华电技术 ›› 2013, Vol. 35 ›› Issue (12): 77-79.

• 新能源 • 上一篇    下一篇

主变压器差动保护误动的案例分析

  

  1. (国能生物发电集团有限公司,北京〓100083)
  • 出版日期:2013-12-25 发布日期:2014-02-19

Case analysis of incorrect action of main transformer differential protection

  1. (Guoneng Biomass Power Generation Group Company Limited, Beijing 100083, China)
  • Online:2013-12-25 Published:2014-02-19

摘要:

摘要:以某电厂主变压器差动保护误动案例为研究对象,介绍了南瑞继保电气有限公司的RCS9671C变压器差动保护装置和电流互感器防开路保护装置的原理和作用,结合现场实际情况,分析了主变压器差动保护的误动原因,提出了反事故措施。

关键词: 关键词:变压器, 差动保护, 电流互感器, 防开路保护, 反事故措施

Abstract:

Abstract:Taking the incorrect action of the main transformer differential protection of a power plant as study object, the principle and functions of the RCS9671C transformer differential protection device and the current transformer antiopen circuit protection device, which are made in NR Electric Corporation Limited , were introduced. Combining with practical site situation, the reasons of incorrect action of the main transformer differential protection were analyzed, and televant antiaccident measures were proposed.

Key words: Key words:transformer, differential protection, current transformer, antiopen circuit protection, antiaccident measure