Csg Power Generation Co., Ltd. Maintenance and Test Company

Xubin Chen

Qing Li

Xiangdong Liu

Yalin Jia

Pengchao Qi

Liangliang Nie

Peng Ling

Dongyang Hu

Xuan Xie

Yakang Zhao

Haixia Yang

Jun Jiang

Chang Xiao

Minghao Huang

Wenhan Huang

Shidi Tao

Na Zhang

Dejiang Hu

Haonan Chen

Yifeng Huang

Yanhong Liu

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.

Method for determining insulation thermomechanical deterioration of VPI wire rod of pumped storage power generation motor

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Guangzhou, China

Xubin Chen