摘要
介绍了华能玉环电厂6kV厂用电系统的保护配置情况;重点阐述了西门子快速母线保护、导引线差动保护在华能玉环电厂的工程应用及缩短厂用电保护时间级差的具体措施。玉环电厂快速母线保护的应用突破了以往将限时电流速断作为电源分支进线主保护的传统,具有一定参考价值。
This paper introduces the 6 kV auxiliary power system protection configuration of Huaneng Yuhuan Power Plant with focus on the application of Siemens＇s rapid bus protection and pilot wire differential protection in Huaneng Yuhuan Power Plant and the specific measures for reducing the time differential of auxiliary power protection.The application of fast bus protection makes a breakthrough from the tradition that the time limit current quick-break is used as the main protection of power branch incoming-line.
出处
《电力建设》
2010年第10期67-70,共4页
Electric Power Construction
基金
国家工程项目(发改能源[2007]1697号)
关键词
厂用电系统
热稳定电流
保护配置
综合保护
时间级差
工程应用
auxiliary power system
thermal stability current
protection configuration comprehensive protection
time differential
engineering application
