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| Chinese National Standard Category: Synchronous machine |
| English Title: | Modal test analyses and natural frequency measurement methods of large turbo-generators on stator end windings and evaluation criteria |
| Chinese Title: | 大型汽轮发电机定子端部绕组模态试验分析和固有频率测量方法及评定 |
| Standard No.: | JB/T 8990-1999 |
| Category No.: | K21 |
| Issued by: | 国家机械工业局 |
| Issued on: | 1999-8-6 |
| Implemented on: | 2000-1-1 |
| Status: | abolished |
| Superseded by: | |
| Superseded on: | |
| Abolished on: | 2023-11-03 |
| Superseding: | |
| Word Count: | 3000 words |
| Similar Standards: | GB/T 7894-2023 GB/T 12974.2-2023 GB/T 43188-2023 GB/T 27744-2021 GB/T 40294-2021 GB/T 1029-2021 GB/T 7409.2-2020 GB/T 21663-2019 GB/T 22711-2019 GB/T 7064-2017 GB/T 12974.2-2014 GB/T 7894-2009/XG1-2015 T/CEEIA 229-2015 T/CEEIA 230-2015 GB/T 12974-2012 GB/T 27989-2011 GB/T 27744-2011 JB/T 8667.1-2011 JB/T 8981-2011 GB/T 26680-2011 |
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