缩短厂用电保护时间级差的工程应用  

Application of the Measures for Reducing the Time Differential of Power Plant's Auxiliary Power Supply Protection

作　　者：翟大海[1] 谢勇[1] 谭富娟[1] 

机构地区：[1]华能玉环电厂,浙江省台州市317604

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)

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.

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 

分 类 号：TM621.71[电气工程—电力系统及自动化]