华电技术 ›› 2017, Vol. 39 ›› Issue (2): 35-37.

• 研究与开发 • 上一篇    下一篇

发电厂大容量升压变压器的选择

  

  1. 神华国神集团公司技术研究院,西安〓710065
  • 出版日期:2017-02-25 发布日期:2017-04-21

Selection of large capacity stepup transformer in power plant

  1. Shenhua Guoshen Group Technology Research Institute, Xi’an 710065, China
  • Online:2017-02-25 Published:2017-04-21

摘要:

介绍了大容量升压变压器容量的选择依据。在选用三相一体变压器与3个单相变压器上,分别从负序电流、运行可靠性、运行损耗、价格及运输方面进行了分析。选择变压器短路阻抗时,既要考虑对短路电流的限制,也要考虑对机组运行稳定性及变压器电压调整率的影响。

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Abstract:

This paper introduced the selection basis of large capacity stepup transformer. The comparison of three phase compacted transformer and three single phase transformers was based on negativesequence current, operation reliability, operation loss, price, transportation and other aspects. To determine the short circuit impedance, unit operation stability and voltage adjusting rate were considered as well as short circuit current.

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