摘要
低压配电系统中对于大的短路电流的传统保护方法采用断路器三段保护。由于这种选择性保护的固有缺陷 ,无论从技术上或是从经济上者都是不合理的。随着智能化断路器发展 ,推出了一种新颖保护技术———级间选择性连锁 (ZSI)。
The tranditional protective method for high short circuit current in the low distribution system is called as “three sections protection of circuit breakers”. Due to the fixed defect of this method in the selective protection, it is not reasonable not only for technology but also for economy. With the wide applications of intelligent circuit breakers, a new kind of protective technology——zone selective interlocking (ZSI) carried out. It is the ideal solution for low voltage distribution system. The principle and application of ZSI were introduced.
出处
《低压电器》
2002年第1期46-47,共2页
Low Voltage Apparatus
关键词
低压配电系统
级间选择性连锁
短路电流
断路器
distribution system short circuit current selective protection zone selective interlocking(ZSI)
