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

Haonan Chen

Qing Li

Yalin Jia

Peng Ling

Liangliang Nie

Wenhan Huang

Xiangdong Liu

Dongyang Hu

Jun Jiang

Haixia Yang

Yakang Zhao

Minghao Huang

Chang Xiao

Shidi Tao

Xuan Xie

Na Zhang

Dejiang Hu

Yifeng Huang

Pengchao Qi

Xubin Chen

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

Haonan Chen