华电技术 ›› 2010, Vol. 32 ›› Issue (1): 46-48.

• 技术交流 • 上一篇    下一篇

纵向零序电压保护及其误动原因简析

谢勇,马晶晶   

  1. 华能玉环电厂,浙江玉环 317604
  • 收稿日期:1900-01-01 修回日期:1900-01-01 出版日期:2010-01-25 发布日期:2010-01-25

Longitudinal zero sequence voltage protection and its malfunction analysis

XIE Yong, MA Jingjing   

  1. Huaneng Yuhuan Power Plant, Yuhuan 317604, China
  • Received:1900-01-01 Revised:1900-01-01 Online:2010-01-25 Published:2010-01-25

摘要: 介绍了发电机纵向零序电压匝间保护的基本原理及实际的定值整定,分析了零序电压保护误动的原因,针对现场零序电压保护的各种误动因素,提出了预防措施和解决方法。

关键词: 发电机匝间保护, 基本原理及构成, 定值整定, 误动原因, 预防措施

Abstract: The fundamental principle and actual settings of reference of longitudinal zero sequence voltage interturn protection of generator were introduced. The reasons of malfunction of zero sequence voltage protection were analyzed. Aiming at various field reasons of malfunction of zero sequence voltage protection, the solving methods and preventative measures were proposed.

Key words: generator interturn protection, fundamental principle and composition, setting of reference, reason of malfunction, prevention measure