawei Jiang, Yue Gao
  • DEVICE AND METHOD FOR DEGASSING ON-LOAD TAP-CHANGER OF TRANSFORMER FOR CONVENIENT ON-SITE OPERATION
    Publication number: 20220203266
    Abstract: A device and method for degassing an on-load tap-changer (OLTC) of a transformer for convenient on-site operation. The degassing device includes an OLTC. The OLTC is respectively connected with an oil suction pipe and an oil injection pipe. One end of the oil suction pipe extends to the inside bottom of the OLTC, and the other end of the oil suction pipe extends to the outside of the OLTC to connect with an oil suction and degassing device. One end of the oil injection pipe extends to an upper part inside the OLTC, and the other end of the oil injection pipe extends to the outside of the OLTC to connect with a vacuum oil injection device. The present disclosure has the advantages of convenient on-site operation, excellent degassing effect, simple structure and convenient installation, reduces degassing time and manpower and investment in maintenance, and improves degassing quality.
    Type: Application
    Filed: December 30, 2020
    Publication date: June 30, 2022
    Inventors: Yuxiao Zhou, Lu Liu, Honggang Han, Xuchen Lu, Jianhong Kong, Defu Wei, Tie Guo, Hao Chen, Yang Liu, Nan Wang, Zijian Zhao, Shiqing Wang, Chang Liu, Dawei Jiang, Yue Gao