| Issue |
E3S Web Conf.
Volume 165, 2020
2020 2nd International Conference on Civil Architecture and Energy Science (CAES 2020)
|
|
|---|---|---|
| Article Number | 06052 | |
| Number of page(s) | 4 | |
| Section | Electrical and Power Engineering | |
| DOI | https://doi.org/10.1051/e3sconf/202016506052 | |
| Published online | 01 May 2020 | |
Failure Analysis of Clamp Crack on TA Equipment in Converter Station
1 State Grid Hunan Electric Power Company Limited Research Institute, Changsha 410007, China
2 Hunan Xiangdian Boiler Pressure Inspection Center Co., Ltd, Changsha 410007, China
3 State Grid Hunan Electric Power Company Limited Yueyang Power Supply Company, Changsha 414100, China
4 State Grid Hunan Electric Power Company Limited Maintenance Company Changsha 410004, China
* Corresponding author: 279091498@qq.com
Through macro inspection, chemical composition analysis, hardness test, tensile performance test, microstructure inspection and scanning electron microscope analysis, the causes of clamp crack on TA equipment in the 500kV AC filter field of the ± 800kV converter station were analyzed. The results show that improper selection of the manufacturing process of the equipment clamps will cause more micro-defects inside it, leading to poor mechanical properties and excessive internal stress, which are the main causes of cracking. Corresponding measures are put forward to improve the manufacturing quality of equipment clamps, which can avoid similar failures from happening again.
© The Authors, published by EDP Sciences, 2020
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