光纤纵差保护中的“远跳”功能探讨  

Discussion about the function of 'remote breaking' in fiber longitudinal differential protection

作　　者：孙新新[1] 贺芳[1] 

机构地区：[1]河南省电力公司新乡供电公司,河南新乡453002

出　　处：《电力系统保护与控制》2010年第20期232-234,共3页Power System Protection and Control

摘　　要：根据《国家电网公司十八项电网重大反事故措施》要求,针对双母线接线方式发生在母线及母线电流互感器与断路器之间的故障,分析了在母线保护动作后,线路的光纤纵联差动保护和高频保护的动作行为,解释了光纤纵差保护装置中远跳的作用和高频保护中的母差保护动作停信的作用一样,都是用来实现母线故障时快速跳开对侧断路器,只是实现的方式不同。According to requirement of ＂18 major anti-accident measures of State Power Grid Corporation ＂,for the fault of double bus connection occurring between bus bar current transformer and the breaker as well as which is between the bus bar and the breaker,this paper analyzes the behavior of fiber longitudinal differential protection and the high frequency protection after the analysis of the bus bar protection,and explains that effect of remote breaking in longitudinal differential protection is like the effect of busbar protection stopping the signal of the behavior in high-frequency protection,both of which are used to achieve the quick trip from contralateral breaker in case of the bus fault but in different ways.

关 键 词：光纤纵联差动保护 高频保护 母线故障 保护动作 远跳功能 

分 类 号：TM773[电气工程—电力系统及自动化]