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

Haixia Yang

Qing Li

Liangliang Nie

Yakang Zhao

Xuan Xie

Chang Xiao

Xiangdong Liu

Yalin Jia

Dongyang Hu

Jun Jiang

Wenhan Huang

Minghao Huang

Pengchao Qi

Peng Ling

Yu Gong

Mingxuan Yang

Yaxiong Yu

Jialiang Yu

Yanhong Liu

Na Zhang

Dejiang Hu

Haonan Chen

Shidi Tao

Yifeng Huang

Zhao Wu

Xubin Chen

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

Haixia Yang