The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Feb. 06, 2024
Filed:
Oct. 27, 2022
Csg Power Generation Co., Ltd. Maintenance and Test Company, Guangzhou, CN;
Xiangdong Liu, Guangzhou, CN;
Liangliang Nie, Guangzhou, CN;
Qing Li, Guangzhou, CN;
Minghao Huang, Guangzhou, CN;
Peng Ling, Guangzhou, CN;
Yalin Jia, Guangzhou, CN;
Yakang Zhao, Guangzhou, CN;
Jun Jiang, Guangzhou, CN;
Shidi Tao, Guangzhou, CN;
Wenhan Huang, Guangzhou, CN;
Xubin Chen, Guangzhou, CN;
Chang Xiao, Guangzhou, CN;
Xuan Xie, Guangzhou, CN;
Haonan Chen, Guangzhou, CN;
Pengchao Qi, Guangzhou, CN;
Dongyang Hu, Guangzhou, CN;
Haixia Yang, Guangzhou, CN;
Dejiang Hu, Guangzhou, CN;
Yanhong Liu, Guangzhou, CN;
Na Zhang, Guangzhou, CN;
Yifeng Huang, Guangzhou, CN;
CSG POWER GENERATION CO., LTD. MAINTENANCE AND TEST COMPANY, Guangzhou, CN;
Abstract
Provided is a method for determining insulation thermomechanical deterioration of a VPI wire rod of a pumped storage power generator motor. The method includes: periodically performing a cold-heat cycling test on a wire rod, and performing an insulation dielectric dissipation factor testing and a result interpretation of the insulation dielectric dissipation factor testing before and after each period to obtain corresponding data; in response to determining the interpretation result as the data being qualified, continuing to perform the cold-heat cycling test; and in response to determining the interpretation result as the data being unqualified, striking the wire rod with a copper hammer, and using an acoustic acquisition and analysis system to perform signal processing to determine spectral characteristics in a thermomechanical deterioration state as a deterioration criterion.