| Issue |
E3S Web Conf.
Volume 165, 2020
2020 2nd International Conference on Civil Architecture and Energy Science (CAES 2020)
|
|
|---|---|---|
| Article Number | 06031 | |
| Number of page(s) | 4 | |
| Section | Electrical and Power Engineering | |
| DOI | https://doi.org/10.1051/e3sconf/202016506031 | |
| Published online | 01 May 2020 | |
Failure Analysis of Weld Cracking in External Cold Water Pipeline of Condenser in Converter Station
1 State Grid Hunan Electric Power Company Limited Research Institute, Changsha 410007, China
2 China Electric Power Research Institute, Beijing, 100192, China
3 State Grid Zhejiang Electric Power Research Institute, Hangzhou, 410007, China
* Corresponding author: 279091498@qq.com
The cause of weld cracking in external cold water pipeline of condenser in a ±800kV converter station were analyzed by macro inspection, chemical composition analysis, hardness test, microstructure inspection, scanning electron microscopy and energy spectrum test methods.The results show that the main reason for the cracks is that the material and manufacturing process are not qualified, and the welding process is not good. Corresponding control measures are put forward to avoid similar failures from happening again.
© The Authors, published by EDP Sciences, 2020
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