P442重合闸装置误重合分析及其改进Failure Analysis and Logic Improvement for P442 Auto-reclosing
赵晓明,沈宝兴,吴俊,余志慧
ZHAO Xiao-ming,SHEN Bao-xing,WU Jun,etc.
摘要(Abstract)：
通过一起在现场调试中发现的P442重合闸装置误重合现象的分析,发现当断路器压力低时重合闸装置会发生误重合。由此判断重合闸逻辑中有关断路器压力低闭锁重合闸的可编程逻辑(PSL)存在缺陷,并且PSL逻辑与固有逻辑存在配合问题。对产生问题的可编程逻辑进行改进,提出了一种新的解决方案。经过实验室的初步验证,可以解决P442重合闸装置误重合问题。
A failure reclose instance of P442,which is a breaker-failure and auto-reclose relay,is presented in this paper.Detail analysis of P442's programmable scheme logic and default logic is carried out to solve this problem.A modified PSL is proposed and confirmed by lab testing.
关键词(KeyWords)：
重合闸;可编程逻辑;改进
auto-reclose;programmable scheme logic;improvement
基金项目(Foundation):
作者(Author):
赵晓明,沈宝兴,吴俊,余志慧
ZHAO Xiao-ming,SHEN Bao-xing,WU Jun,etc.
DOI: 10.19585/j.zjdl.2006.06.003