Patents Assigned to STATE GRID HUBEI ELECTRIC POWER RESEARCH INSTITUTE
  • Patent number: 11397208
    Abstract: An infrared zero value diagnosis method and system for a porcelain insulator string are provided.
    Type: Grant
    Filed: December 31, 2020
    Date of Patent: July 26, 2022
    Assignees: State Grid Hubei Electric Power Research Institute, Hunan University
    Inventors: Xueming Zhou, Danhui Hu, Xiaopo Mao, Jungang Yin, Jianjin Fu, Zhiqiang Feng, Yaodong Zhang, Zeqi Huang, Tianru Shi
  • Publication number: 20210055339
    Abstract: Provided are an insulation diagnosis and defect positioning method, apparatus and device for an insulated bus pipe, and a storage medium.
    Type: Application
    Filed: January 6, 2020
    Publication date: February 25, 2021
    Applicants: STATE GRID HUBEI ELECTRIC POWER RESEARCH INSTITUTE, STATE GRID CORPORATION OF CHINA
    Inventors: Wenpei Li, Ling Ruan, Rui Liu
  • Patent number: 9753079
    Abstract: A testing device for propagation characteristic of electromagnetic wave in gas insulated switchgear includes an ultrahigh frequency signal generator, a GIS testing chamber, an emitting antenna and a receiving antenna which are provided inside the GIS testing chamber. A detachable disc insulator is provided between the emitting antenna and the receiving antenna. Both terminals of a GIS testing chamber are sealed by polyurethane wave-absorbing sponge; the ultrahigh frequency signal generator is connected with the emitting antenna, and the receiving antenna is connected with a oscilloscope. A guide rod which is fixed by the disc insulator is provided in the GIS testing chamber. The present invention is capable of achieving testing propagation characteristic of partial discharge ultrahigh frequency electromagnetic wave signal of a gas insulated switchgear in a laboratory, so as to master attenuation characteristics of the partial discharge ultrahigh frequency electromagnetic wave signal.
    Type: Grant
    Filed: November 14, 2013
    Date of Patent: September 5, 2017
    Assignees: STATE GRID HUBEI ELECTRIC POWER RESEARCH INSTITUTE, CHINA ELECTRIC POWER RESEARCH INSTITUTE, XI'AN JIAOTONG UNIVERSITY, STATE GRID CORPORATION OF CHINA
    Inventors: Jun Chen, Jinbin Li, Jun Lu, Haiqiong Liu, Min Chen, Hao Wang, Jiangang Bi, Shuai Yuan, Yuan Yang, Junhao Li, Jianfeng Liang, Yanming Li
  • Patent number: 9257039
    Abstract: A method for detecting a time synchronization ability of the real-time measuring device based on a time variable is provided. On a premise that the real-time measuring device correctly receives time service signals, the method aims at detecting time synchronization signal application ability of the real-time measuring device, and involves a purely resistive loop comprising a value transferring device and a time controllable switch. The method, via a time synchronization performance thereof, relatively completely reflects the time synchronization signal application ability of the device within a value transfer requirement. The method is a development upon power station time synchronization time service signals and transmission accuracy detection and an improvement of power station time synchronization detection procedures. The method facilitates improving real-time analysis and monitoring abilities of a power station and a power grid to a primary device and a primary system.
    Type: Grant
    Filed: November 23, 2012
    Date of Patent: February 9, 2016
    Assignees: STATE GRID CORPORATION OF CHINA, STATE GRID HUBEI ELECTRIC POWER RESEARCH INSTITUTE
    Inventors: Hong Chen, Yongjun Xia, Yuehai Yu, Gang Hu, Yong Cai, Jin Wang, Qian Tao
  • Publication number: 20140240145
    Abstract: A method for detecting a time synchronization ability of the real-time measuring device based on a time variable is provided. On a premise that the real-time measuring device correctly receives time service signals, the method aims at detecting time synchronization signal application ability of the real-time measuring device, and involves a purely resistive loop comprising a value transferring device and a time controllable switch. The method, via a time synchronization performance thereof, relatively completely reflects the time synchronization signal application ability of the device within a value transfer requirement. The method is a development upon power station time synchronization time service signals and transmission accuracy detection and an improvement of power station time synchronization detection procedures. The method facilitates improving real-time analysis and monitoring abilities of a power station and a power grid to a primary device and a primary system.
    Type: Application
    Filed: November 23, 2012
    Publication date: August 28, 2014
    Applicants: STATE GRID HUBEI ELECTRIC POWER RESEARCH INSTITUTE, STATE GRID CORPORATION OF CHINA
    Inventors: Hong Chen, Yongjun Xia, Yuehai Yu, Gang Hu, Yong Cai, Jin Wang, Qian Tao