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

Yalin Jia

Qing Li

Wenhan Huang

Liangliang Nie

Yakang Zhao

Chang Xiao

Xiangdong Liu

Dongyang Hu

Minghao Huang

Jun Jiang

Peng Ling

Haixia Yang

Yu Gong

Yanhong Liu

Xuan Xie

Na Zhang

Dejiang Hu

Shidi Tao

Yifeng Huang

Pengchao Qi

Xubin Chen

Yaxiong Yu

Mingxuan Yang

Jialiang Yu

Haonan Chen

Yuanfei Chen

Yuxi Wu

Yu Peng

Zhao Wu

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

A method of synchronization test of a generator set outlet switch apparatus includes that: prior to a synchronization grid-connected closing of an outlet switch apparatus of a target generator set, a wiring phase sequence of a synchronization apparatus is determined to be correct; then three-phase closings of the outlet switch apparatus are determined to be synchronous; two-side voltage waveform data at a closing moment of the outlet switch apparatus is measured and recorded; and a simulated synchronization closing quality coefficient of the outlet switch apparatus of the target generator set is determined according to the two-side voltage waveform data, and a synchronization closing performance of the outlet switch apparatus of the target generator set is evaluated according to the simulated synchronization closing quality coefficient.

Generator set circuit breaker apparatus synchronization test method and apparatus, 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

Yalin Jia