摘要
本文介绍了一种可用于单端或双端电源的ＷＸＨ－２５型微机成套线路保护装置。该装置利用故障分量实现了单端电源内部故障的判别，解决了使用允许信号方式下的可靠跳闸问题；主保护能反应各种故障，具有很高的安全性和可靠性，对于后备保护也将其特点作了介绍；装置的重合闸除具有常规的重合闸方式外，还有单相永久故障闭锁重合的方式供选用。
Type WXH-25 microprocessor - based complete line protection fol single - terminal POweT source system or double-terminal power source system is introduced. The protection uses fault component to identify internal fault in a single terminal power source system,and thus solves the reliable trip problem in mace of using permissible signal. its main protection can response different faults and has higher security and reliability. The features of backup protection is also introduced. Addition to conventional recloserlug method,the recloser of the protection has an optional mode of blocking reclosure against single--phase permanent fault.
出处
《继电器》
CSCD
1996年第2期4-8,共5页
Relay
关键词
电源
微机保护
输电线路
single-terminal power source system
permanent fault
permissible signal
