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

Dejiang Hu

Qing Li

Minghao Huang

Peng Ling

Dongyang Hu

Chang Xiao

Wenhan Huang

Liangliang Nie

Xiangdong Liu

Haixia Yang

Yalin Jia

Yakang Zhao

Jun Jiang

Yanhong Liu

Shidi Tao

Na Zhang

Yifeng Huang

Xubin Chen

Yu Gong

Xuan Xie

Pengchao Qi

Haonan Chen

Yuanfei Chen

Yuxi Wu

Yu Peng

Ying Wang

A dynamic-balance test method for a rigid rotor includes: acquiring a counterweight influence coefficient library, initial vibration swing data and an initial vibration vector; determining an initial test weight mass and an initial test weight phase according to the initial vibration swing data and the counterweight influence coefficient library, and triggering a speed increase test according to the initial test weight mass and the initial test weight phase to obtain a target vibration vector; determining a target configuration influence coefficient according to the initial vibration vector, the target vibration vector and the initial test weight mass; calculating a residual vibration swing value; and determining a target test weight adjustment scheme according to the residual vibration swing value, a rotor operation vibration standard, a target test weight mass and a target test weight phase.

Dynamic-balance test method and apparatus for rigid rotor, device, and medium

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

Dejiang Hu