摘要
介绍了一种线路消弧及过电压保护装置。它采用西门子S7-200系列PIC对系统的弧光接地、金属接地、PT断相等故障进行自动判断,发出报警信号,在硬、软件设计方面应用了多种智能化技术措施,大大提高了保护性能。该装置结构紧凑,可靠性高,人机界面友好,适用于各种高压输电线路保护。
A PLC-Based equipment of arc-eliminating and overvoltage-protecting is introduced the SIEMENS S7-200 series PLC is used to identity automatically the malfunctions of arc-grounding,metal-grounding,FT phase-breaking and send out the warning signals multiple intellectual technologies are applied in hardware and software,and the system's performance is enhanced greatly.This equipment is compact,high reliability,friendly human-machine interface and can be used in various high ~ voltage wire protecting.
出处
《自动化技术与应用》
2004年第1期33-35,共3页
Techniques of Automation and Applications
