摘要
传统的110kV进线备自投装置因无法判断故障部位,有可能将备用电源拖到故障系统,从而造成故障扩大及对正常备用电源系统的冲击。经升级改造后的智能化备自投系统,根据变电站内各种不同部位故障的电气特性,不仅能够准确地判断出故障点,而且能够在最小范围内隔离故障点,恢复无故障设备的供电,克服了传统备自投装置的缺陷,保证了对用户供电的连续性,提高了供电的可靠性。
Traditional 110 kV input reserve power auto-switch device （LBTZ） can not exactly determine fault points, so it may put reserve power into fault system and expand fault ranges. Smart LBTZ can determine fault points accurately based on electric characteristics caused by different fault parts in the stations and then isolate fault points among minimum scopes to ensure power supply to normal devices, which overcomes traditional defects and improves power supply reliability.
出处
《电力科学与工程》
2005年第3期74-76,共3页
Electric Power Science and Engineering
