摘要
对西门子7UT系列差动保护装置和7SJ系列综保装置的功能和特性进行了分析研究,并在工程实践中加以应用。认为西门子微机保护中差动保护附加闭锁功能、电流保护装置中的灵敏接地保护以及实现母线快速保护的反向联锁功能等可供借鉴。对这些功能的基本原理及应用作了分析。
The functions and characteristics of Siemens 7UT series differential protection and 7 S J series comprehensive protection are studied and applied in practices. According to author's opinion ,the additional restrain of differential protection,the sensitive earth-fault detection of current pro-tection and the reverse interlocking of busbar fast protection are referable. The basic principles and applications of these functions are analyzed.
出处
《电力自动化设备》
EI
CSCD
北大核心
2004年第5期84-86,共3页
Electric Power Automation Equipment
关键词
微机保护
差动保护
灵敏接地保护
反向联锁
microcomputer-based protective device
differential protection
high sensitive earth-fault protection
reverse interlocking
