摘要
通过分析区域联锁(ZSI)的工作原理和特点,以及柜内典型电弧短路电流的大小,提出了适当调整现有保护系统的延时时间,以尽可能地切断电源。分析结果表明,ZSI可有效地减小柜内电弧故障的持续时间,降低故障的危害程度。
The working principle and characteristics of zone-selective interlocking （ZSI） were analyzed, and the current of typical faults arc in assemble was calculated. Consequently it is concluded that while the delay time is adjusted properly to cut off the power supply possibly. The analysis rsults show ZSI is able to minimize the duration of faults arc in assemble and reduce the hazard.
出处
《低压电器》
2013年第10期1-5,共5页
Low Voltage Apparatus
关键词
故障电弧
危害
区域联锁
开关柜
faults arc
harm
zone-selective interlocking （ ZSI ）
switch cabinet
